Relationship between objective and subjective methods in evaluating static discomfort of car driver seat

D. D I Daruis, Baba Md Deros, Mohd. Jailani Mohd Nor, M. Hosseini Fouladi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Objective method alone is insufficient in measuring discomfort of car seats. It is indirect and does not truly convey the perception and feeling of the sitter. A combination of both objective and subjective method gives better evaluation on discomfort. Seat pressure distribution method was adopted to investigate the static characteristic of a seat. The method was found to be statistically repeatable in measuring sitting of fourteen male subjects in static condition. Subjective discomfort through subjective assessment using a valid and reliable self-established questionnaire together with a body pressure map (BPM) showed increasing discomfort as sitting time increase; which is expected. The short term seat pressure distribution was used to be correlated with subjective assessment. Significant and moderate correlation was observed between four local body parts namely the seat pan bolster, thighs, upper back and lower back with overall seat average pressure BPM used in the subjective evaluation. Multiple linear regression model were established; overall discomfort from averaged pressure from BPM can be predicted from right & left buttock, right & left thigh and upper back & lower back. It was found that R-S q=93.5%, R-S q (adj) = 83.7% with moderately adequate predictive ability with predicted R-Sq= 46.77%.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages4997-5003
Number of pages7
Volume433-440
DOIs
Publication statusPublished - 2012
Event2011 International Conference on Material Science and Information Technology, MSIT2011 - Singapore
Duration: 16 Sep 201118 Sep 2011

Publication series

NameAdvanced Materials Research
Volume433-440
ISSN (Print)10226680

Other

Other2011 International Conference on Material Science and Information Technology, MSIT2011
CitySingapore
Period16/9/1118/9/11

Fingerprint

Seats
Railroad cars
Pressure distribution
Linear regression

Keywords

  • Component
  • Discomfort
  • Discomfort survey
  • Seat pressure

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Daruis, D. D. I., Md Deros, B., Mohd Nor, M. J., & Hosseini Fouladi, M. (2012). Relationship between objective and subjective methods in evaluating static discomfort of car driver seat. In Advanced Materials Research (Vol. 433-440, pp. 4997-5003). (Advanced Materials Research; Vol. 433-440). https://doi.org/10.4028/www.scientific.net/AMR.433-440.4997

Relationship between objective and subjective methods in evaluating static discomfort of car driver seat. / Daruis, D. D I; Md Deros, Baba; Mohd Nor, Mohd. Jailani; Hosseini Fouladi, M.

Advanced Materials Research. Vol. 433-440 2012. p. 4997-5003 (Advanced Materials Research; Vol. 433-440).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Daruis, DDI, Md Deros, B, Mohd Nor, MJ & Hosseini Fouladi, M 2012, Relationship between objective and subjective methods in evaluating static discomfort of car driver seat. in Advanced Materials Research. vol. 433-440, Advanced Materials Research, vol. 433-440, pp. 4997-5003, 2011 International Conference on Material Science and Information Technology, MSIT2011, Singapore, 16/9/11. https://doi.org/10.4028/www.scientific.net/AMR.433-440.4997
Daruis DDI, Md Deros B, Mohd Nor MJ, Hosseini Fouladi M. Relationship between objective and subjective methods in evaluating static discomfort of car driver seat. In Advanced Materials Research. Vol. 433-440. 2012. p. 4997-5003. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.433-440.4997
Daruis, D. D I ; Md Deros, Baba ; Mohd Nor, Mohd. Jailani ; Hosseini Fouladi, M. / Relationship between objective and subjective methods in evaluating static discomfort of car driver seat. Advanced Materials Research. Vol. 433-440 2012. pp. 4997-5003 (Advanced Materials Research).
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