摘要
研究了波纹管壳结构中的振动波。运用摄动方法与结构振动的波动方法得到了波纹管结构波动解的形式 ;在此基础上考虑了振动波的频散特性。结果表明 :摄动波是以传播波和衰减驻波的形式存在 ;研究了振动波通过圆柱壳 -波纹壳不连续截面时的传播特点 ,从频散特性角度对弯曲波传播进行了解释。
The vibraiton waves in cylindrical shell with sinusoidally wall are investigated.The multiple scales method and wave motion approach are applied in achieving wave solution.The wave dispersion behavior is also examined. The results show that the perturbing waves exist in the form of either propagating wave or evanescent standing wave. The characteristics of propagating wave through the section connecting circular cylindrical shell and perturbed shell are examined. The wave behavior in the perturbed region is explained from the wave motion viewpoint. The research on this subject presents a method for estimating the vibration noise in wall-perturbed shell.
出处
《振动工程学报》
EI
CSCD
2000年第4期567-576,共10页
Journal of Vibration Engineering
关键词
圆柱波纹管壳
振动噪声
管路系统
波纹管接头
circular cylindrical shell
vibraiton wave
energy flow
vibrational noise
