纤维束张紧力缠绕复合材料飞轮初应力的三维数值分析

秦勇; 夏源明; 毛天祥

纤维束张紧力缠绕复合材料飞轮初应力的三维数值分析

1.
中国科技大学力学和机械工程系, 中国科技大学中科院材料力学行为和设计重点实验室, 合肥 230027;
2.
中国科学院力学研究所, 北京 100080

基金项目: 国家自然科学基金项目(10172085)

详细信息

通讯作者:
夏源明,教授,博士生导师,主要从事冲击动力学、复合材料力学研究 E-mail:ymxia@ustc.edu.cn

中图分类号: TB330.1
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出版历程
- 收稿日期: 2004-09-05
- 修回日期: 2004-12-06
- 刊出日期: 2005-08-14

3D NUMERICAL ANALYSIS OF INITIAL STRESS OF COMPOSITEFLYWHEEL FABRICATED BY FILAMENT TENSION WINDING

1.
Department of Modern Mechanics, University of Science and Technology of China, Key Laboratory of Mechanical Behavior and Design of Materials, USTC, ASC, Hefei 230027, China;
2.
Institute of Mechanics, Academy of Science of China, Beijing 100080, China

摘要

摘要: 利用平面应力型全弹性模型的思想(即将纤维束张紧力缠绕看成多层复合材料薄环连续过盈装配的过程) , 建立了三维纤维束张紧力缠绕复合材料飞轮初应力分析模型, 并给出了基于面-面接触算法求解张紧力缠绕复合材料飞轮初应力的三维数值方法。算例分析表明, 三维数值分析得到的飞轮的环向初应力及径向初始压应力(数值) 均略低于平面应力模型的结果, 且这种差距随着飞轮轴向长度的增加而缓慢增大; 三维分析证实了平面应力模型关于张紧力缠绕复合材料飞轮的初应力分析有足够的精度。最后给出了三维模型轴向效应的表征方法。
- 复合材料飞轮 /
- 张紧力缠绕 /
- 初应力 /
- 三维分析
Abstract: A 3D initial st ress analysis model of composite flywheel fabricated by filament tension winding was putforward by using the idea of the former plane st ress full elastic model. Based on the arithmetic of face to face contact , a 3D numerical method of calculating the initial st ress was proposed for composite in tension winding. The result s show that the numerical values of hoop initial st ress and radial initial st ress calculated by the 3D model are allsmaller than those obtained with the plane st ress model , and the difference increases slowly with the increase of theaxial length of the flywheel. The 3D analysis confirms that the plane st ress full elastic model has enough calculationprecision. The characterization and calculation method of the axial length effect of the 3D model is established.
- composite flywheel /
- tension winding /
- initial st ress /
- 3D analysis