YANG Fuqin, DING Zhongmin, WANG Peichao, CHANG Degong

 

(College of Electromechanical Engineering, Qingdao University 

of Science and Technology, Qingdao 266061, China)

 

 

Abstract: Aiming at the direct effect of family refuge chamber cabin′s antiseismic performance on the structural stability and safety of the trapped inside, transient dynamic analysis of the cabin was analyzed by ANSYS Workbench finite element software based on the trait of seismic load. According to the displacement nephogram of the cabin, the maximum displacement and its response time was analyzed which could verify if the cabin meet the need of design. Further the weak part of cabin was found and the suggestion for improvement was adopted. The cabin thickness and the stiffener sizes were chosen as variables. The quality, the maximum stress and the maximum total deformation were chosen as optimization objective. So the multiobjective optimization model was built. Finally the cabin was optimized by Pro/E and AWE cosimulation optimization and optimized structure was analyzed again by transient dynamic analysis. The analyzing results indicate that both the strength and stiffness of the optimized structure are improved effectively. The research is valuable and helpful for the rescue capsule design and the antiimpact ability evaluation.

 

Key words: family refuge chamber; seismic load; transient dynamic analysis; structural optimization