Development of Exhaust System Radiation Noise Simulation Technology using Exhaust Pulsation
排気脈動による排気系放射音予測技術の開発
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20054181
- Paper/Info type
- JSAE Transaction
Vol.36 No.2
- Pages
- 71-76(Total 6 p)
- Date of publication
- Mar 2005
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | Research Paper |
| Author(J) | 1) 桜井 雅人, 2) 中川 博史, 3) 吉本 秀之 |
| Author(E) | 1) Masato Sakurai, 2) Hiroshi Nakagawa, 3) Hideyuki Yoshimoto |
| Affiliation(J) | 1) 本田技術研究所, 2) 本田技術研究所, 3) 本田技術研究所 |
| Abstract(J) | 排気放射音を予測するに当り、排気脈動流れの圧力、速度の計測による定量的な現象把握を実施した。更にその境界条件を使い放射音の予測技術を構築した。計算モデルの境界条件に実測値を与えることにより精度良く排気からの放射音レベルが予測でき、その原因となる部位や発生メカニズムをとらえることができた。 Translation |
| Abstract(E) | The purpose of this paper is to propose the simulation method in order to predict exhaust radiation noise. This newly developed method predicts the radiation noise in a sound field located away from the vibrating surface of structure by coupling calculation between fluid exhaust gas and exhaust parts. By applying measurement values to boundary conditions, accurate radiation noise from the exhaust system is obtained, and the noise causing parts and the mechanism are clarified. The method enables the investigation of exhaust radiation noise in an early development stage. Also, the accuracy of the measurement values used in the boundary conditions is improved by introducing semiconductor pressure sensors and a laser doppler velocimeter. Furthermore, the existence of a shock wave in the exhaust pulsation is observed from the measurement results. |
