摘要
对某车型四缸直列发动机悬置系统进行了优化设计。使用SQP(sequential quadratic programming)优化算法,通过选择各个悬置的刚度,使传递到车身的动反力最小。同时保证各个悬置有足够的刚度,在各种工况下其静变形和振动幅值都限制在允许的范围内。优化后悬置系统隔振性能显著提高,传递力仅为原系统的50%。最后分析了优化后系统的隔振机理。
Optimal design of a 4-cylinders 4-strokes engine-mount system for vibration control was presented. The total force transmitted from the engine to the floor was minimized by choosing appropriate stiffness of each mount. The SQP (Sequential Quadratic Programming) method was used as the optimization algorithm. The static and dynamic deflection are both kept within the desired limits. Compared with the original system, the force transmission is only one half. The mechanism of vibration isolation was investigated with the frequency response of the system.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第8期56-58,共3页
Journal of Vibration and Shock
关键词
发动机悬置
优化
隔振
传递力
engine mount system
optimization
vibration isolation
