Applications of matched-field processing to structural vibration problems
Applications of matched-field processing to structural vibration problems
复制标题
匹配场处理在结构振动问题中的应用
DOI：
10.1121/1.415746
复制
发表时间：
1996
影响因子：
2.4
通讯作者：
W. Kuperman
中科院分区：
文献类型：
--
作者：
G. Turek;W. Kuperman
匹配场处理（MFP）是一种广义的阵列处理方法，用于海洋声学中声源定位。它是基于比较数据与解决方案的波动方程使用分类的线性和非线性方法。MFP技术的适用性，以本地化的结构中的振动源进行了探讨，通过模拟，从一个相对简单的问题，本地化的一个简单的支持横向振动梁的点力。巴特利特，最小方差（以及这两个的特征向量版本），和匹配的模态处理器。在所有情况下，均实现了定位。为了确定MFP方法是否仍然可以定位振动源，而无需对额外的结构复杂性进行全面详细的建模，增加了弹簧约束等额外的复杂性。并给出了在无损检测中的应用。
Matched-field processing (MFP) is a generalized procedure of array processing used in ocean acoustics to localize sources. It is based on comparing data with solutions to the wave equation using an assortment of linear and nonlinear methods. The applicability of MFP techniques to localize sources of vibration in structures is explored through simulations, starting with the relatively simple problem of localizing a point force on a simply supported laterally vibrating beam. The Bartlett, minimum variance (as well as the eigenvector versions of these two), and a matched modal processor are used. In all cases localization was achieved. Additional complications such as spring constraints were added in order to determine whether the MFP methods can still localize sources of vibrations without full detailed modeling of additional structural complexity. An application to nondestructive testing is also presented.