...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Solids and Structures >Wave propagation in a fluid wedge over a solid half-space - Mesh-free analysis with experimental verification
【24h】

Wave propagation in a fluid wedge over a solid half-space - Mesh-free analysis with experimental verification

机译：波在固体半空间上的流体楔中传播-无网格分析和实验验证

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Interaction between a bounded ultrasonic beam and a liquid wedge over a solid half-space is studied. A semi-analytical technique called distributed point source method (DPSM) is adopted for modeling the ultrasonic field in a wedge shaped fluid structure over a solid half space. This study is important for analyzing the ultrasonic waves used for the non-destructive inspections of partially immersed structures. It is also useful for studying the effect of underwater ultrasonic or acoustic wave experiments on marine lives near the shore. The problem geometry considers a bounded acoustic beam striking a fluid-solid interface between a fluid wedge and a solid half-space at steady-state. Solution of this problem is beyond the scope of the currently available analytical methods when the beam is bounded. Only numerical method (boundary element method (BEM) or finite element method (FEM)) based packages (e. g. PZFlex) are in principle capable of modeling ultrasonic fields in such structures. At high frequencies FEM and BEM based packages require huge amount of computation memory and time for their executions that DPSM technique can avoid. Effect of the angle of strike and the fluid wedge angle variation on the wave propagation characteristics is studied. Theoretical predictions are compared with some experimental results.
机译：研究了有限的超声束与固体半空间上的液体楔之间的相互作用。采用一种称为分布点源法（DPSM）的半分析技术对固体半空间上的楔形流体结构中的超声场进行建模。这项研究对于分析用于部分浸入式结构的非破坏性检查的超声波非常重要。它对于研究水下超声波或声波实验对海岸附近海洋生物的影响也很有用。问题的几何形状考虑了有界声束在稳态时撞击流体楔和固体半空间之间的流体-固体界面。当束缚边界时，此问题的解决超出了当前可用分析方法的范围。原则上，仅基于数值方法（边界元方法（BEM）或有限元方法（FEM））的程序包（例如PZFlex）能够对此类结构中的超声场进行建模。在高频率下，基于FEM和BEM的程序包需要大量的计算内存和执行DPSM技术可以避免的时间。研究了冲击角和流体楔角变化对波传播特性的影响。将理论预测与一些实验结果进行了比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号