• 论文 •

高精度面板成形的贴模性研究

1. 北京航空航天大学 机械工程及自动化学院
• 收稿日期:1998-05-06 发布日期:2010-11-19
• 作者简介:男 28岁 博士生 100083 北京
• 基金资助:

国家自然科学基金(59475051)资助项目

Research on Fitability in Precise Forming of Reflector Panels

Chen Xiao, Zhou Xianbin, Chang Hesheng

1. Beijing University of Aeronautics and Astronautics,School of Mechanical Engineering and Automation
• Received:1998-05-06 Published:2010-11-19

Abstract: In order to investigate the fitability in superprecise forming of double curvature panel based on "nails die and vacuum", the approximate generalized Fourier series solution is suggested for the bending problem of the rectangular thin plate supported at arbitrary points with large deflection. The solution is derived by means of the incremental method of load and displacement constraint, which can get the constrained force at the same time for the further iteration of contact state. It is applied to analyze the pattern of the part sinking. The computational results of the plates with several kinds of width and thickness are compared with the experiment. It shows that the accuracy is satisfying well. Finally the proximate range of the critical plate width under varied pressure is suggested and moreover the relevant rules on reduction of errors in fitability are proposed.