摘要
将梁结构剪切中性轴的概念推广至约束阻尼板结构中,提出了剪切中性面的概念。基于变形能原理,对板类约束阻尼结构的结构损耗因子进行层间厚度参数优化理论分析,并进行试验验证。结果表明,阻尼层较薄时,阻尼层厚度和约束层厚度的优化理论分析结果与试验数据变化趋势一致,表明了理论分析方法的合理性。
The concept of ＂Shear Neutral Area＂ was proposed for constrained damping plate compared to ＂Shear Neutral Axis＂ for beam. Based on Deformed Energy Principle, structural loss factor was analyzed by optimizing the thickness of damping layer, and then tests were executed. Results show when damping layer is thin, the thickness of damping layer and constrained layer are consistent to actual measurement, indicating the rationality of the analysis method.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2013年第1期30-34,38,共6页
Aerospace Materials & Technology
关键词
约束阻尼结构
阻尼板
结构损耗因子
优化
Constrained damping structure, Damping plate, Structural loss factor, Optimization
