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Author:

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

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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:

铝板 激光 Lamb波 频谱 有限元

Author Community:

  • [ 1 ] [刘增华]北京工业大学
  • [ 2 ] [曹丽华]北京工业大学
  • [ 3 ] [冯雪健]北京工业大学
  • [ 4 ] [何存富]北京工业大学
  • [ 5 ] [吴斌]北京工业大学

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Source :

无损检测

ISSN: 1000-6656

Year: 2017

Issue: 7

Volume: 39

Page: 12-17

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 2

Chinese Cited Count:

30 Days PV: 1

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