Spectrum Evaluation Method for Wrinkled Membranes
Spectrum Evaluation Method for Wrinkled Membranes
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DOI：
10.2514/1.7509
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发表时间：
2005
期刊：
影响因子：
2.5
通讯作者：
T. Iwasa;M. Jacobson;M. Natori
中科院分区：
文献类型：
--
作者：
T. Iwasa;M. Jacobson;M. Natori
提出了一种基于二维快速傅立叶变换的光谱评价方法，用于评价起皱薄膜的整体性能。该方法是针对方形皱膜进行的。研究了固定在三个角的正方形薄膜在剩余角面内剪力作用下的起皱现象。利用所提出的谱估计方法，给出了不同的结构尺度(与膜面积与膜厚度之比有关)和重力场对起皱薄膜的影响。通过比较谱估计方法和传统方法的结果，验证了该方法的分析结果。传统方法使用横截面变形和变形模式来评估包括皱纹区和松弛区在内的膜的行为。
A spectrum evaluation method using the two-dimensional fast Fourier transform is proposed for assessing overall behavior of wrinkled membranes. This method was carried out for a square wrinkled membrane. Wrinkling phenomena of the square membrane, held fixed at three corners and subjected to in-plane shear force at the remaining corner, are investigated. The effects of a varied structural scale, which is related to the ratio of membrane area to membrane thickness, and gravity field on the wrinkled membranes are shown using the proposed spectrum evaluation method. Analysis by this method has been verified by comparing the results of the spectrum evaluation method to that of the traditional methods, which uses cross-sectional deformations and deformation modes for assessing the behavior of the membranes including both wrinkled and slack regions.