摘要
车身多层阻尼结构的振动特性及隔吸声特性是影响车室空腔声响应的重要因素。用简化的车身模型研究车身多层结构对车内声压级的影响。通过这个模型,研究车室空腔声响应与阻尼结构之间的关系。优化阻尼层结构参数。
Vibration characteristics and sound insulation capability of muhilayer damping panels are very important factors which dominate acoustic response in the interior of automobile bodies. A simplified automobile body model is established to investigate the effects of multilayer panels on interior sound levels. The relation between the acoustic response of the interior cavity and the damping panels are studied. Acoustic - structural coupled sensitivity of the damping panels of automobile bodies is evaluated synthetically. The damping panel structure is optimized, and the interior sound level is improved.
出处
《噪声与振动控制》
CSCD
北大核心
2009年第1期54-57,64,共5页
Noise and Vibration Control
关键词
声学
阻尼
声响应
隔声
灵敏度分析
优化
acoustics
damping
acoustic response
insulation
sensitivity analysis
optimization
