某乘用SUV车型整车NVH性能试验研究

Experimental Study on NVH Performance of a Passenger Car

NVH性能是SUV车型重要的性能构成,较低的车内振动水平及良好的声品质是SUV车型NVH性能设计的必然要求,文章针对某自主开发SUV和竞品SUV两款车型,开展了加速工况80 km/h下的车内振动对标分析及声压对标分析,同时开展了巡航工况下的二者的车内振动与声品质对比分析,试验结果表明,两款SUV车型NVH性能满足目标要求。

NVH performance is an important performance component of SUV.Low interior vibration level and good sound quality are the inevitable requirements of NVH performance design of SUV.Aiming at a self-developed SUV and a competitive SUV,this paper carries out the interior vibration benchmarking analysis and sound pressure benchmarking analysis under the acceleration condition of 80 km/h,and carries out the interior vibration and sound quality benchmarking analysis under the cruise condition.The test results show that the NVH performance of the two SUVs meets the target requirements.