一种新的有限元建模与可视化方法

2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and Control Pub Date : 2012-12-08 DOI:10.1109/IMCCC.2012.346

Gang Han, Jinying Zhang, Baoliang Li, Jia Lu, Wenhua Dou

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引用次数: 3

摘要

超声换能器作为一种测量技术，在无损检测与评价和成像应用中受到越来越多的关注。了解超声波在流体和固体中的传播特性是非常重要的。有限单元法已广泛应用于求解波传播过程中的偏微分方程。由于COMSOL具有多物理场模块耦合和后处理简单的优点，本文采用了COMSOL。对瞬态波在不同介质(如压电固体、非压电固体和流体)中的传播特性进行了建模和模拟。可视化的波模证实了这种方法的效率和简单性。

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A Novel FEM Method of Modeling and Visualization

Ultrasonic transducer, as a measurement technique, gains more and more attention in Non-Destructive Testing and Evaluation (NDT&E) and imaging applications. It is important to know the propagation behaviors of ultrasonic waves in both of fluids and solids. Finite element method (FEM) has been widely used to solve partial differential equations (PDE) in wave propagation. In this paper, COMSOL is adopted due to its benefits in coupling of multiphysics modules and the simplicity in postprocessing. The properties of transient wave propagation in different kinds of media, such as piezoelectric solids, nonpiezoelectric solids and fluids, are modeled and simulated. The visualized wave modes confirmed the efficiency and simplicity of this approach.

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2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and Control

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