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力学与实践 ›› 2006, Vol. 28 ›› Issue (6): 0-0.doi: 10.6052/1000-0992-2005-484

• 应用研究 •    

空间薄膜结构的褶皱形变预测

王长国 杜星文 万志敏   

  1. 哈尔滨工业大学,复合材料与结构研究所,黑龙江 哈尔滨工业大学复合材料研究所 哈尔滨工业大学,复合材料与结构研究所,黑龙江
  • 收稿日期:2005-12-08 修回日期:1900-01-01 出版日期:2006-12-10 发布日期:2006-12-10

PREDICTION OF WRINKLE DEFORMATIONS IN THE SPACE MEMBRANE STRUCTURES

  • Received:2005-12-08 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10

摘要: 空间充气结构技术是一项全新的空间结构构建技术,基于该技术的空间充气结构是未来空 间任务的主要需求对象. 该结构主要由薄膜构成,因此结构形面精度的保持是关键问题. 褶 皱是薄膜特有的现象,它的存在会严重影响结构形面精度,因此进行褶皱研究很有必要. 根据屈曲理论联合薄膜褶皱的实际构型建立了薄膜结构褶皱的预测模型,分析了矩形平面 薄膜受面内水平剪切情况下的褶皱,得到了褶皱幅度和褶皱波长以及薄膜结构产生褶皱时的 临界压缩应力. 通过与已有文献结果及本文实验结果的比较验证了该分析方法的有效性 和结果的正确性.

关键词: 空间充气结构, 形面精度, 薄膜, 褶皱, 屈曲

Abstract: construction technology and is the main demanding object in the future space activities. The inflatable structure is mainly made up of membrane; therefore, the maintenance of the structural surface accuracy is one of the most important problems. Wrinkling is the unique characteristic of the flexible membranes, and the wrinkles degrade the surface accuracy and the structural performance, so, the study on wrinkles in membrane structures is desirable and essential. In this paper, a prediction model of wrinkles is proposed, based on the buckling theory, and the wrinkles, including the wrinkle amplitude, wrinkle wavelength and the critical compressive stress, in a rectangular membrane subjected to in-plane horizontal shearing loads are predicted using the method proposed in the present paper. The predicted results show good agreement with our recent experiments and the reported data.

Key words: space inflatable structure, surface accuracy, membrane,