This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of an Engine Noise Evaluation Meter
Annotation ability available
Sector:
Language:
English
Abstract
A new noise evaluation meter has been developed, which provides a new index for the noisiness of idling engines.
In this research, auditory sensations of motorcycle engine noises have been analyzed using multidimensional scaling techniques. As a result, it has been found that the principal hearing factors are loudness, impulsiveness, and frequency characteristics of noise. These factors are quantified with an A-weighted sound level, a fluctuation level, and a high frequency level, respectively.
An engine noise evaluation meter has been made, on the assumption that a total evaluation level is obtained by a linear combination of the physical quantities. The functions of the meter are to measure the physical quantities of noise, to calculate the total evaluation level, and to indicate the results. Then, actual engine noises have been evaluated by the meter, and there is a high correlation between the sensory evaluation values and the total evaluation levels.
Authors
Citation
Maeda, O., Maekawa, Y., and Nomura, K., "Development of an Engine Noise Evaluation Meter," SAE Technical Paper 870965, 1987, https://doi.org/10.4271/870965.Also In
References
- ISO Guide to International Standards on the Measurement of Airborne Acoustical Noise and Evaluation of its Effects on Human Beings
- Hassal J. R. Zaveri K. Acoustic Noise Measurements, B & K, Naerum 1979
- Usami I. Okada M. Development of Inspection Instrument for Tappet Clicks, Toyota Engineering 27 4 1978
- Misumi M. Kawasaki K, Evaluation method of impulsive engine noise JSAE Paper 822 B51 1982
- Torgerson W. S. Theory and Methods of Scaling Wiley New York 1958
- Hayashi C. Akuto H. Multidimensional Scaling Techniques Science Tokyo 1976
- Young G. Householder A. S. Discussion of a Set of Points in Terms of Their Mutual Distances Psychometrika 3 1 1938