胶泥缓冲器的非线性刚度的控制机理研究

Research on Control Mechanism for Nonlinear Stiffness of Elastomer Damper

为了改善履带车辆悬挂系统在各种路面的平顺性和缓冲性,对悬挂系统匹配了一款具有非线性刚度的粘弹性胶泥缓冲器。为了定量地研究胶泥缓冲器的非线性刚度控制机理,建立了非线性悬挂系统的动力学方程组。提出了一种无条件稳定的线性加速度逐步积分法对非线性方程组进行数值求解的新方法,最后用冲击实验验证该方法的可靠性。该研究为胶泥缓冲器的优化设计和车辆悬挂悬挂系统的动力学匹配提供了理论指导。

In order to improve the ride and dampening performance of tracked vehicle's suspension system in all kinds of roads,a viscoelastic elastomer damper with nonlinear stiffness is matched for the suspension system. Dynamical equation sets of nonlinear suspension system are built to study the control mechanism of nonlinear stiffness of elastomer damper quantitatively. A new method of linear acceleration successive integration method with no condition stability is proposed to make the numerical solution for the nonlinear equation sets. Finally,the reliability of the above method is validated through the shock experiments. All of which will provide the theoretical guide for the optimal design of the elastomer damper and dynamic matching research between the elastomer damper and the vehicle's suspension system.