摘要
某车型的PT样车行驶过程中在特定转速出现车内轰鸣声的现象,针对该噪声现象进行了主观评价和声压、阶次、传递函数、模态等客观测试,找出了产生该问题的根源,并采取相应改进措施进行了效果验证。
A development model PT car in the process of moving in the fixed rpm occurs the strong-noise phenomenon of the inner car.Aiming at the noise phenomena to subjectively appreciation,and by the objective test of sound pressure,order,transfer function,modal to identify the source of the problem and take appropriate improvement measures to verify the effect.
出处
《汽车科技》
2013年第1期48-50,共3页
Auto Sci-Tech
关键词
NVH
噪声
声压
传递函数
NVH
noise
sound pressure
transfer function
