知识与财富的链接
某产品的电池在地面试验中由于振动响应过大而出现故障.本文采有限元分析的方法对电池支架进行约束阻尼处理的优化设计,并进行试验验证.结果表明,采用约束阻尼技术后,电池的功率谱密度共振峰值放大倍数由未处理前的28倍下降到14倍,电池故障完全排除,验证了约束阻尼减振技术对此类板和薄壳等结构进行减振的有效性.
Battery failed to work through vibration test as the response exceeded its tolerance. By FEM method,
constrained damping technology was optimized to redesign the battery bracket, and then tests were performed. Results
show that the battery’s times of resonance apex of power spectrum density dropped from 28 to 14 after bracket was
treated by constrained damping layer, and the battery worked successfully, indicating the efficiency of constrained
damping technology when used to isolate vibration for structures such as board and shell.
