Research on Optimization Design of Shipborne Carbon Fiber Reinforced Polymer Frame Structure

Abstract

Display consoles are the core frame structure of the command and control system on the military combat unit, which can be called the “brain” of the equipment. With the great development of new research on materials and applications, using Carbon Fiber Reinforced Polymer (CFRP) instead of aluminum alloys to fabricate the display console frame structure has become an international hot point. However, whether the components obtained by CFRP can meet the requirements of complex working conditions, and whether the structural design is reasonable, are still existing problems. This study analyzed the stress distribution of the bottom frame structure of CFRP display console under impact and vibration conditions. The frame structure was optimized based on the stress distribution and topology. The results show that the maximum stress value of the frame structure under complex conditions was 16.97MPa, the maximum stress after optimization was 22.94MPa. The reduction of weight of this complex structure was 13%. The prototypes have passed the actual working condition test. This study shows that the route method based on impact stress to optimize the wall thickness of CFRP structures is feasible and effective.