基于Adams的动力总成集中质量模型悬置优化  

Suspension Optimization of Concentrated Mass Model of Powertrain Based on Adams

作　　者：郝晨航 陈世其[1] 席云熠 兰梦远 Hao Chenhang;Chen Shiqi;Xi Yunyi

机构地区：[1]中国矿业大学机电工程学院

出　　处：《工程机械》2025年第3期93-97,I0005,共6页Construction Machinery and Equipment

摘　　要：动力总成悬置系统与整车NVH性能密切相关,但动力总成的模型建立较为复杂,将动力总成简化为集中质量模型进行悬置系统优化,大大缩减仿真建模时间,选取两组对称橡胶悬置的6个主方向刚度为设计变量,以动力总成悬置系统在各阶固有频率上的能量解耦率为目标函数,利用Adams/Insight进行灵敏度分析,通过多目标单参数设计研究确定各刚度对主要振动方向解耦率的影响规律进而缩小参数变量区间,实现优化的目的。结果显示,优化后的动力总成质心振动幅值和各悬置支反力显著降低,解耦率有了明显提高,优化后的动力总成悬置系统得到了改善。The powertrain suspension system is closely related to the overall NVH performance.However,the model establishment of the powertrain is complicated,and simplifying the powertrain into a centralized mass model for optimization of the suspension system greatly reduces the simulation modelling time.Six main directional stiffnesses of two symmetrical rubber suspensions are selected as the design variables,and the energy decoupling rate of the powertrain suspension system at each order of natural frequency is taken as the objective function.The sensitivity is analyzed by using Adams/Insight,and through multi-objective single-parameter design research,the influence of each stiffness on the decoupling rate at the main vibration directions is determined to narrow down the parameter variable interval,so as to achieve the purpose of optimization.The results show that the vibration amplitude of the center of mass of the optimized powertrain and the support reaction of each suspension are significantly reduced,the decoupling rate is significantly improved,and the optimized powertrain suspension system is improved.

关 键 词：动力总成 悬置系统 ADAMS 能量解耦 优化设计 支反力 

分 类 号：TH122[机械工程—机械设计及理论]