振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
23期
155-159
,共5页
严小俊%蒋伟康%曹诚
嚴小俊%蔣偉康%曹誠
엄소준%장위강%조성
动力总成%悬置系统%隔振%解耦%优化设计%遗传模拟退火算法
動力總成%懸置繫統%隔振%解耦%優化設計%遺傳模擬退火算法
동력총성%현치계통%격진%해우%우화설계%유전모의퇴화산법
powertrain%mounting system%vibration isolation%decouple rate%optimization%simulated annealing and genetic algorithm
针对某轿车在发动机低速工况下,动力总成悬置系统隔振效果不足,以悬置系统的固有频率配置和系统的解耦率为综合优化目标,应用遗传模拟退火算法对悬置刚度参数进行了优化设计,优化后的悬置系统固有频率配置更加合理,主要方向的解耦率增大。整车试验结果表明,优化后的悬置系统隔振效果满足了设计要求。
針對某轎車在髮動機低速工況下,動力總成懸置繫統隔振效果不足,以懸置繫統的固有頻率配置和繫統的解耦率為綜閤優化目標,應用遺傳模擬退火算法對懸置剛度參數進行瞭優化設計,優化後的懸置繫統固有頻率配置更加閤理,主要方嚮的解耦率增大。整車試驗結果錶明,優化後的懸置繫統隔振效果滿足瞭設計要求。
침대모교차재발동궤저속공황하,동력총성현치계통격진효과불족,이현치계통적고유빈솔배치화계통적해우솔위종합우화목표,응용유전모의퇴화산법대현치강도삼수진행료우화설계,우화후적현치계통고유빈솔배치경가합리,주요방향적해우솔증대。정차시험결과표명,우화후적현치계통격진효과만족료설계요구。
Aiming at vibration isolation effect of one vehicle powertrain mounting system was insufficient,its natural frequencies and the decouple rate of the system were taken as integrated optimal objectives,and the simulated annealing and genetic algorithm (SAGA)were used to optimize the mounting stiffness parameters.The optimized results showed that its natural frequency deployment is more reasonable and the decouple rate in the major vibration direction increases.The vehicle vibration isolation test results showed that the vibration isolation effects of the optimized mounting system meet design requirements.