EXPERIMENTAL RESEARCH OF DYNAMIC QUALITIES OF FREIGHT CARS WITH BOGIES OF DIFFERENT DESIGNS

Purpose. With the advent of new designs of freright cars the task of designing the more modern bogies, assessment of their dynamic properties depending on the type and structure of pecularities, accounting the axle loadings, providing the dynamic and running characteristics, meeting the conditions of impact on the track, stability, and frame forces intensity etc. becomes especially important. In order to launch the new production into manufacture and to assess the dynamic properties using different designs of bogies the running testes were conducted. They allowed one to compare the dynamic performance of the new bogie with the existing models. Methodology. The study was conducted using the method of numerical integration and mathematical modeling of dynamic loading of freight cars using the software package «Dynamics of Rail Vehicles» («DYNRAIL»). Findings. The results of studies of dynamic characteristics of open cars with new and worn wheels of bogie models 18-9771, 18-9770 and 18-578 in graphical and tabular form are presented. All figures are within the normative values and do not exceed the maximum admissible ones. Originality. When designing the bogie for loading 23.5 t/axle almost all available technical solutions to improve the characteristics of the freight car bogies (elastic bearers, cassette bearing in axle boxes, axle boxe adapter of original design, bilinear central spring suspension, etc.) were used. Practical value. As a result of the engineering works on projecting and manufacturing of the improved designs of freight car bogies a new design was received. It is highly competitive with the dynamic qualities of the best ones. Made choice of rational values of elastic-dissipative parameters of the bogie allows one to create standard series of running gears for freight cars for promising operating conditions.The results are of practical importance. They have found reflection in the number of author’spublications in special and semi-populareditions

Ionic liquids at electrified interfaces

Until recently, “room-temperature” (<100–150 °C) liquid-state electrochemistry was mostly electrochemistry of diluted electrolytes(1)–(4) where dissolved salt ions were surrounded by a considerable amount of solvent molecules. Highly concentrated liquid electrolytes were mostly considered in the narrow (albeit important) niche of high-temperature electrochemistry of molten inorganic salts(5-9) and in the even narrower niche of “first-generation” room temperature ionic liquids, RTILs (such as chloro-aluminates and alkylammonium nitrates).(10-14) The situation has changed dramatically in the 2000s after the discovery of new moisture- and temperature-stable RTILs.(15, 16) These days, the “later generation” RTILs attracted wide attention within the electrochemical community.(17-31) Indeed, RTILs, as a class of compounds, possess a unique combination of properties (high charge density, electrochemical stability, low/negligible volatility, tunable polarity, etc.) that make them very attractive substances from fundamental and application points of view.(32-38) Most importantly, they can mix with each other in “cocktails” of one’s choice to acquire the desired properties (e.g., wider temperature range of the liquid phase(39, 40)) and can serve as almost “universal” solvents.(37, 41, 42) It is worth noting here one of the advantages of RTILs as compared to their high-temperature molten salt (HTMS)(43) “sister-systems”.(44) In RTILs the dissolved molecules are not imbedded in a harsh high temperature environment which could be destructive for many classes of fragile (organic) molecules

Physicochemical Characterization of Passive Films and Corrosion Layers by Differential Admittance and Photocurrent Spectroscopy

Two different electrochemical techniques, differential admittance and photocurrent spectroscopy, for the characterization of electronic and solid state properties of passive films and corrosion layers are described and critically evaluated. In order to get information on the electronic properties of passive film and corrosion layers as well as the necessary information to locate the characteristic energy levels of the passive film/electrolyte junction like: flat band potential (Ufb), conduction band edge (EC) or valence band edge (EV), a wide use of Mott-Schottky plots is usually reported in corrosion science and passivity studies. It has been shown, in several papers, that the use of simple M-S theory to get information on the electronic properties and energy levels location at the film/electrolyte interface can be seriously misleading and/or conflicting with the physical basis underlying the M-S theory. A critical appraisal of this approach to the study of very thin and thick anodic passive film grown on base-metals (Cr, Ni, Fe, SS etc..) or on valve metals (Ta, Nb, W etc..) is reported in this work, together with possible alternative approach to overcome some of the mentioned inconsistencies. At this aim the theory of amorphous semiconductor Schottky barrier, introduced several years ago in the study of passive film/electrolyte junction, is reviewed by taking into account some of the more recent results obtained by the present authors. Future developments of the theory appears necessary to get more exact quantitative information on the electronic properties of passive films, specially in the case of very thin film like those formed on base metals and their alloys. The second technique described in this chapter, devoted to the physico-chemical characterization of passive film and corrosion layers, is a more recent technique based on the analysis of the photo-electrochemical answer of passive film/electrolyte junction under illumination with photons having suitable energy. Such a technique usually referred to as Photocurrent Spectroscopy (PCS) has been developed on the basis of the large research effort carried out by several groups in the 1970’s and aimed to investigate the possible conversion of solar energy by means of electrochemical cells. In this work the fundamentals of semiconductor/electrolyte junctions under illumination will be highlighted both for crystalline and amorphous materials. The role of amorphous nature and film thickness on the photo-electrochemical answer of passive film/solution interface is reviewed as well the use of PCS for quantitative analysis of the film composition based on a semi-empirical correlation between optical band gap and difference of electronegativity of film constituents previously suggested by the present authors. In this frame the results of PCS studies on valve metal oxides and valve metal mixed oxides will be discussed in order to show the validity of the proposed method. The results of PCS studies aimed to get information on passive film composition and carried out by different authors on base metals (Fe, Cr, Ni) and their alloys, including stainless steel, will be also compared with compositional analysis carried out by well-established surface analysis techniques

THE WORK SIMULATION OF FLOW RATE FOR CARRIAGES' REPAIR AS A MULTIPHASE, MULTIPLEX AND MULTIDISCIPLINARY SYSTEM OF MASS SERVICE

The algorithm of computer simulation of the flexible flow for repair of cars as a multiphase polychannel manyobject queuing system is presented. The basic operators of the model are given and their work is described

Прогрес транспорту – запорука розвитку національної економіки

Purpose. To determine the influence of transport branch development through the state order implementation for rolling stock and infrastructure projects in the basic economic branches. Methodology. On the basis of situation and content analyses the impact of particular science branches development on improvement of transport modes is analyzed. The role of engineering approach for both the problem solving of the stagnant technologies negotiation and new designs creation as well as solving the economic problems at a national level is observed. Findings. The impact of transport development on the national economy improvement is analyzed; during this the active role of scientific and technical progress of transport branch is investigated. The efficient means to increase the effectiveness of national economy are analyzed; one of these means is the state order for production of the basic industry branches. All the components of the production process while launching the innovational rolling stock manufacture, including the results of scientific, project and production organizations researches are taken into account. Practical value. It is proved that, provision of the state order for domestic enterprise production is the main way of national economics strengthening and the basic direction of the life quality improvement in the country. The state order for transport branch production will solve a number of social problems of regional and state level.Цель. Определить влияние развития транспортной отрасли путем осуществления государственного заказа на подвижной состав и инфраструктурные проекты на основные отрасли экономики. Методика. На основе контент- и ситуационного анализов исследовано влияние развития отдельных отраслей науки на совершенствование транспортных средств. Отмечается роль инженерного подхода не только при решении задач по преодолению устоявшихся технологий и созданию новых конструкций, но и при решении экономических задач, причем на национальном уровне. Результаты. Рассмотрено влияние развития транспорта на совершенствование национальной экономики, при этом прослеживается активная роль научно-технического прогресса в транспортной отрасли. Рассмотрены действенные инструменты повышения эффективности национальной экономики, одним из которых является государственный заказ на продукцию основных отраслей промышленности. В том числе учитываются все составляющие производственного процесса по поставке на производство инновационного подвижного состава железных дорог, включая результаты работы научных, проектных и производственных организаций. Практическая значимость. Доказано, что обеспечение государственного заказа на продукцию отечественных предприятий – основной путь укрепления национальной экономики, и, в конечном итоге – основное направление повышения уровня жизни в стране. Госзаказ на продукцию транспортной отрасли позволит решить также целый ряд социальных задач регионального и общегосударственного уровня. Мета. Визначити вплив розвитку транспортної галузі шляхом здійснення державного замовлення на рухомий склад та інфраструктурні проекти на основні галузі економіки. Методика. На основі контент- та ситуаційного аналізів досліджено вплив розвитку окремих галузей науки на вдосконалення транспортних засобів. Відзначається роль інженерного підходу не тільки при вирішенні завдань з подолання усталених технологій і створенню нових конструкцій, але і при вирішенні економічних завдань, причому на національному рівні. Результати. Розглянуто вплив розвитку транспорту на вдосконалення національної економіки, при цьому простежується активна роль науково-технічного прогресу в транспортній галузі. Розглянуто дієві інструменти підвищення ефективності національної економіки, одним з яких є державне замовлення на продукцію основних галузей промисловості. У тому числі враховуються всі складові виробничого процесу з поставки на виробництво інноваційного рухомого складу залізниць, включаючи результати роботи наукових, проектних і виробничих організацій. Практична значимість. Доведено, що забезпечення державного замовлення на продукцію вітчизняних підприємств - основний шлях зміцнення національної економіки, і, в кінцевому підсумку - основний напрямок підвищення рівня життя в країні. Держзамовлення на продукцію транспортної галузі дозволить вирішити також цілий ряд соціальних завдань регіонального і загальнодержавного рівня

Transport progress as a pledge of national economy development

Purpose. To determine the influence of transport branch development through the state order implementation for rolling stock and infrastructure projects in the basic economic branches. Methodology. On the basis of situation and content analyses the impact of particular science branches development on improvement of transport modes is analyzed. The role of engineering approach for both the problem solving of the stagnant technologies negotiation and new designs creation as well as solving the economic problems at a national level is observed. Findings. The impact of transport development on the national economy improvement is analyzed; during this the active role of scientific and technical progress of transport branch is investigated. The efficient means to increase the effectiveness of national economy are analyzed; one of these means is the state order for production of the basic industry branches. All the components of the production process while launching the innovational rolling stock manufacture, including the results of scientific, project and production organizations researches are taken into account. Practical value. It is proved that, provision of the state order for domestic enterprise production is the main way of national economics strengthening and the basic direction of the life quality improvement in the country. The state order for transport branch production will solve a number of social problems of regional and state level

НЕКОМПЕТЕНТНІСТЬ В НАУЦІ ТА ТЕХНІЦІ – ГАЛЬМО ПРОГРЕСУ, АБО ПРО РЕЙДЕРСТВО У СФЕРІ НАУКОВО-ДОСЛІДНИЦЬКИХ ПОСЛУГ

Purpose. The analysis of the prerequisite appearing of the unfair competition in the market of research services to prevent raiding in science. Methodology. During the conducting of this study methods of scientific analysis and synthesis, the benchmarking method, the method of expert estimations were used. Findings. Possible methods of uncompetitive struggle during the performing of scientific research were examined. The urgency of this problem was proved. Therefore, the problem of the prerequisite appearing for incompetence on the market of research services and the task of its prevention and minimization of adverse effects for the development of science and technique is relevant, especially in the period of formation and the reform of the leading branches of the Ukrainian economy. The prerequisite appearing and conditions for the existence of incompetence in scientific activity were analyzed. The classification of the main ways of raiding was proposed and its justification was proved. Originality. The investigation of the phenomenon of unfair competition in the field of research services was pro-posed. The methods and means of competition between scientific organizations and individual scientists in some fields of knowledge were analyzed. The concept of "raiding" was introduced for the first time in the intellectual sphere. Practical value. The research results can be used to analyze the activity of scientific and engineering organizations, which carry out various studies to assess the validity and legitimacy of the obtained results, and to prevent raiding in science. The results of the study have practical value for public and private organizations in the determination of the competent performers to conduct research and development services, including expertise, and especially related to the evaluation of material losses or lost earnings when the impartiality and independence of this assessment is the guarantee of obtaining the reliable and objective results.Цель. В работе необходимо провести анализ предпосылок возникновения недобросовестной конкуренции на рынке научно-исследовательских услуг для предотвращения рейдерства в науке. Методика. При проведении данного исследования использованы методы научного анализа и синтеза, метод аналогий, метод экспертных оценок. Результаты. Рассмотрены возможные методы неконкурентной борьбы при выполнении научно-исследовательских работ. Обоснована актуальность данной проблемы. Доказано что, поэтому проблема возникновения предпосылок для появления некомпетентности на рынке научно-исследовательских услуг и задачи по её предупреждению и минимизации пагубных последствий для развития науки и техники являются актуальными, особенно в период становления и тем более реформирования ведущих отраслей экономики Украины. Проанализированы предпосылки возникновения и условия существования некомпетентности в научной деятельности. Классифицированы основные способы рейдерства и приведено их обоснование. Научная новизна. Предложено исследование явления недобросовестной конкуренции в области научно-исследовательских услуг. Проанализированы методы и средства конкуренции между научными организациями и отдельными учеными в некоторых областях знания. Впервые вводится и раскрывается понятие «рейдерство» в интеллектуальной сфере. Практическая значимость. Результаты исследований могут быть использованы при анализе деятельности научных и инженерных организаций, которые выполняют различные исследования, для оценки достоверности и легитимности полученных результатов, а также для предупреждения рейдерства в науке. Результаты исследования имеют практическую ценность для государственных и частных организаций при определении компетентных исполнителей на проведение научно-исследовательских услуг, в том числе экспертиз. Особенно это касается экспертиз, связанных с оценкой материальных потерь или недополученного дохода, когда непредвзятость и независимость этой оценки является гарантией получения достоверного и объективного результата.Мета. В роботі необхідно провести аналіз виникнення передумов недобросовісної конкуренції на ринку науково-дослідницьких послуг для унеможливлення рейдерства в науці. Методика. При проведенні даного дослідження використані методи наукового аналізу й синтезу, метод аналогій, метод експертних оцінок. Результати. Розглянуто можливі методи неконкурентної боротьби при виконанні науково-дослідницьких робіт. Обґрунтована актуальність даної проблеми. Доведено, що проблема виникнення передумов для появи некомпетентності на ринку науково-дослідницьких послуг і завдання щодо її попередження й мінімізації шкідливих наслідків для розвитку науки та техніки є актуальними, особливо в період становлення, і тим більш, реформування провідних галузей економіки України. Проаналізовані передумови виникнення та умови існування некомпетентності в науковій діяльності. Класифіковано основні способи рейдерства та наведено їх обґрунтування. Наукова новизна. Запропоновано дослідження явища недобросовісної конкуренції у галузі науково-дослідницьких послуг. Проаналізовано методи й засоби конкуренції між науковими організаціями та окремими вченими в деяких областях знання. Вперше вводиться та розкривається поняття «рейдерство» в інтелектуальній сфері. Практична значимість. Результати досліджень можуть бути використані при аналізі діяльності наукових та інженерних організацій, які виконують різні дослідження, для оцінки достовірності та легітимності отриманих результатів, а також для попередження рейдерства в науці. Результати дослідження мають практичну цінність для державних і приватних організацій при визначенні компетентних виконавців на проведення науково-дослідницьких послуг, у тому числі експертиз. Особливо це стосується експертиз, пов’язаних із оцінкою матеріальних втрат чи недоотриманого доходу, коли неупередженість і незалежність цієї оцінки є гарантією одержання достовірного та об’єктивного результату

INCOMPETENCE IN SCIENCE AND TECHNOLOGY - IT IS A BRAKE OF PROGRESS OR RAIDING IN THE FIELD OF RESEARCH SERVICES

Purpose. The analysis of the prerequisite appearing of the unfair competition in the market of research services to prevent raiding in science. Methodology. During the conducting of this study methods of scientific analysis and synthesis, the benchmarking method, the method of expert estimations were used. Findings. Possible methods of uncompetitive struggle during the performing of scientific research were examined. The urgency of this problem was proved. Therefore, the problem of the prerequisite appearing for incompetence on the market of research services and the task of its prevention and minimization of adverse effects for the development of science and technique is relevant, especially in the period of formation and the reform of the leading branches of the Ukrainian economy. The prerequisite appearing and conditions for the existence of incompetence in scientific activity were analyzed. The classification of the main ways of raiding was proposed and its justification was proved. Originality. The investigation of the phenomenon of unfair competition in the field of research services was pro-posed. The methods and means of competition between scientific organizations and individual scientists in some fields of knowledge were analyzed. The concept of "raiding" was introduced for the first time in the intellectual sphere. Practical value. The research results can be used to analyze the activity of scientific and engineering organizations, which carry out various studies to assess the validity and legitimacy of the obtained results, and to prevent raiding in science. The results of the study have practical value for public and private organizations in the determination of the competent performers to conduct research and development services, including expertise, and especially related to the evaluation of material losses or lost earnings when the impartiality and independence of this assessment is the guarantee of obtaining the reliable and objective results

THE MODELING OF ECONOMIC EFFICIENCY OF PRODUCTS CARRIAGE-BUILDING PLANT IN CONDITIONS OF DYNAMIC PRICING

Purpose. The purpose of the work is modeling of economic efficiency of products manufactured by carriage-building plant in conditions of dynamic pricing for different levels to engineering industry controls. Methodology. Economic feasibility of engineering production estimate for economic performance indicators and efficiency is profitability. Profit is economic results, showing the absolute result of the activity of engineering production, excluding used resource. To determine the cost-effectiveness should be applied relative index – profitability, which characterizes the amount of profit received from each monetary unit invested in production. Findings. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Originality. Has been further developed a model that describes the indicator of economic efficiency of products, which is produced by carriage-building factories in conditions of dynamic pricing at diversification of engineering production. Practical value. Developed model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market.Цель. Моделирование показателя экономической эффективности продукции, выпускаемой вагоностроительными заводами, в условиях динамического ценообразования для различных уровней контроля машиностроительной отрасли. Методика. Экономическую целесообразность машиностроительного производства оценивают по экономическим показателям результативности и эффективности – рентабельности. Прибыль – экономический результат, показывающий абсолютный результат деятельности машиностроительного производства без учета использованных при этом ресурсов. Для определения экономической эффективности следует применять относительный показатель – рентабельность, характеризующий объем прибыли, полученной с каждой денежной единицы, вложенной в производство. Результаты. Показатель общего уровня рентабельности предприятия указывает на общепроизводственную эффективность деятельности предприятия и определяется отношением балансовой прибыли к сумме стоимости основных производственных фондов и нормативных оборотных фондов. Этот показатель показывает, насколько эффективно используются материальные ресурсы предприятия, характеризуя при этом эффективность инвестированной в производство денежной единицы. В условиях динамического ценообразования проведено моделирование показателя экономической эффективности продукции, выпускаемой вагоностроительными заводами. Кроме того, полученная модель позволяет производить оперативный контроль экономической эффективности машиностроительной отрасли при различных ценовых изменениях на мировом рынке. Научная новизна. Получила дальнейшее развитие модель, описывающая показатель экономической эффективности продукции, выпускаемой вагоностроительными заводами в условиях динамического ценообразования при диверсификации машиностроительного производства. Практическая значимость. Данная модель позволяет производить оперативный контроль экономической эффективности машиностроительной отрасли при различных ценовых изменениях на мировом рынке.Purpose. The purpose of the work is modeling of economic efficiency of products manufactured by carriage-building plant in conditions of dynamic pricing for different levels to engineering industry controls. Methodology. Economic feasibility of engineering production estimate for economic performance indicators and efficiency is profitability. Profit is economic results, showing the absolute result of the activity of engineering production, excluding used resource. To determine the cost-effectiveness should be applied relative index – profitability, which characterizes the amount of profit received from each monetary unit invested in production. Findings. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Originality. Has been further developed a model that describes the indicator of economic efficiency of products, which is produced by carriage-building factories in conditions of dynamic pricing at diversification of engineering production. Practical value. Developed model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market

THE MODELING OF ECONOMIC EFFICIENCY OF PRODUCTS CARRIAGE-BUILDING PLANT IN CONDITIONS OF DYNAMIC PRICING

Purpose. The purpose of the work is modeling of economic efficiency of products manufactured by carriage-building plant in conditions of dynamic pricing for different levels to engineering industry controls. Methodology. Economic feasibility of engineering production estimate for economic performance indicators and efficiency is profitability. Profit is economic results, showing the absolute result of the activity of engineering production, excluding used resource. To determine the cost-effectiveness should be applied relative index – profitability, which characterizes the amount of profit received from each monetary unit invested in production. Findings. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Originality. Has been further developed a model that describes the indicator of economic efficiency of products, which is produced by carriage-building factories in conditions of dynamic pricing at diversification of engineering production. Practical value. Developed model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market.Цель. Моделирование показателя экономической эффективности продукции, выпускаемой вагоностроительными заводами, в условиях динамического ценообразования для различных уровней контроля машиностроительной отрасли. Методика. Экономическую целесообразность машиностроительного производства оценивают по экономическим показателям результативности и эффективности – рентабельности. Прибыль – экономический результат, показывающий абсолютный результат деятельности машиностроительного производства без учета использованных при этом ресурсов. Для определения экономической эффективности следует применять относительный показатель – рентабельность, характеризующий объем прибыли, полученной с каждой денежной единицы, вложенной в производство. Результаты. Показатель общего уровня рентабельности предприятия указывает на общепроизводственную эффективность деятельности предприятия и определяется отношением балансовой прибыли к сумме стоимости основных производственных фондов и нормативных оборотных фондов. Этот показатель показывает, насколько эффективно используются материальные ресурсы предприятия, характеризуя при этом эффективность инвестированной в производство денежной единицы. В условиях динамического ценообразования проведено моделирование показателя экономической эффективности продукции, выпускаемой вагоностроительными заводами. Кроме того, полученная модель позволяет производить оперативный контроль экономической эффективности машиностроительной отрасли при различных ценовых изменениях на мировом рынке. Научная новизна. Получила дальнейшее развитие модель, описывающая показатель экономической эффективности продукции, выпускаемой вагоностроительными заводами в условиях динамического ценообразования при диверсификации машиностроительного производства. Практическая значимость. Данная модель позволяет производить оперативный контроль экономической эффективности машиностроительной отрасли при различных ценовых изменениях на мировом рынке.Purpose. The purpose of the work is modeling of economic efficiency of products manufactured by carriage-building plant in conditions of dynamic pricing for different levels to engineering industry controls. Methodology. Economic feasibility of engineering production estimate for economic performance indicators and efficiency is profitability. Profit is economic results, showing the absolute result of the activity of engineering production, excluding used resource. To determine the cost-effectiveness should be applied relative index – profitability, which characterizes the amount of profit received from each monetary unit invested in production. Findings. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Indicator of the general level of profitability indicates the general production efficiency of the company and is determined by the ratio of the balance sheet profit to the amount of value of fixed assets and revolving funds. This figure shows how effectively the material resources of the enterprise, thus characterizing the efficiency of investing in the production of the monetary unit. In the context of dynamic pricing was simulated indicator of economic efficiency of products manufactured by carriage-building plant. In addition, this model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market. Originality. Has been further developed a model that describes the indicator of economic efficiency of products, which is produced by carriage-building factories in conditions of dynamic pricing at diversification of engineering production. Practical value. Developed model allows doing the operational control of the economic efficiency of the engineering industry at a variety of price changes on the world market