【作者】

梁善飞，郭丰，张勇刚，马冠钦，杨万里，王瑞平

【摘要】

中文摘要: 以某3缸增压直喷汽油机正时皮带怠速低频噪声为研究对象，通过试验锁定噪声源和噪声频段，并对该噪声产生机理进行分析。针对该噪声源和噪声频段，通过一维动力学仿真的方法来优化正时皮带系统的布置参数，寻找到降低该噪声的方法，并最终通过噪声-振动-平顺性（NVH）试验验证了提高皮带刚度和增加小惰轮的方案能够有效降低该噪声。 英文摘要: The low-frequency noise of the timing belt of a three-cylinder turbocharged direct injection gasoline engine at idle speed was studied. The noise source and noise frequency spectrum were derived by test. The mechanism of noise generation was also analyzed. According to the obtained noise source and spectrum, the layout parameters of the timing belt system were optimized by the one-dimensional dynamic simulation. The method to reduce the noise was worked out and verified by noise vibration and harshness test. It is to increase the stiffness of the timing belt and add an idler.

【论文集名称】

2019年

【会议名称】

《内燃机工程》

【下载次数】

0

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