江苏大学学报（自然科学版）2013，Vol.34Issue(4)：378-383,6.DOI:10.3969/j.issn.1671-7775.2013.04.002
手动变速箱空挡齿轮敲击问题的影响因素分析
Multifactor analysis of neutral gear rattle in automobile manual transmission
摘要
Abstract
The interior sound quality of automobiles is greatly affected by gear rattle noise.To investigate the neutral gear rattle problem of automotive transmission,a lumped parameter model with four degrees of freedom was established with two nonlinear factors of the clutch torsional stiffness and the elastic compression force between conjugate gear pair.Based on the model of gear rattle problem,the dynamic equations were established to determine the rattle criterion.The influences of clutch parameters and non-clutch parameters were analyzed in detail through simulation.The clutch parameters include stiffness,hysteresis,viscous damping coefficient and stiffness transition,while the non-clutch parameters include damping coefficient and inertia of input gear and output gear,engine speed and amplitude of excitation torque.The results show that for the clutch parameters,low stiffness and hysteresis of first stage are required to obtain low rattle level.Because the rattle level reduces firstly and then increases with the increase of viscous damping coefficient,there is an optimal value of viscous damping coefficient to realize low rattle level.For the non-clutch parameters,the decreased damping coefficient of input gear and inertia of output gear,the increased damping coefficient of output gear and inertia of input gear,the enhanced engine speed and the low amplitude of excitation torque are preferable to reduce the gear rattle.关键词
手动变速箱/齿轮敲击/判定条件/影响因素/噪声Key words
manual transmission / gear rattle / criterion / influence factor/ noise分类
通用工业技术引用本文复制引用
郭荣,裘剡,章桐,于钦林,朱伟伟..手动变速箱空挡齿轮敲击问题的影响因素分析[J].江苏大学学报（自然科学版）,2013,34(4):378-383,6.基金项目
国家自然科学基金资助项目(51205290) （51205290）
中央高校基本科研业务费专项资金资助项目(1700219118) （1700219118）
