中东兰德酷路泽4000
摘; 要：某SUV在加速过程中当发动机转速在1880rpm时存在明显轰鸣声，该转速段附近为常用转速段，严重影响乘客主观感受及车辆品质，通过试验与仿真分析相结合的方法，从噪声源及传递路径（空气和结构方面）对轰鸣声产生的原因进行分析和验证，确认该轰鸣声受排气系统、车身侧围钣金件和后背门模态共同影响，综合考虑可实施性与成本，
逐一解决，达到消除轰鸣声的效果。通过试验与仿真分析，为低转速车内轰鸣声的解决提供实际的有限措施，具有较大的工程参考价值。
关键词：轰鸣声;排气系统;模态;动力吸振器
中图分类号：U467.5; ; 文獻标识码：A; ; ; ;文章编号：1005-2550余姚二手车（2019）03-0068-05
Abstract： When the engine of an SUV is speeding up at 1880 RPM， it will has obvious roar. The vicinity of the range of rotating speed is a common rotating speed range. This will seriously influence passengers’ subjective feelings and the quality of the car. Through the methods of the simulation and experiment， the causes of noise and validation can be analyzed and tested. Confirmed the roar mutual influenced by modal of Exhaust system of the vehicle， Sheet metal parts on the side of the body and the back door. Take a Comprehensive consideration of implementability and cost step by step科鲁兹改装轮毂>台铃电动车价格， eliminating roar can be achieved.
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