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Author:

刘增华 (刘增华.) (Scholars:刘增华) | 曹丽华 (曹丽华.) | 冯雪健 (冯雪健.) | 何存富 (何存富.) (Scholars:何存富) | 吴斌 (吴斌.)

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CQVIP

Abstract:

运用有限元方法,分析了激光参量和铝板参量对铝板中激光激励Lamb波的影响。通过建立轴对称的激光辐射模型,计算出不同激光能量下的瞬态温度场分布。研究结果表明,激光能量过高会使铝板表面损伤,应控制激光能量,使其低于材料损伤阈值。随后固定激光能量,改变铝板板厚和激光光斑半径的大小,发现光斑半径减小时,Lamb波激发率提高,频带变宽,所含的频谱成分更丰富。

Keyword:

Lamb波 铝板 激光 频谱 有限元

Author Community:

  • [ 1 ] 北京工业大学机械工程与应用电子技术学院

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Source :

无损检测

Year: 2017

Issue: 07

Volume: 39

Page: 12-17

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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