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SIMULATION EXPERIMENT STUDY ON A CANTILEVER BEAM BASED ON TRANSMISSIBILITY
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摘要: 为研究基于振动传递率的损伤识别方法的可行性,以一钢悬臂梁为例,进行了多种仿真试验,分别研究了振动传递率的可重复性、损伤敏感性和损伤位置敏感性。仿真试验结果显示:振动传递率不依赖于结构激励荷载;对损伤具有较强的敏感性;能识别结构损伤位置。相对于多位置损伤识别相比,其对于单位置损伤识别具有更好的效果。Abstract: For studying the feasibility of the damage identification method based on vibration transmissibility,various simulation experiments on a cantilever beam were done to study the repeatability,sensitivity for damage,and sensitivity for damage location.The results of the simulation experiments showed that the viration transmissibility was independent of the exciting load,sensitive to damage strongly,and can identify the damage locations.But in comparison with identifying several damage locations,the method could identify single damage location more effectively.
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Key words:
- cantilever beam /
- transmissibility /
- damage Identification
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