板片空间结构设计中数值计算模型的研究

分析了板片空间结构体系中板与骨架的共同工作机理,将接触问题计算模型应用到共同工作问题的研究中.基于共同工作问题的数值模拟和分析,详尽分析了该结构体系中板与金属骨架之间的连接情况、接触状况和初始间隙等对结构的影响.数值计算结果与试验结果比较表明:本文所提出的考虑接触问题的计算模型能真实地反映板片空间结构中板与骨架之间的实际工作状态,是合理和可靠的.

Study on numerical computational modelling for sheet-space structure

The approach for the numerical computational modelling of the elastoplastic frictional contact problems is applied to the analysis of the interactive problem in the sheet space structure system. Based on the numerical calculations and analysis of the interactive problem, the influences of the tie condition, contact status and the clearance between the sheet and the skeleton on the sheet structure were analyzed thoroughly, and some important results were obtained. Th e computational results were also compared with the experimental data. It is shown that the numerical computational modeling proposed can accurately explain the actual conditions of the interaction between the sheet and the skeleton in the sheet space structure system.