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本文分析了曲率模态用于桥梁状态监测的可行性 ,并进行了有限元验证。结果表明 ,曲率模态对故障较为敏感 ,能够反映桥梁的局部状态变化 ,可以用来检测损伤位置及损伤程度 ,且高阶的曲率模态对故障的敏感性要优于低阶的曲率模态。
In this paper, the feasibility of using curvature modalities for bridge condition monitoring is analyzed and verified by finite element method. The results show that the curvature modal is more sensitive to failure and can reflect the local state changes of the bridge. It can be used to detect the damage location and location of damage, and the sensitivity of high-order curvature modes to faults is better than the low-order curvature modes .