Revised finite sound ray integration mehtod based on kirchhoff's integral equation

概要

論文の詳細を見る
This thesis explains the calculation theory of a revised finite sound ray integration method and the algorithm based on the integration equation, which is obtained by the solution of kircchhoff, from the wave equation. It also explains the calculation of small rectangular space pulse response by using the revised finite sound ray integration method, and correspondence of the values with model test values. The theoretical equation which is the basis of this calculation method is the transformed equation of kirchhoff's integration equation, that is assuming a point source of sound without dimensions. In order to calculate this eqation, the integral domain on the boundray surface, which changes in accordance with the lapse of time, and the sound wave propagation distance, etc. have to be obtained. We, therefore, simulated the spherical progressive wave by utilizing a multiple number of sound rays, which were radiated from the sound source at equal solid angle, and then obtained the various necessary information for the calculation. Up to this time the said calculation method is progammed on the condition that the pursing sound rays are only mirror reflecting sound rays, and a small computer can be used for the calculation. When we measured the pulse response by using a 1/4 scale rectangular room model, which was composed of complete reflecting surfaces and a complete sound absorbing surface, and the results were compared with the calculation values by the revised finite sound ray integration method, we were able to obtain very reasonable results.
社団法人日本音響学会の論文

Revised finite sound ray integration mehtod based on kirchhoff's integral equation

スポンサーリンク

概要

著者

関連論文

スポンサーリンク