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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：船舶工程学院
学科：船舶与海洋结构物设计制造. 水声工程
办公地点：综合实验2号楼507房间
联系方式：shengli [at] dlut.edu.cn；0411-84706702；116024 辽宁省大连市凌工路2号大连理工大学船舶工程学院
Improved Integral Formulation for Acoustic Radiation Using Integral Equation of Frequency Averaged Quadratic Pressure
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论文类型：期刊论文
发表时间：2017-03-01
发表刊物：JOURNAL OF COMPUTATIONAL ACOUSTICS
收录刊物：SCIE、Scopus
卷号：25
期号：1
ISSN号：0218-396X
关键字：FAQP; CHIEF; irregular frequency; energy method
摘要：This paper is concerned with the problem of obtaining a unique solution for radiation at irregular frequencies when an integral equation of frequency averaged quadratic pressure (FAQP) is used to get robust predictions at medium and high frequencies. It is proved that there is no unique solution of the integral equation of FAQP at irregular frequencies, and existence and uniqueness of solutions under four types of boundary conditions are discussed. A combined energy boundary integral equation formulation (CEBIEF) is presented and proves to be efficient to overcome the nonuniqueness of the integral equation of FAQP. The numerical examples are given to demonstrate the versatility of the CEBIEF method with a proposed function correctly indicating a solution.