Dynamics modeling,simulation,and optimization of vibration characteristics of the tracked vehicle system

Abstract

In this study, the transfer matrix method for multibody systems is used to study the vibration characteristics of a tracked vehicle system. The transfer matrix method has the advantages of not needing the global dynamics equations of the system, low order of system matrices, and fast dynamics computation speed. According to the solution process of vibration characteristics, a detailed dynamics model considering the rigid–flexible coupling effect is developed to describe the structural relationship of the tracked vehicle system. Then, a topology figure for representing the transfer direction of the dynamics model is proposed to derive the overall transfer equation of the system. Dynamics equations governing the motion of the system and rocket are given. Next, through comparisons of the simulation and relevant experiments, the validity and correctness of the proposed method are verified. Based on this, the coupling dynamics responses of the system with different firing orders and firing intervals are simulated and analyzed, which shows that the firing order and interval have great influences on the vibration of the system. In this case, with the adaptive genetic algorithm, a multivariable optimization method is proposed. The optimization results show that the vibration is greatly reduced by using the optimized scheme.

Keywords

Tracked vehicle system vibration characteristics rigid-flexible coupling effect dynamics model dynamics simulation multivariable optimization

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