Vibration and Acoustic Radiation of Stiffened Plates Subjected to In-Plane Forces

Author:

Sun Yonggan1ORCID

Affiliation:

1. School of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing 400074, China

Abstract

This study is devoted to vibration and acoustic radiation of stiffened plates in the presence of in-plane normal and shear loads using the finite element method. In structural modelling, the plate and stiffeners are treated as separate elements and the strain and kinetic energies of the stiffened plate with an elastic boundary are introduced. The results show good agreement with those obtained using other methods. Parametric studies show that in-plane normal forces have obvious influences on the acoustic radiation efficiency and the sound power level of the structure. Furthermore, the position of in-plane normal forces warrants attention; e.g., the farther the boundary in-plane normal forces from the boundary constraint are, the greater the effect on the acoustic performance is. However, in-plane edge shear loading has little influence on the acoustic performance of structures.

Funder

Chongqing Municipal Education Commission

Publisher

Hindawi Limited

Subject

Civil and Structural Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Mathematical Model for Plate Elastic Properties Studying Based on Its Amplitude-Frequency Characteristics;2023 IEEE XXVIII International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED);2023-09-11

2. Study on the Influence of the Internal Elastic Constraint Stiffness on the Vib-Acoustic Performance of a Coupled Plate-Cylindrical Shell System;Shock and Vibration;2023-07-24

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