摘要
发动机振动向车身的传递程度对车辆舒适性的影响很大,针对某型汽车存在的发动机振动向车身传递偏大的问题,将能量解耦法应用在动力总成悬置系统优化领域。建立了该汽车动力总成悬置系统的动力学模型并推导出运动微分方程,开发出基于MATLAB的动力总成悬置系统优化平台。分别运用该软件平台和ADAMS软件对动力总成悬置系统进行建模和优化,通过对比分析得到的优化结果,证明使用基于MATLAB开发的软件平台对动力总成悬置系统进行优化是可行的。
Abstract： Transmission rate of the vibration between engine and automotive body will have a significant influence on the ride comfort of vehicle. Aiming at the problem of high degree of vibration transfer from engine to body existed on a type of automobile, energy decoupling method is applied to the field of powertrain mounting system optimiza tion. A dynamic model of the powertrain mounting system is built while the differential equations of motion are es tablished. Then the powertrain mount system optimization platform is developed based on the MATLAB software. The modeling and optimization for the powertrain mounting system was completed by using this platform and ADAMS software, respectively. Analysis and comparison of the optimized results showed that it is feasible to apply this platform to conduct an optimization for the vibration isolation of the powertrain mounting system.
出处
《机械科学与技术》
CSCD
北大核心
2014年第2期271-275,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51265006)
广西制造系统及先进制造技术重点实验室项目(11-031-12_008和11-031-12_003)
广西教育厅基金项目(0815)
广西科技开发项目(桂科攻1348005-11)资助
关键词
优化
动力总成悬置系统
振动
能量解耦法
隔振
automobile suspensions
automobiles
computer software
constrained optimization
differential equa- tions
mathematical models
MATLAB
matrix algebra
optimization
vibrations（mechanical）
pow- ertrain mounting system
vibration
energy decoupling
vibration isolation
