Strength analysis of antenna skeleton structure based on initial assembly stress damage

This article analyzes the iterative process and relationship between material elastic-plastic damage and elastic damage, and obtains the stress-strain formulas for adjacent elastic-plastic damage and adjacent elastic damage of materials. Further analysis was conducted on the process of elastic-plastic and elastic damage caused by assembly stress, and the superposition of assembly stress and working load deteriorated the bearing capacity of the mechanical system. Based on the implementation examples, the stress-strain of the antenna skeleton was calculated under three working conditions: impact load, displacement load, and displacement load combined with impact load. The calculation results indicate that adopting necessary optimization assembly methods can eliminate or reduce assembly gaps, effectively reducing harmful assembly stresses caused by displacement loads, making the stress after displacement loads superimposed with impact loads less than the yield limit, thereby avoiding plastic damage and reducing elastic-plastic damage.