面向汽车传动系统多挡共振的多级吸振器参数设计方法  

Parameter design method of multiple dynamic vibration absorbers for suppressing multi-frequency resonance of automotive powertrain

作　　者：曲俊龙 史文库[1] 玄圣夷[1] 陈志勇[1] QU Jun-long;SHI Wen-ku;XUAN Sheng-yi;CHEN Zhi-yong(State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China)

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报(工学版)》2025年第2期444-455,共12页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点研发计划项目(2018YFB0106203);吉林省发改委产业技术研究与开发项目(2019C041-4)。

摘　　要：针对汽车动力传动系统多个挡位存在扭转共振的问题,本文提出了一种多级并联动力吸振器的参数设计方法。首先,建立四自由度动力传动系统扭振模型并进行模态分析,基于共振模态的等效系统推导了n级并联动力吸振器的频响函数;然后,以4级并联动力吸振器为例,将传动系统3个挡位的振动角位移和振动角加速度作为优化目标,采用改进的非支配排序遗传算法对吸振器组的定调比和阻尼比进行优化,利用熵值法联合逼近理想解的排序法对Pareto解进行排序;最后,通过与3种传统的动力吸振器优化方法进行对比,并进行时域和频域仿真分析,验证了本文设计方案的有效性。本文方法可为固有频率可变振动系统的动力吸振器优化设计提供参考。A parameter design method of multiple parallel dynamic vibration absorbers is proposed in orderto suppress the powertrain system torsional resonance that exists in various gears of automotive.First,afour degrees of freedom powertrain model is presented,and the expression of the frequency responsefunctions of the vibration system are derived based on the equivalent system with n parallel dynamicvibration absorbers attached.Then,the Nondominated Sorting Genetic Algorithm II is adopted to optimizethe frequency ratios and damping ratios of the four parallel dynamic vibration absorbers in order to minimizethe angular displacement and acceleration of the vibration system under three different gear ratio conditions.The Technique for Order Preference by Similarity to an Ideal Solution combined with the Entropy WeightMethod is utilized to sort the Pareto solutions.Finally,the proposed optimization method is validatedeffective by comparing with three other traditional methods,and the time and frequency domain simulationsare also implemented for the validation.The proposed method can provide references for the optimalparameter design of the dynamic vibration absorber when the eigenvalue of the target system is variable.

关 键 词：车辆工程 汽车传动系 扭转振动 动力吸振器 多目标优化 多频率减振 

分 类 号：U461.1[机械工程—车辆工程]