Autor: Cherkashina, E. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Research of influence of change of temperature mode on elastic-dissipative properties of suspensions
Autorzy:: Lyaschenko, M.
Cherkashina, E.
Buryakov, V.
Lutin, I.
Powiązania:: https://bibliotekanauki.pl/articles/244191.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dissipative element
elastic element
suspension
temperature mode
viscosity
volume
pressure
Opis:: During the operation of the vehicle the friction in dissipative elements causes change of temperature mode. So there is a change in viscosity and volume of liquid. Also, change gas volume and pressure of elastic element. It has a significant impact on dissipative characteristic of suspensions as well as the elastic ones. The study of the rated model dedicated to the proces s of changing gas pressure and volume, as well as using as a working liquid oils with different densities and different viscosity changes depending on change of temperature mode. The rated model is presented basing on the elaboration, executed in Volgograd State Technical University in collaboration with Volgograd Engineering Company (ŤVMC" VgTZ). Researchers based on change of pressure of gas in elastic element at constant Volume; on change of volume of gas at constant pressure: on change of volume of liquid depending on used oil; on change of resistance of dissipative element at change of properties of liquid. In the paper example results of experimental researches of hvdromatic spring are presented. A comparison of resistance change of the shock-absorber at rise in temperature is worked out as well. Analysis of the obtained results indicates that essential influence has charting pressure.
Źródło:: Journal of KONES; 2009, 16, 1; 317-323
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The vehicle ride comfort increase at the expense of semiactive suspension system
Autorzy:: Podzorov, A.
Prytkov, V.
Cherkashina, E.
Liashenko, M.
Powiązania:: https://bibliotekanauki.pl/articles/244491.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: vehicle
semi-active suspension
ride comfort
shock absorber
pneumatic spring
multidimensional model
Opis:: The problem of control by a semi-active suspension for increase a ride comfort of a vehicle is considered. On an example of multidimensional mathematical model of the bus, an efficiency of a semi-active suspension with controllable shock absorbers and pneumatic springs is analyzed. Results of computer simulation of movement of the bus with a semi-active suspension on road with a stochastic profile are presented. Calculations have been executed in the program of modelling of dynamics of systems solid and elastic bodies - FRUND. As conclusions it is possible to notice that the semiactive suspension with controlled under offered laws elastic and damper elements allows to depress considerably dynamic ability to loading spring vehicle parts, thereby, raising its stroke ride comfort, without deterioration of parameters influencing stability and movement roadability. Results of numerical experiment and offered laws of controlling can form a basis for creation structurally concerning simple semiactive suspension systems a not demanding for work of a significant amount of power. The semiactive suspension with controlled under offered laws elastic and damper elements allows depressing considerably dynamic ability to loading spring vehicle parts, thereby, raising its stroke ride comfort, without deterioration of parameters influencing stability and movement roadability.
Źródło:: Journal of KONES; 2011, 18, 1; 463-470
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Investigation of thermal intensity of hydropneumatic spring of vehicle
Autorzy:: Cherkashina, E.
Liashenko, E.
Shekhovtsov, V.
Valentsev, M.
Powiązania:: https://bibliotekanauki.pl/articles/244660.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: vehicle
hydropneumatic spring
average capacity
temperature
thermal intensity
external surface area
Opis:: During the moving of vehicle is a change in temperature mode, which arises due to fluid friction in the dissipative element (throttle bores) hydropneumatic spring. In this case, hydropneumatic spring can be warm to significant temperatures. Due to lower viscosity of the fluid below the warning level, the increased heat causes a sharp increase in various types of leakage, increased friction parts, and as a consequence, the intensive wear and seizure of the surfaces. This leads to partial or complete loss of efficiency hydropneumatic springs. To changes in temperature mode in the hydropneumatic spring is influenced not only the external surface of the hydropneumatic spring, temperature and speed of blowing air flow, but also the conditions and the duration of the moving of vehicle. In this paper we investigate the heat intensity of the hydropneumatic springs of vehicle in weight 5.5 tons during the moving at different speeds for different types of roads. Investigations were carried out on the basis of mathematical models realized in a package of Matlab Simulink. In this case, was fixed the time average power released in the hydropneumatic spring in the form of heat. According to the research conclusions were drawn about the most heavy-duty vehicle and the amount of heat generated by the length of relative motion in this mode. To prevent overheating, an algorithm diagnosis of the condition and management of heat intensity of the hydropneumatic springs Also made recommendations to reduce the heat intensity hydropneumatic springs.
Źródło:: Journal of KONES; 2011, 18, 1; 99-102
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Combined control of hydropneumatic springs of the vehicle
Autorzy:: Liashenko, M.
Podzorov, A.
Shekhovtsov, V.
Prytkov, V.
Cherkashina, E.
Powiązania:: https://bibliotekanauki.pl/articles/247202.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: controlled suspension system
ride comfort
hydropneumatic spring
road tests
spatial mathematical model
vehicle
Opis:: The article is devoted to research of a vehicle ride comfort, equipped the suspension system with combined control of springing and damping elements. The spatial mathematical model of a vehicle which meets the requirements of adequacy to real object was developed. The results of the computer simulation of movement of the vehicle with controllable and passive suspension systems on stochastic microprofile are presented. It can be concluded that the spatial multi-mass model is satisfactory close to a real object and can be used for further calculations. Having analyzed simulation results we can state significant increase of ride comfort of a vehicle equipped with a controlled suspension system. Decrease of vertical acceleration of a cabin in a place where a driver sits amounted to 40% in average that can be considered as a limit value for this type of controlled suspension systems. It can be noted that a suspension system with combined control of springing and damping elements can be considered as rather effective in terms of decreasing load of vehicle spring-mounted parts that along with low power consumption makes it rather competitive. The shown research results and control laws for springing and damping elements can be used as a basis for development of relatively simple controlled suspension systems.
Źródło:: Journal of KONES; 2011, 18, 4; 229-234
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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