Zhyzhko V. Improvement of damping qualities of bogie's spring suspension of passenger cars.

Improvement of damping qualities of bogie's spring suspension of passenger cars for improvement its dynamical parameters are being researched in the dissertation work. For the first time developed mathematical model of pneumatic spring, that allows to take into account properties of real gas during damping. Improved mathematical model of dimensional vibrations of passenger car on bogies with pneumatic springs, with the aim of determine the rational parameters of central suspension. Optimal parameters of spring suspension, for reaching movement speed till 300 km/h were determined. Indexes of running qualities of passenger car with different models of bogies. Cost-effectiveness analysis of improving parameters of spring suspension of rail carriages was made, also was calculated power costs on hauling of passenger train with different construction of bogies with passport and optimal parameters of railway car spring suspension.