ВПЛИВ ОСНОВНИХ СИЛОВИХ ПАРАМЕТРІВ КЕРОВАНОЇ СИСТЕМИ ПІДРЕСОРЮВАННЯ НА ПОЗДОВЖНЬО–КУТОВІ КОЛИВАННЯ БОЙОВИХ КОЛІСНИХ МАШИН

Abstract

The paper presents the results of theoretical studies of the influence of the main power parameters of the controlled suspension system on the longitudinal-angular oscillations of combat wheeled vehicles. An analysis was made of the nature of the conduct of modern armed struggle and the changed conditions for the use of combat wheeled vehicles. The relevance of increasing their mobility by improving the smoothness of the ride through the use of a controlled suspension system is substantiated. The analysis of well-known scientific and methodological approaches to describing the dynamics of wheeled vehicles is carried out. According to the results of the analysis, their imperfection was established. They are based on linear dependencies and do not allow taking into account the influence of the main power parameters of the controlled suspension system on the transverse-angular vibrations of wheeled vehicles. 40 A physical model of a combat wheeled vehicle and analytical dependencies for assessing the influence of the parameters of a controlled suspension system on the longitudinal-angular oscillations of combat wheeled vehicles are proposed. Unlike the known ones, the obtained dependences are non-linear and allow taking into account the influence of longitudinal-angular oscillations of combat wheeled vehicles. Based on the results of the analysis of the obtained analytical deposits, it was found that, in contrast to suspension systems with a linear law of the restoring force of elastic shock absorbers, for an adaptive suspension system, the natural frequency of longitudinal-angular oscillations depends not only on the static deformation of elastic shock absorbers, but also on the oscillation amplitude. It was also found that for combat wheeled vehicles with a controlled power characteristic of the suspension system, the amplitude of the initial perturbation of vibrations is greater for suspension systems with a large value of static deformation. A mathematical relation has been obtained to determine the amplitude of the initial disturbance of the longitudinal-angular oscillations caused by the collision of a combat wheeled vehicle on the unevenness of the supporting surface. The obtained analytical dependencies can later be used to create a software product necessary for the development of a controlled suspension system.