【摘要】 汽车动力总成悬置支架是动力总成悬置系统的安全件和功能件,它的结构强度影响汽车的安全性,其一阶固有频率对车内噪声有较大的影响。以某轿车动力总成悬置支架为分析对象,阐述了对悬置支架优化设计时,设计空间与非设计空间确定、拓扑优化与形状优化的过程等。优化结构与试验结果的对比分析表明,建立的悬置支架优化设计方法对悬置支架的设计计算分析是有效的。更多还原

【Abstract】 A powertrain mount bracket is an important part in the powertrain mounting system.The strength of the bracket is very importance to the vehicles’ safety,and its 1st natural frequency has great influence on the interior noise of a vehicle.In this paper,topology and shape optimization method is applied to design a mount bracket.The optimized results are compared to the test results.It is demonstrated that the structural optimization methodologies are proved to be effective in designing a mount bracket.更多还原