ANALYSIS OF THE EXISTING ROUTE NETWORK OF THE CITY OF MARHANETS

Purpose. Analysis of the problem of quality functioning of the city passenger transport system of Marhanets in order to develop proposals to improve the quality of transport services. Methodology. To determine the capacities of areas of origin and arrival of passengers used tabular method. Graph theory was used in the development of the topological scheme. The gravitational model was used to calculate the matrix of interdistrict correspondence. Findings. The analysis of the current state of the existing route transport network of Marhanets is performed; the topological scheme of the city is developed; the characteristic of operating city routes is presented; the capacities of transport districts are determined, the matrix of interdistrict correspondence is calculated; the assessment of the existing route network is performed, the initial route network is formed; determined time spent on approaching the stops. Originality. The study of the process of transportation of passengers on the transport network of Marhanets will allow to develop proposals for improving the passenger route network to improve the quality of transport services to the population of the city. Practical value. The practical significance of the work is that the development of a rational passenger route network will improve the quality of transport services for the population of Marhanets, reduce the time spent by passengers to approach the stops and improve the quality of passenger service.

Design and kinematics of a novel double-ring truss deployable antenna mechanism

This paper aims to present the topological structure design and kinematic analysis of a novel double-ring truss deployable satellite antenna mechanism. First, a new topological scheme and a new rectangular prism deployable linkage unit are proposed for constructing the kind of antenna mechanisms. Second, the degree-of-freedom (DOF) of the deployable unit and the antenna mechanism are analyzed based on structure decomposition and screw theory. Third, the kinematic model of the double-ring truss deployable antenna mechanism is established based on its structural characteristics. Finally, a typical numerical example is used to illustrate the effectiveness of the designed mechanism and the established kinematic model. The new double-ring truss deployable antenna mechanism consists of the units with the better structural symmetry, and has simpler joint axis layouts, comparing with the same type of most existing mechanisms.

TOTALITY OF POWER IMPACTS, CONDITIONS AND MEANS OF ENERGY SUPPLY TO PRESCRIPTION COMPONENTS OF THE DOUGH

Создана и детализирована подсистема «Совокупность энергетических воздействий, условий и средств подачи энергии рецептурным компонентам теста» первичной топологической схемы замеса теста. Показано, что энергетическое воздействие на тесто определяет степень его обработки. Условия передачи энергии рецептурным компонентам при замесе теста могут быть оценены по интенсивности, длительности и эффективности воздействия. Одним из условий повышения интенсивности воздействия при замесе является совершенствование конструкций рабочих камер и месильных органов, методов их воздействия на тесто с учетом специфики процессов, происходящих при замесе. Средствами подачи энергии к компонентам могут являться как отдельные смесительные машины, так и их совокупность в сочетании с вспомогательными устройствами, обеспечивающими интенсификацию процесса замеса теста. The subsystem “The totality of power impacts, conditions and means of energy supply for prescription components of the dough” of primary topological scheme of dough kneading was created and detailized. It is shown that the energy impact on the dough determines its degree of processing. The energy supply conditions for prescription ingredients when mixing the dough can be measured by the intensity, duration and impact efficiency. One of the conditions for increasing the impact of the intensity of kneading is to improve the structures of the working chambers and kneading organs, methods of their impact on the dough taking into account specific processes that occur during kneading. Means of power supply to the components can be separate mixing machines as well as their combination in conjunction with auxiliary devices, to ensure the intensification of the process of dough kneading.