Investigating impact of motor oil quality on vehicles engine induced noise level
Introduction: Vehicle engine id one of the main sources of noise which its level is influenced by various parameters. The aim of this study was to investigate the impact of motor oils quality before and after oil change on the variability of vehicle engine induced noise level. In this study it is tr...
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Tehran University of Medical Sciences
2015-09-01
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doaj-2c635829ffa944489e9258b0c4f5f0202021-09-02T14:30:21ZfasTehran University of Medical Sciencesبهداشت و ایمنی کار2251-807X2251-807X2015-09-01532128Investigating impact of motor oil quality on vehicles engine induced noise level I. Arefian0 H. Asady1 M. R. Monazam Esmaielpour2 Z. zolghadr 3. Zarif Yeganeh4 BSc, Department of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Professor, Department of Occupational Health Engineering, Faculty of Public Health, University of Medical Sciences, Tehran, Iran BSc, Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. PharmD-MPH Student of School of Public Health, Tehran University of Medical Sciences and Health Services, Tehran, Iran. BSc, Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Introduction: Vehicle engine id one of the main sources of noise which its level is influenced by various parameters. The aim of this study was to investigate the impact of motor oils quality before and after oil change on the variability of vehicle engine induced noise level. In this study it is tried to follow-up the efficacy of motor oil quality on engines sound level. Material and Method: First, engine noise of 94 vehicles were recorded for 30 seconds before and after oil change and all the vehicles technical information including mileage, type of motor oil, and type of vehicle were registered. Following, the recorded noises were calibrated in semi-anechoic chamber and the sound pressure levels were measured with A and C-weighting network and main octav bands, using a sound level meters. The obtained results analyzed using SPSS software version 17. Results: The effects of motor oil quality on different noise levels of engines were determined and a significant reduction in noise level of vehicles engine was observed. Investigation of the relationship between mileage and motor oil quality on various engines sound level manifested that vehicles with mileage ranged 100000-150000 miles had significant reduction in their sound pressure levels in comparison with other vehicles. Conclusion: The results revealed that engine oil is among factors reducing the vehicle engine induced noise level. Moreover, the engine oil type and the vehicle mileage are key variables which determine the impact of engine oil quality on reduction of the sound level of vehicles engine. http://jhsw.tums.ac.ir/browse.php?a_id=5300&slc_lang=en&sid=1&ftxt=1Oil changevehicle engine sound levelengine oil quality |
collection |
DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
I. Arefian H. Asady M. R. Monazam Esmaielpour Z. zolghadr . Zarif Yeganeh |
spellingShingle |
I. Arefian H. Asady M. R. Monazam Esmaielpour Z. zolghadr . Zarif Yeganeh Investigating impact of motor oil quality on vehicles engine induced noise level بهداشت و ایمنی کار Oil change vehicle engine sound level engine oil quality |
author_facet |
I. Arefian H. Asady M. R. Monazam Esmaielpour Z. zolghadr . Zarif Yeganeh |
author_sort |
I. Arefian |
title |
Investigating impact of motor oil quality on vehicles engine induced noise level |
title_short |
Investigating impact of motor oil quality on vehicles engine induced noise level |
title_full |
Investigating impact of motor oil quality on vehicles engine induced noise level |
title_fullStr |
Investigating impact of motor oil quality on vehicles engine induced noise level |
title_full_unstemmed |
Investigating impact of motor oil quality on vehicles engine induced noise level |
title_sort |
investigating impact of motor oil quality on vehicles engine induced noise level |
publisher |
Tehran University of Medical Sciences |
series |
بهداشت و ایمنی کار |
issn |
2251-807X 2251-807X |
publishDate |
2015-09-01 |
description |
Introduction: Vehicle engine id one of the main sources of noise which its level is influenced by various parameters. The aim of this study was to investigate the impact of motor oils quality before and after oil change on the variability of vehicle engine induced noise level. In this study it is tried to follow-up the efficacy of motor oil quality on engines sound level.
Material and Method: First, engine noise of 94 vehicles were recorded for 30 seconds before and after oil change and all the vehicles technical information including mileage, type of motor oil, and type of vehicle were registered. Following, the recorded noises were calibrated in semi-anechoic chamber and the sound pressure levels were measured with A and C-weighting network and main octav bands, using a sound level meters. The obtained results analyzed using SPSS software version 17.
Results: The effects of motor oil quality on different noise levels of engines were determined and a significant reduction in noise level of vehicles engine was observed. Investigation of the relationship between mileage and motor oil quality on various engines sound level manifested that vehicles with mileage ranged 100000-150000 miles had significant reduction in their sound pressure levels in comparison with other vehicles.
Conclusion: The results revealed that engine oil is among factors reducing the vehicle engine induced noise level. Moreover, the engine oil type and the vehicle mileage are key variables which determine the impact of engine oil quality on reduction of the sound level of vehicles engine. |
topic |
Oil change vehicle engine sound level engine oil quality |
url |
http://jhsw.tums.ac.ir/browse.php?a_id=5300&slc_lang=en&sid=1&ftxt=1 |
work_keys_str_mv |
AT iarefian investigatingimpactofmotoroilqualityonvehiclesengineinducednoiselevel AT hasady investigatingimpactofmotoroilqualityonvehiclesengineinducednoiselevel AT mrmonazamesmaielpour investigatingimpactofmotoroilqualityonvehiclesengineinducednoiselevel AT zzolghadr investigatingimpactofmotoroilqualityonvehiclesengineinducednoiselevel AT zarifyeganeh investigatingimpactofmotoroilqualityonvehiclesengineinducednoiselevel |
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