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Prediction of vehicle discomfort from transient vibrations
Luleå tekniska universitet.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.ORCID-id: 0000-0003-2955-2776
2005 (Engelska)Ingår i: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 282, nr 3-5, s. 1043-1064Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Vehicle manufacturers are continuously seeking to improve vibration comfort. In this paper, subjective responses from transient vibrations in a forklift were analyzed on the basis of ISO 2631-1 and a number of additional variables. The objectives were to define: the effect of different operating conditions and appropriate background variables of subjects on perceived motions; the development of model that describes perceived discomfort as a function of measured vibrations; and important frequencies for prediction of vibration discomfort. The experiment was based on 12 different operating conditions defined by the variables: vehicle speed, obstacle height and load conditions. Eleven professional drivers participated and their responses of overall discomfort were defined by a vector sum of three perceived motions: shaking, for-aft and up-down motions. The evaluation method, maximum transient vibration value as defined in ISO 2631-1 was found to be adequate in predicting vibration discomfort during a four second transient vibration exposure. By analysis of narrow frequency band spectra of vibrations several explanations for the test results are discussed. The best results were obtained using a prediction model based on accelerations in -octave bands of pitch vibrations.

Ort, förlag, år, upplaga, sidor
2005. Vol. 282, nr 3-5, s. 1043-1064
Nationell ämneskategori
Strömningsmekanik och akustik
Forskningsämne
Teknisk akustik
Identifikatorer
URN: urn:nbn:se:ltu:diva-12333DOI: 10.1016/j.jsv.2004.03.037ISI: 000228171800024Scopus ID: 2-s2.0-14744305683Lokalt ID: b74b2ff0-6fea-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-12333DiVA, id: diva2:985283
Anmärkning
Validerad; 2005; 20060915 (biem)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Johansson, Örjan

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