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  • Summary & Details

Study on The Evaluation Method of Piston Slap Using Engine Background Noise

エンジン背景音に基づくピストン打音評価手法の検討

Detailed Information

Category(J)論文

Translation

Category(E)Paper
Author(J)1) 中西 潤二郎, 2) 森 恒寛, 3) 菊池 正和, 4) 山本 彩斗, 5) 松岡 和洋, 6) 野中 康宏
Author(E)1) Junjiro Nakanishi, 2) Tsunehiro Mori, 3) Masakazu Kikuchi, 4) Ayato Yamamoto, 5) Kazuhiro Matsuoka, 6) Yasuhiro Nonaka
Affiliation(J)1) マツダ(株), 2) マツダ(株), 3) マツダ(株), 4) マツダ(株), 5) マツダ(株), 6) マツダ(株)
Abstract(J)ピストン打音は心地よいエンジン音を阻害するため、予測手法の精度向上が求められている。本研究では、従来の運動エネルギーやブロック振動では聴感評価と一致しない課題に対し、ブロック振動と背景音から飛び出し量を定量化する手法を提案し、聴感との高い相関を確認。新規開発エンジンにおける打音予測を可能とした。

Translation

Abstract(E)Previous piston slap noise predictions using simulation models evaluated indicators such as the piston's kinetic energy and the cylinder block's wall vibrations, but these have not always aligned with auditory evaluations. In this study, we quantified the exceedance value using cylinder block vibrations and engine background noise to establish an effective detection method for piston slap based on a predictive model. As a result, a good correlation with auditory evaluations was confirmed. Consequently, this approach enabled the prediction of piston slap noise in newly developed engines.

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