复合材料板弯扭耦合特性数值模拟

doi:10.3969/j.issn.1000-1565.2021.03.002

河北大学学报(自然科学版) ›› 2021, Vol. 41 ›› Issue (3): 231-237.DOI: 10.3969/j.issn.1000-1565.2021.03.002

复合材料板弯扭耦合特性数值模拟

张颖^1,2,安利强¹,王璋奇¹

收稿日期:2020-10-01 发布日期:2021-05-28
通讯作者: 安利强(1974—)
作者简介:张颖(1981—),女,河北晋州人,河北大学讲师,华北电力大学在读博士,主要从事风力发电机叶片振动特性研究.
E-mail:hbuzy@163.com
基金资助:
国家自然科学基金资助项目(51675179);中央高校基本科研业务费专项资金资助项目(2019QN133);河北省高等学校科学技术研究项目(QN2021025)

Numerical simulation of bend-twist coupling properties of laminate plates

ZHANG Ying^1,2, AN Liqiang¹, WANG Zhangqi¹

1.School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China; 2.College of Civil Engineering and Architecture, Hebei University, Baoding 071002, China

Received:2020-10-01 Published:2021-05-28

摘要/Abstract

摘要： 为研究复合材料风机叶片弯扭耦合特性,将风机叶片简化为对称非均匀复合材料层合板,研究不同的耦合区域对弯扭耦合效应的影响.在复合材料层合板不同区域对称铺设相同纤维角度的增强板,分析在集中静力荷载作用下,层合板的静态弯扭耦合特性;结合模态分析方法,利用模态置信准则(MAC),定量分析不同位置耦合层合板的弯扭耦合动态效应.结果表明,在低阶模态时,中部区域耦合板耦合效果明显,端部耦合板在高阶模态时弯扭耦合效果更明显.

关键词: 层合板, 模态特性, 弯扭耦合, 模态识别矩阵

Abstract: In order to analyze the effect of bend twist coupling(BTC)of large wind turbine blade, the blade was simplified to a symmetric un-uniform laminate plates, the influence of coupling area on bend-twist coupling effect was studied by numerical analysis method. By introducing symmetric off-axis orientations in different locations of the five plates, the static deformations to perform the coupling feature were analyzed under the concentrated force. A new method was proposed in this paper to quantitatively describe the bending-torsional coupling performance of laminates using modal assurance criterior(MAC). The results show that coupling effect of laminates coupled in the central region were significant at low-order vibrations, while the coupling effect of laminates coupled near the end was more obvious at higher-order modes.

Key words: laminate plate, modal characteristic, bend twist coupling, modal identification matrix

中图分类号:

TH213.3

张颖,安利强,王璋奇. 复合材料板弯扭耦合特性数值模拟[J]. 河北大学学报(自然科学版), 2021, 41(3): 231-237.

ZHANG Ying, AN Liqiang, WANG Zhangqi. Numerical simulation of bend-twist coupling properties of laminate plates[J]. Journal of Hebei University(Natural Science Edition), 2021, 41(3): 231-237.

参考文献

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复合材料板弯扭耦合特性数值模拟

Numerical simulation of bend-twist coupling properties of laminate plates

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