Оптимизация эвольвентного зацепления по коэффициенту перекрытия

Розглянуто вплив параметрів евольвентної зубчастої передачі на її коефіцієнт перекриття. Підвищення цього коефіцієнту приведе до зниження навантаження на зубець в два рази. Це дозволить підвищити довгочасність передачі в 6 разів. Досягти цього можна за допомогою зниження кута зачеплення до 15°.Influence of parameters of involute gearing on its factor of overlapping is considered. The increase in this factor will lead to decrease inloading on a tooth twice. It will allows to increase durability of transfer to 6 times. To reach it, it is possible by decrease in a corner of gearing up to 15 degrees

Mikroskopische Disposition spurgebundener Verkehrsmittel unter Echtzeitbedingungen

The process of dispatching track guided means of transportation is a rather complex and sophisticated task. The track guidance implies a small number of possible dispatching possibilities on the one hand, but on the other hand strongly increases the interactions with other means of transportations. These interactions can be recognizes in practice as (knock-on) delays and disturbances of operation. In this context, the purpose of dispatching activities is to reduce or compensate interactions, which are experienced negatively. For a good quality of prognosis of these interactions and their consequences a microscopic consideration appears to be an appropriate approach, which enables realistic rescheduling and dispatching decisions, e.g. with respect to train protection systems and their behavior or to track topologies and routing alternatives. But the microscopic approach also implies a high quantity of data and information, so that the introduction and usage of computer based systems is self-evident. The PhD work analyses, examines and defines computer based microscopic dispatching systems and required system components. The work is structured in three major parts:1. Required functionalities and components of real-time dispatching systems are analyzed and identified in such a way, that they fit into existing operational systems and can act in real-time. Additional aspects like parallelism of processes or system scalability are presented and elementary decisions concerning the implementation under realistic conditions are derived.2. The microscopic data model is defined formally to provide a basis for system functionalities and system design. The definition contains different structures like infrastructure topology and additional layers for representing train protection techniques and schedule related structures to represent trains, trajectories or timetables.3. The introduction and presentation of one specific dispatching algorithm, which is appropriate to carry out the core functionality of a real-time dispatching system. An existing asynchronous approach is analyzed, missing abilities are identified and extended, evaluated under different aspects

Mikroskopische Disposition spurgebundener Verkehrsmittel unter Echtzeitbedingungen

The process of dispatching track guided means of transportation is a rather complex and sophisticated task. The track guidance implies a small number of possible dispatching possibilities on the one hand, but on the other hand strongly increases the interactions with other means of transportations. These interactions can be recognizes in practice as (knock-on) delays and disturbances of operation. In this context, the purpose of dispatching activities is to reduce or compensate interactions, which are experienced negatively. For a good quality of prognosis of these interactions and their consequences a microscopic consideration appears to be an appropriate approach, which enables realistic rescheduling and dispatching decisions, e.g. with respect to train protection systems and their behavior or to track topologies and routing alternatives. But the microscopic approach also implies a high quantity of data and information, so that the introduction and usage of computer based systems is self-evident. The PhD work analyses, examines and defines computer based microscopic dispatching systems and required system components. The work is structured in three major parts:1. Required functionalities and components of real-time dispatching systems are analyzed and identified in such a way, that they fit into existing operational systems and can act in real-time. Additional aspects like parallelism of processes or system scalability are presented and elementary decisions concerning the implementation under realistic conditions are derived.2. The microscopic data model is defined formally to provide a basis for system functionalities and system design. The definition contains different structures like infrastructure topology and additional layers for representing train protection techniques and schedule related structures to represent trains, trajectories or timetables.3. The introduction and presentation of one specific dispatching algorithm, which is appropriate to carry out the core functionality of a real-time dispatching system. An existing asynchronous approach is analyzed, missing abilities are identified and extended, evaluated under different aspects