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复合管道轴对称导波改进半解析有限元建模 被引量：3

Improved semi-analytical finite element modeling of axisymmetric guided wave modes in composite pipes
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摘要 针对层状复合管道经典半解析有限元(SAFE)模型无法直接区分纵向模态导波和扭转模态导波的问题,在SAFE基本原理基础上结合纵向模态导波和扭转模态导波的力学特性,分别建立纵向模态导波和扭转模态导波的SAFE模型.该模型实现了纵向模态导波和扭转模态导波的单独计算,避免了复杂的导波模态区分过程,减少了SAFE模型的计算工作量,提高了计算效率.通过与基于全局矩阵法原理的PCdisp软件的计算结果比较,证明该SAFE模型具有良好的计算精度.利用所建的SAFE模型计算了环氧树脂钢管中纵向模态导波和扭转模态导波的传播特性. The traditional semi-analytical finite element（SAFE）models can not distinguish between longitudinal waves and torsional waves.The SAFE models of longitudinal waves and torsional waves were independently established based on basic SAFE principle combined with mechanical properties of longitudinal waves and torsional waves.The SAFE models respectively calculated longitudinal waves and torsional waves,avoided complex mode differentiation,reduced the computational complexity and improved the efficiency.The results of SAFE models were compared with PCdisp which is based on global matrix method to examine the accuracy of SAFE models.The examples of longitudinal waves and torsional waves propagating in epoxy-Fe-epoxy composite pipe were analyzed.
作者 胡剑虹 唐志峰 吕福在 潘晓弘 韩烨 姜晓勇
机构地区 浙江大学现代制造工程研究所 中国计量学院机电工程学院 浙江大学数字技术及仪器研究所 中石化长输油气管道检测有限公司 杭州浙达精益机电技术股份有限公司
出处 《浙江大学学报（工学版）》 EI CAS CSCD 北大核心 2015年第1期116-122,共7页 Journal of Zhejiang University：Engineering Science
基金 国家自然科学基金资助项目(51275454 61271084) 质检公益性行业科研专项资助项目(20140027)
关键词 轴对称模态导波 半解析有限元模型 环氧树脂钢管 axisymmetric guided wave modes semi-analytical finite element model epoxy-Fe-epoxy com-posite pipe
分类号 O347 [理学—固体力学]
  • 相关文献

参考文献12

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二级参考文献22

  • 1何存富,刘增华,郑璟瑜,吴斌,王秀彦.管道导波检测中传感器数量和频率特性研究[J].北京工业大学学报,2004,30(4):393-397. 被引量：26
  • 2他得安,王威琪,汪源源,余建国,刘镇清.管道导波检测中激发频率的选择及灵敏度分析[J].无损检测,2005,27(2):83-86. 被引量：13
  • 3刘增华,何存富,吴斌,杨士明,王秀彦.双层管结构中扭转模态传播特性的理论分析与实验研究[J].工程力学,2006,23(11):170-176. 被引量：3
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共引文献13

同被引文献19

引证文献3

二级引证文献3

浙江大学学报（工学版）
2015年 第1期

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