ASPECTS REGARDING THE FORMATION CHAINS SIZES TO SUBASSEMBLIES OF THE FIELD THE MECHANICS HEAVY

In this paper we present a case study on the construction and form a chain sizes for asubansamble of heavy mechanics. Importance training of chain size is reflected high quality for agriculturalmachineries and quality of grain. Dependence of the grain crushed and which not is crushed are in functionthe element closing chain size

STUDIES REGARDING THE DETERMINATION OF THE ADEQUATE ASSEMBLY TOLERANCES DEPENDING ON THE MANUFACTURING COSTS OF THE PARTS PROCESSED ON CLASSIC MACHINE TOOLS

The paper deals with a study case regarding the determination of adequate assembly tolerances. The study concerned the assembly of two bearings on an axle. Determining the adequate tolerances of the sizes chains is based on Lagrange’s multipliers use. The optimization criterion for determining the assembly tolerances is the minimization of the product achievement cost. The relation between tolerances and cost will be revealed in a graphic componen

ASPECTS CONCERNING THE IMPLEMENTATION OF A METHODOLOGY FOR DETERMINING THE COLUMNS DIAMETERS OF GUIDING A PRESE - (Part II)

In this paper we present a methodology for determining the value of the diameters of the guide column of a press which has a construction with closed frame. For determining these values is necessary to go through several stages namely: the simplified representation of the press, the representation the forces requesting the four columns, the determination the values these forces, the determination of maximum bending moment, and finally. by obtaining a determined static system and using the Mohr-Maxwell and rule Veresceaghincan get columns diameter value

INTEGRATED MANAGEMENT SYSTEM FOR A SOCIETY FROM INDUSTRY OF MACHINERY AND EQUIPMENT

In this paper shows the importance that it has SMI in a society of the industry of machinery and equipment. An integrated management system is the mode to design, implement and certify two or more management systems: Quality - Environment, Quality -Environment - Safety and Occupational Health. By implementing the system, the society themselves hires in the development and continuous improvement of the system in accordance with the ones three standards and with objective of activity of the society. Also, in the paper themselves presents the advantages and disadvantages of implementing this integrated system

Evaluare în sistemele de cercetare științifică prin platforme web, instrumente şi reţele online

An evaluation system should be: simple, easy to verify, stable, transparent, coherent, universal and flexible. To quantify the results of the scientific research activity scientometric indicators were introduced. These are quantitative indicators such as the number of published articles, the number of citations received by a published paper, the number of projects won by competition, the impact factor, the Hirsch indicator. Evaluation of research performance is an increasingly important task in the era of digitalization, free access at information and diversification of specialized networks. A wide variety of individual and institutional websites are now available to maintain the global scientific community in relation to ongoing research projects, published articles, conferences, and collaboration opportunities. In the article, an analysis of the evaluation of the performance in scientific research is carried out by bibliometric and scientometric indicators. Online research networks and tools are analyzed, focusing on the bibliometric indicators provided by them. There are web-based research platforms that enable researcher profiles. Comparisons are made between software tools for research networks

SUCCESS KEY IN DESIGNING A NEW PRODUCT

In this paper we use a quality management instrument called a tree diagram, based on undigital data, in order to show what the solutions are in order to solve an analyzed problem. The problem proposed to be analyzed is: identifying specific objects and corresponding measures to successfully design a new product. The proposed solutions are grouped into three specific objectives: Top management commitment; Beneficiary need analysis; Designing process quality. The tree diagram for the analyzed problem is made

ASPECTS CONCERNING THE IMPLEMENTATION OF A METHODOLOGY FOR DETERMINING THE COLUMNS DIAMETERS OF GUIDING A PRESE - (Part I)

In this paper we present a methodology for determining the value of the diameters of the guide column of a press which has a construction with closed frame. For determining these values is necessary to go through several stages namely: the simplified representation of the press, the representation the forces requesting the four columns, the determination the values these forces, the determination of maximum bending moment, and finally. by obtaining a determined static system and using the Mohr-Maxwell and rule Veresceaghincan get columns diameter values

THE SOLUTION OF THE ALGORITHM FOR SOLVING THE DIMENSIONAL CHAINS DURING THE DESIGNING COURSE

The methodology of solving the designing problems and calculus formulasdependent upon the way of showing the sourcing data and the required results of the calculus. Thegiven operative dimensional chain is made up of three primary constitutive elements, respectivelyof the closing element. When solving the designing problem the rated size of the determinativeelement shall be circled and checked up, without exceeding the limit values of the calculus of theclosing element, since they are its regulating values. As a result solving the size chain nthe ratedvalue of the constitutive element shall be found out. At such a rated value, the closing elementshall be made up within the regulating limits of the reserve on the lower, respectively upperlimits. If the reserve on the tolerance of the closing element ist else than zero, then the output ofthe actual values of the closing elements on the settled limits cannot be avoided. If the reserve onthe tolerance of the closing element ist equal withn zero, then the rounding off of the rateddetermined value of this chain could not be possible

WAYS OF REALIZATION OF COAL DEPOSITS

In this paper are presented the importance and the ways of realization of the coal deposits resulting in the storage of larger quantities of coal in the deposit on the same surface, the production of solid fuel coal with the same calorific value, the reduction of the permeability stack, avoiding autoignition, homogenizing different qualities of coal, avoiding thermal variations in boiler operation

STUDIES ON THE MODERNIZATION OF LARGE CAPACITY EXCHANGERS EXISTENCE IN MINIER ROVINARI BASIN

This paper presents improvements to parts of the excavatorERc1470/30/7, resulting in: increasing the volume of annual mines by improving the time of intensive and extensive use, lower production costs, increased operational safety, improving the quality of the delivered production, reducing the excavator's weight by replacing some subassemblies having lower weight, low power consumption, optimization of excavation capacity, ensuring the ergonomic comfort of the excavator and protection of electrical and mechanical circuits