【摘要】 利用CATIA和ADAMS软件建立了某小型纯电动汽车动力总成悬置系统的6自由度刚体动力学模型。分析了该动力总成悬置系统的固有特性、耦合特性和电动汽车在起步与制动工况下的瞬态特性。考虑橡胶悬置元件的安装位置和角度,以悬置刚度为设计变量,以能量解耦为优化目标,利用ADAMS/Insight对悬置参数进行了优化,结果表明,优化后能量解耦程度有了明显的提高,悬置系统的隔振性能大大改善。更多还原

【Abstract】 A 6 DOF rigid body dynamics model for the powertrain mounting system of a compact electric vehicle is created by using software CATIA and ADAMS.Then the natural characteristic and coupling characteristic of powertrain mounting system and the transient characteristics of electric vehicle in starting and braking conditions are analyzed.Taking account of the mounting position and angle of rubber mount elements,with the mount stiffness as design variables and the energy decoupling as objective,an optimization on mounts parameters is conducted with ADAMS/Insight.The results show that after optimization the extent of energy decoupling in mounting system is apparently enhanced and hence its vibration isolation performance significantly improves.更多还原