| 纤维束张紧力缠绕复合材料飞轮的预应力简化分析 |
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| 引用本文： | 秦勇,夏源明,毛天祥.纤维束张紧力缠绕复合材料飞轮的预应力简化分析[J].复合材料学报,2003,20(6):87-91. |
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| 作者姓名： | 秦勇 夏源明 毛天祥 |
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| 作者单位： | 1. 中国科学技术大学,力学与机械工程系,中国科学院中国科学技术大学材料,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 |
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| 基金项目： | 国家自然科学基金资助项目(10172085) |
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| 摘 要： | 在纤维束缠绕时施加张紧力,使得固化成型后的飞轮内部形成一定的预加径向压应力,这是提高飞轮径向强度的有效方法之一。基于过盈配合的思想建立了计算张紧力缠绕导致的复合材料飞轮内部预应力和变形的简化模型和方法。通过算例分析发现:等张力缠绕产生的环向应力在半径方向上先减小后增大,径向压应力不断变小;变张力缠绕过程中,张紧力由小逐渐变大时,飞轮的径向压应力增大,径向强度提高;飞轮设计中仅仅依靠张紧力缠绕是不够的,还必须和固化成型后的厚壁筒之间的过盈套装一起来设计合理的径向预加压应力。
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| 关 键 词： | 复合材料飞轮 张紧力 缠绕 过盈配合 径向强度 |
| 文章编号： | 1000-3851(2003)06-0087-05 |
| 收稿时间： | 2002-08-17 |
| 修稿时间： | 2002年8月17日 |
SIMPLIFIED INITIAL STRESS ANALYSIS OF COMPOSITE FLYWHEEL IN TENSION WINDING |
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| QIN Yong,XIA Yuanming,MAO Tianxiang.SIMPLIFIED INITIAL STRESS ANALYSIS OF COMPOSITE FLYWHEEL IN TENSION WINDING[J].Acta Materiae Compositae Sinica,2003,20(6):87-91. |
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| Authors: | QIN Yong XIA Yuanming MAO Tianxiang |
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| Affiliation: | 1. Dept. 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 |
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| Abstract: | The method of tension winding of fiber bundle is an effective way to improve the radial strength of flywheels. An approach of calculating the initial stress and deformation in tension winding according to misfit is advanced. The results show that the hoop stress decreases firstly and then increases while the radial compression stress decreases all the while in the qually winding tension. While in changed winding tension which is enhanced from lower to higher levels, the radial compression stress can be increased. It is not sufficient to use tension winding only in flywheel design. The tension winding and process of pressfit should be used together to design the rational initial radial compression stress. |
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| Keywords: | composite flywheel tension winding misfit radial strength |
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