基于残余模态力的装备悬臂梁结构损伤诊断

针对装备悬臂梁结构损伤诊断问题，提出基于残余模态力的结构损伤诊断方法。定义残余模态力(残余模 态力向量)和结构单元损伤因子(结构单元损伤因子向量)的概念，分别应用于判断装备结构是否存在损伤以及指示损 伤单元的位置和程度，并分别进行3 种状态的仿真实验。实验结果证明：该方法可有效地识别装备悬臂梁结构的损 伤类型及其位置和程度等信息，对于装备悬臂梁结构诊断是科学有效的。

Damage Diagnosis of Equipment Cantilever Beam Based on Residual Modal Force

A structural damage diagnosis method based on residual modal force is proposed for the damage diagnosis of equipment cantilever beam structure. The concepts of residual modal force (residual modal force vector) and structural element damage factor (structural element damage factor vector) are defined, which are applied to judge whether the equipment structure is damaged and indicate the location and degree of the damaged element, and the simulation experiments of 3 states are carried out respectively. The experimental results show that the method can effectively identify the damage type, location and degree of the equipment cantilever beam structure, and is scientific and effective for the equipment cantilever beam structure diagnosis.