摘要
利用频谱分析和模态分析技术分析常用转速下车内噪声成分及车身各部分振动情况,确定阻尼片粘贴位置,并将条形阻尼结构应用于车内噪声控制。试验表明条形阻尼结构能有效抑制车辆行驶中的车身振动,降低车内噪声。
Spectrum analysis technique is used to analyze the component of internal noise of vehicles, and modal analysis is applied to analyze the vibration of vehicle＇ s body. The damping panels are applied to control the interior noise of the vehicle and their positions in the vehicle are determined. It is verified by experiment that damping panels can effectively inhibit vibration of the vehicle＇s body and reduce the internal noise in the vehicles.
出处
《噪声与振动控制》
CSCD
北大核心
2009年第4期82-84,共3页
Noise and Vibration Control
关键词
声学
噪声控制
阻尼
频谱分析
模态测试
acoustics
noise control
damping
spectrum analysis
modal test
