柴油机汽车悬置系统优化设计

柴油机汽车发动机悬置系统设计主要是通过合理设计悬置元件各向刚度、位置以及角度，以提高系统各向能量解耦度，并使各向自振频率落在期望值内。建立了以提高悬置系统解耦度和各向谐振频率与期望值接近程度为目标的悬置系统优化设计数学模型，采用自创的基于敏度的优化算法，通过自动迭代计算，快速准确地找到悬置元件刚度、位置与角度的最优设计方案。某柴油机汽车发动机悬置系统的优化设计算例结果表明本方法优化效果明显。改善了悬置系统的减振、隔振效果。

Optimization Design of Diesel Vehicle Mount System

It is the mainly designed methods of the automobile diesel vehicle mounting system that is through the design of mounting element anisotropic stiffness,position and angle. Then the anisotropic energy decoupling degree is improved and the anisotropic anti-vibration frequency is fall in the expectation range. This paper presents a new method, it is mounting system optimization design mathematical model that objective to improve the mounting system＇s decoupling degree and the approch level of each resonant frequency and its expectation. Using the optimization algorithm based on sensitivity,it can quickly and accurately search the mounting dement anisotropic stiffness,position and angle by the automatic inerative calculation.The results of example shows that this method has obvious optimization effect.