【摘要】 通常结构的位移模态和固有频率难以有效的反映结构是否损伤和损伤状况,应变模态能够更有效,更可靠的对结构损伤识别和定位。本文通过ANSYS对梁结构的不同损伤程度和不同的位置损伤工况的模拟仿真,进行结构损伤分析研究,最后通过前三阶应变模态振型结构损伤前后的比较,总结损伤结构的应变模态的变化规律,揭示应变模态对结构损伤的敏感性。更多还原

【Abstract】 Usually the structure of the displacement modal and natural frequency is difficult to effectively reflect the damage condition of the structure damage and,strain modal can be more effective,more reliable to identify and locate structure damage. In this paper,simulation beam damage location and damage degree with ANSYS of the structural damage identification were researched,through structural damage before and after the strain modal vibration mode comparison,the strain modal of the structural damage diagnosis rule was revealed,and the strain modal of the sensitivity of the scathe of the bridge was revealed.更多还原