Abstract

This study presents the design and performance evaluation of a hollow-type passive shock isolator for mitigating high-mass impact. The properties of the hyperelastic material were characterized through static tests and incorporated into a finite element model for design optimization. The isolator reduces shock transmission in both vertical and horizontal directions, ensuring the structural safety of mounted equipment in modern weapon systems. Rubber, a typical hyperelastic material, exhibits strong elasticity but requires careful design to withstand repeated loads and high stresses without degradation. A prototype isolator was fabricated, and its shock absorption performance was validated by impact load testing. The results confirm that the proposed design effectively attenuates impact forces, demonstrating a strong potential for practical applications.

Keywords: hyper-elastic material;large deformation;passive shock isolator;numerical study;material property;impact response