当地峰值搜索方法解决羊羔波的分散方程的分层结构和应用程序的应用
Jiayuan Gong1,2,3, Hongyang Chen4
1Harbin Engineering University, Harbin 150001, China.
Sensors (Basel, Switzerland)
|December 9, 2023
概括
一种新的局部峰值搜索 (LPS) 方法有效地解决了层层结构的Lamb波散射方程. 这种技术增强了用于诸如水下结构健康监测等应用的声学分析.
科学领域:
- 声学 声学 在声学方面
- 固体力学 固体力学是什么
- 波浪传播 波浪传播
背景情况:
- 研究层结构的声学散射需要解决复杂的Lamb波散射方程.
- 传统的根寻找方法往往无法完全解决这些方程.
研究的目的:
- 引入一种新且有效的Local Peaks Search (LPS) 方法来解决Lamb波散散方程.
- 为了克服传统的根源寻找技术的局限性.
主要方法:
- 定义了分散函数及其反向函数,以将根转化为局部峰值.
- 采用全球直接搜索和穆勒方法进行本地峰值识别和精细化.
- 采用了具有10^-16的容错率的等级模式,以获得高精度.
主要成果:
- 验证了LPS方法的准确性与弹性板的两截法.
- 分析了声回声结构,并从数值上推导出了关键角度.
- 证实弹性散射波组件是时间角度分析的关键特征.
结论:
- 局部峰值搜索 (LPS) 方法为Lamb波散射方程提供了准确而强大的解决方案.
- 这些发现支持LPS在非破坏性测试和水下结构健康监测中的应用.
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