When people evaluate the engine NVH, they are not only mentioning whether the engine is loud or not, they say that is noisy or quiet. The difference between these two comments is the way they quantify the engine NVH, from the noise level or the sound quality. Lots of engineers used objective tools to quantify engine sound quality performance for years. In this paper, we would like to propose a novel sound quality matrix for the diesel engine which includes loudness, sharpness, mid-frequency, and high-frequency knocking parameters to perform the sound quality evaluation. In addition, an application case is described in this paper to demonstrate the usage of the new matrix.
Sound Quality Evaluation Metrics on Diesel Engines
Sae Technical Papers
Noise and Vibration Conference & Exhibition ; 2023
08.05.2023
Aufsatz (Konferenz)
Englisch
Sound Quality Metric for Diesel Engines
SAE Technical Papers | 1999
|Sound quality metric for diesel engines
Kraftfahrwesen | 1999
|An Approach to Improvement of Diesel Engine Sound Using Sound Quality Metrics Mapping
British Library Online Contents | 2012
|Sound design on turbocharged diesel engines
Kraftfahrwesen | 2007
|