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  5. Research on Propagation of Guided Wave in High-speed Rail Axle and the Damage Detection

Research on Propagation of Guided Wave in High-speed Rail Axle and the Damage Detection

来源 :The 2nd International Conference on Structural Health Monito | 被引量 : 0次 | 上传用户：easychart
【摘 要】
：
In guided wave-based structural health monitoring technique,the influence of structural characteristics such as variable cross-section,large thickness and different degrees of impairments on propagati
【作 者】
：
QIU Jian-xi LI Fu-cai ZHOU Li-min 
【机 构】
：
State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai,China
【出 处】
：
The 2nd International Conference on Structural Health Monito
【发表日期】
：
2014年5期
【关键词】
：
guided wave variable cross-section structure fatigue crack damage detection 
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论文部分内容阅读
　　In guided wave-based structural health monitoring technique,the influence of structural characteristics such as variable cross-section,large thickness and different degrees of impairments on propagation of guided wave is crucial in the application of this technique on damage detection of high-speed railway axel.Propagation characteristics of guided wave in variable cross-section hollow cylinder-shape structure and interaction between damages and guided wave are investigated.New damage detection method through investigating structural circumferential displacement and difference of stresses is proposed.Moreover,the effects of damage depth on propagation of guided wave are studied.Effects of different degree damage on circular displacement and reflected wave are researched and summarized.
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