A Study of the Transient Sound Radiated by Impacted Solid Bodies Based on the Boundary Element Method
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概要
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The analysis of problems concerning transient sounds radiated by impacted bodies using the boundary element method (BEM) is investigated, and a general-purpose analysis program which is valid for any type of sound source is developed. The Laplace transformation of the Helmholtz equation is employed in the formulation of the BEM. The analysis is first carried out in the Laplace domain by using the boundary input values obtained by a numerical Laplace transform. Then, results in the time domain are obtained by a numerical inverse Laplace transform. As an example of transient sound radiated by impacted bodies, the transient acoustic radiation emanating from a column and a cube impacted by a sphere are considered. The validity of these analytical results for time-dependent sound radiation is examined through comparison with the experimental results.
- 一般社団法人日本機械学会の論文
- 1996-06-15
著者
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Endo Mitsuru
Department Of Bioengineering And Robotics Tohoku University
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Endo Mitsuru
Department Of Mechano-aerospace Engineering Tokyo Institute Of Technology
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Ohyama Takeshi
Department Of Mechano-aerospace Engineering Tokyo Institute Of Technology
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Ohyama Takeshi
Department Of Chemistry Faculty Of Science Science University Of Tokyo
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NISHIGAKI Tsutomu
Department of Mechano-Aerospace Engineering, Tokyo Institute of Technology
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Nishigaki Tsutomu
Department Of Mechanical Sciences And Engineering Tokyo Institute Of Technology
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Nishigaki Tsutomu
Department Of Mechano-aerospace Engineering Tokyo Institute Of Technology
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