汽车动力总成悬置系统刚度优化设计  

Optimization Design of Car Powertrain Mounting Stiffness

作　　者：王耀华[1] 陈义保[1] 刘培培[1] 王燕涛[1] 

机构地区：[1]烟台大学机电汽车工程学院,山东烟台264005

出　　处：《机械设计与制造》2013年第9期143-146,共4页Machinery Design & Manufacture

基　　金：山东省自然科学基金(ZR2011EL012);山东省高等学校科研基金(J11LD26);山东省高校重点实验室(先进制造与控制技术)

摘　　要：针对某一款国产汽车动力总成悬置系统解耦率偏低和振动频率分布不均的情况,以各主方向上解耦率最大为优化目标,悬置三个主方向上的刚度为设计变量,在特定的约束下利用确定性优化技术提高其解耦率。对确定性优化结果进行蒙特卡罗模拟,确定性优化结果的稳健性不足。针对稳健性不足的情况,采用6σ稳健性优化方法对确定性优化结果进行稳健性优化,并对结果进行了蒙特卡罗模拟。结果表明,基于质量工程的悬置刚度优化提高了系统的解耦率和稳健性,具有较强的工程价值。It introduced the method that the decoupling degrees are improved by the deterministic optimization technique with maximizing decoupling as objective , the vertical stiffness as design variable and some specified conditions as constrains because of former low decoupling degrees of powertrain mounting system. The deterministic optimization results are less robustness by proceeding the monte carlo simulation. Six sigma optimization was used for improving the robustness. The result of optimization based on quality engineering show that the scheme has strong engineering value because it can not only reduce the vibration but also enhance the robustness.

关 键 词：动力总成悬置系统 质量工程 稳健性 优化 

分 类 号：TH16[机械工程—机械制造及自动化] U46[机械工程—车辆工程]