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http://bura.brunel.ac.uk/handle/2438/10109
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DC Field | Value | Language |
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dc.contributor.author | Ajovalasit, M | - |
dc.contributor.author | Giacomia, I | - |
dc.coverage.spatial | 23 | en |
dc.date.accessioned | 2007-12-17T14:15:29Z | - |
dc.date.accessioned | 2015-02-04T15:46:02Z | - |
dc.date.available | 2015-02-04T15:46:02Z | - |
dc.date.issued | 2005 | - |
dc.identifier.citation | Proceedings of the Institution of Mechanical Engineers Part D - Journal of Automobile Engineering, 219(D4), 499 - 510, 2005 | en_US |
dc.identifier.issn | 0954-4070 | - |
dc.identifier.uri | http://pid.sagepub.com/content/219/4/499 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/10109 | - |
dc.description.abstract | This study investigated the human subjective response to steering wheel vibration of the type caused by a four-cylinder diesel engine idle in passenger cars. Vibrotactile perception was assessed using sinusoidal amplitude-modulated vibratory stimuli of constant energy level (r.m.s. acceleration, 0.41 m/s(2)) having a carrier frequency of 26 Hz (i.e. engine firing frequency) and modulation frequency of 6.5 Hz (half-order engine harmonic). Evaluations of seven levels of modulation depth parameter m (0.0, 0.1, 0.2, 0.4, 0.6, 0.8, and 1.0) were performed in order to define the growth function of human perceived disturbance as a function of amplitude modulation depth. Two semantic descriptors were used (unpleasantness and roughness) and two test methods (the Thurstone paired-comparison method and the Borg CR-10 direct evaluation scale) for a total of four tests. Each test was performed using an independent group of 25 individuals. The results suggest that there is a critical value of modulation depth m = 0.2 below which human subjects do not perceive differences in amplitude modulation and above which the stimulus-response relationship increases monotonically with a power function. The Stevens power exponents suggest that the perceived unpleasantness is non-linearly dependent on modulation depth m with an exponent greater than 1 and that the perceived roughness is dependent with an exponent close to unity. | en_US |
dc.format.extent | 549283 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | English | - |
dc.language.iso | en | en_US |
dc.publisher | Professional Engineering Publishing Ltd | en_US |
dc.subject | Vibration | en_US |
dc.subject | Engine | en_US |
dc.subject | Idle | en_US |
dc.subject | Subjective | en_US |
dc.subject | Perception | en_US |
dc.subject | Modulation | en_US |
dc.title | Human subjective response to steering wheel vibration caused by diesel engine idle | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1243/095440705X11167 | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
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Fulltext.pdf | 1.15 MB | Adobe PDF | View/Open |
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