【作者】 张肃； 陈南； 张建润；

【Author】 Zhang Su Chen Nan Zhang Jianrun

【机构】 东南大学机械工程学院；

【摘要】 采用Daubechies小波基,利用Wavelet-Galerkin方法求解了声固耦合场,推导了关联系数的计算方法并给出了Daubechies小波在求解声固耦合场的多分辨分析格式。利用上述方法,我们对一类似轿车车身的复杂封闭空腔,在20～250Hz频段内进行声固耦合场预报,并将计算值和有限元法计算值进行比较。结果说明该方法在分析声固耦合场方面是有效的。更多还原

【Abstract】 This paper shows a new method for solving vibro-acoustic coupling field in complex enclosures based on wavelet-galerkin method.Then we give an example of a car-like cavity and applied the method above to it to get the distribution of the pressure in the cavity at the frequency between 20Hz and 250Hz.In order to show the validity of the new method,an FEA is carried out and the result demonstrate that the new method is efficient for solving the vibro-acoustic coupling problems in irregular enclosure.更多还原