Modal density of thin composite cylindrical shells

被引：9
|
作者：
Florence, S. Josephine Kelvina [1 ]
Renji, K. [1 ]
机构：
[1] ISRO Satellite Ctr, Struct Grp, Bangalore 560017, Karnataka, India
来源：
JOURNAL OF SOUND AND VIBRATION | 2016年 / 365卷
关键词：
VIBRATION;
D O I：
10.1016/j.jsv.2015.11.030
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Modal density is an important parameter in Statistical Energy Analysis (SEA) based response estimation. Many space structures use composite cylinders. Modal densities of such structural elements are not reported. In this work an expression for modal density of composite cylindrical shells is derived. Its characteristics and sensitivity to various parameters are discussed. The frequency at which the modal density has a maximum is derived. Modal densities of typical composite cylinders are obtained. It is shown that computing modal density considering an equivalent isotropic cylinder can lead to significant errors. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：157 / 171
页数：15
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