Research on Impact Resistance and Optimization of Multilayer Honeycomb Spacer Ring under Pyrotechnic Impacts
With the rapid development of the aerospace industry,spacecraft requires higher performance of impact isolation structures.Honeycomb structures,known for their periodic topology and special folding mechanism,offer excellent impact resistance and are widely used in aerospace cushioning.This paper designs cushioning devices based on multilayer rectangular,triangular,and hexagonal honeycombs for pyrotechnic impact environments.First,the three honeycomb types are parametrically modeled,and their impact resistance are analyzed using LS-DYNA software.The impact mitigation efficiency of these configurations is compared.Additionally,the effects of honeycomb size and thickness on impact reduction performance are studied.Results indicate that multilayer rectangular honeycomb provides better impact reduction than traditional hexagonal honeycomb.Finally,impact tests show the error in impact response at typical positions is less than 2 dB compared with simulation results.
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