외부 음향과 구조의 연동 현상 고려한 근사 모델Approximation Models for Structure-External Acoustic Interaction

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Many approximate models for interaction between a flexible structure and an infinite external acoustic medium have been developed for a long time. Among them, Doubly Asymptotic Approximations (DAAs) are very well known approximations. But, it has shortcomings in intermediate frequency range and can't fully describe the acoustic medium. So, this paper presents the modified approximation by applying the retarded and advanced potentials to Kirchhoff's formula. It describes the external acoustic medium more in detail and shows a good result in early time transient responses when it was applied to a spherical shell. Through a spherical shell interacting with external acoustic medium, the transient responses for the proposed model is compared to Huang's exact solution and DAA2.
Publisher
한국소음진동공학회
Issue Date
2007-05-10
Language
KOR
Citation

한국소음진동공학회 2007년 춘계학술대회, v.7, pp.1191 - 1195

URI
http://hdl.handle.net/10203/163138
Appears in Collection
ME-Conference Papers(학술회의논문)ME-Conference Papers(학술회의논문)
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