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 language | English |
|---|---|
| Title of host publication | Advanced Materials Research |
| Pages | 4997-5003 |
| Number of pages | 7 |
| Volume | 433-440 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 2011 International Conference on Material Science and Information Technology, MSIT2011 - Singapore Duration: 16 Sep 2011 → 18 Sep 2011 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Volume | 433-440 |
| ISSN (Print) | 10226680 |
Other
| Other | 2011 International Conference on Material Science and Information Technology, MSIT2011 |
|---|---|
| City | Singapore |
| Period | 16/9/11 → 18/9/11 |
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Keywords
- Component
- Discomfort
- Discomfort survey
- Seat pressure
ASJC Scopus subject areas
- Engineering(all)
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Relationship between objective and subjective methods in evaluating static discomfort of car driver seat
AU - Daruis, D. D I
AU - Md Deros, Baba
AU - Mohd Nor, Mohd. Jailani
AU - Hosseini Fouladi, M.
PY - 2012
Y1 - 2012
N2 - 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%.
AB - 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%.
KW - Component
KW - Discomfort
KW - Discomfort survey
KW - Seat pressure
UR - http://www.scopus.com/inward/record.url?scp=84856033727&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84856033727&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.433-440.4997
DO - 10.4028/www.scientific.net/AMR.433-440.4997
M3 - Conference contribution
SN - 9783037853191
VL - 433-440
T3 - Advanced Materials Research
SP - 4997
EP - 5003
BT - Advanced Materials Research
ER -