Experimental Damage Identification Using Modified Mode Shape Difference

• 作 者: Ahmed A. Elshafey H. Marzouk M
• 机 构: Civil Engineering Department,Department Civil Engineering,Department Naval Architecture
• 出 处: 船舶与海洋工程学报（英文版）
• 发表日期: 2004年期
• 关键词: mode shape damage detection damage location modal analysis
• 基金项目: Supported by PRAC,NSERC,and MITACS

An experimental program was undertaken to test the feasibility to detect the occurrence of structural damage using a modified mode shape difference technique.The vibration response of a steel beam fixed at one end and hinged at the other was obtained for the intact and damage conditions.Modal analysis was performed to extract the frequencies and mode shapes.The method shows a good potential in detection of occurrence and location of damage.