于健1,2，王飞1,2，何盛强1,2，王志秀1,2
1.内燃机可靠性国家重点实验室,山东潍坊261061；2.潍柴动力股份有限公司,山东潍坊261061
摘要：为消除发动机齿轮啸叫噪声，采用AVLExcite Power Unit软件搭建齿轮系动力学模型，通过动力学计算，得到轴承受力的时域曲线，对时域曲线进行傅里叶变换，得到频域曲线，通过不同阶次的力分析齿轮宏观参数和齿轮修型对啸叫的影响，并对齿轮系进行优化。结果表明，加大重合度和适当的齿向齿廓修型可以有效降低齿轮啸叫风险。
关键词：齿轮系;啸叫;动力学；
Abstract：In order to eliminate engine gear whistle, AVLExcite Power Unit software is used to build the gear system dynamics model, and the bearing load curves are obtained by dynamics calculation. Fourier transform is employed to transfer the timedomain curve to the frequencydomain curve. The influence of gear macro parameters and gear modification on whistling through the force of different orders are analyzed, and the gear system is optimized. The results show that the risk of gear whistling can be effectively reduced by increasing the coincidence degree and proper tooth profile modification.
Keywords:gear system; whistle; dynamics; AVLExcite Power Unit
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