An Investigation of Various Factors Affecting Measurement Accuracy of the Tekscan Seat Pressure System

Lu, Hongzheng; Lin, G.H.

doi:10.1177/154193129604002006

Cited by 4 publications

(1 citation statement)

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“…The system advantages include data resolution, high-speed data collection, real time displays, and portability (Tekscan Inc. 1998). One of the disadvantages, according to Lu and Lin (1996), is system repeatability.…”

Section: Introductionmentioning

confidence: 99%

Ergonomics modelling and evaluation of automobile seat comfort

Kolich

Taboun

2004

Ergonomics

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Automobile seats are developed in an iterative manner because subjective feedback, which is usually of questionable quality, drives the design. The time and cost associated with iteration could be justified if the process was guaranteed to produce a comfortable seat. Unfortunately, this is not the case. Current practices are based on the premise that seat system design teams need objective, measurable laboratory standards, which can be linked to subjective perceptions of comfort. Only in this way can predictions be made regarding whether or not a particular design will be viewed by the consumer as comfortable. This type of forecasting ability would effectively improve the efficiency with which automobile seats are designed. In this context, the research reported, developed, and validated a stepwise, multiple linear regression model relating seat interface pressure characteristics, occupant anthropometry, occupant demographics, and perceptions of seat appearance to an overall, subjective comfort index derived from a survey with proven levels of reliability and validity. The model performance statistics were: adjusted r(2)=0.668, standard error of estimate=2.308, F (6, 38)=15.728, p=0.000, and cross-validated r (15)=0.952, p=0.000. From the model, human criteria for seat interface pressure measures were established. These findings could not have been attained without first demonstrating that (1) the data collection protocol for seat interface pressure measurement was repeatable and (2) seat interface pressure measurements can be used to distinguish between seats.

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Section: Introductionmentioning

confidence: 99%

Ergonomics modelling and evaluation of automobile seat comfort

Kolich

Taboun

2004

Ergonomics

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Sensory Evaluation Driven Methodology for Measurement System Design

Voisin

Levrat

2004

Intelligent Sensory Evaluation

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Vertical ground reaction forces on rigid and vibrating surfaces for vibration serviceability assessment of structures

Ahmadi

Caprani

Živanović

et al. 2018

Engineering Structures

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A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription.For more information, please contact the WRAP Team at: wrap@warwick.ac.uk This paper has been published under the following reference: Ahmadi, E., Vertical ground reaction forces on rigid and vibrating surfaces for vibration serviceability assessment of structures. Abstract 10Lightweight structures are sensitive to dynamic force generated by human walking and 11 consequently can exhibit excessive vibration responses. The imparted forces, known as 12 ground reaction forces (GRFs), are a key input in the vibration serviceability assessment of 13 footbridges. Most GRF measurements have been conducted on rigid surfaces such as 14 instrumented treadmills and force plates mounted on strong floors. However, it is thought that 15 the vibrating surface of a footbridge might affect the imparted human force. This paper 16 introduces a unique laboratory experimental setup to investigate vertical GRFs on both rigid 17 surface (strong floor) and a higher frequency flexible surface (footbridge). 810 walking trials 18were performed by 18 test subjects walking at different pacing frequencies. For each trial, test 19 subjects travelled a circuit of a vibrating footbridge surface followed by a rigid surface. A 20 novel data collection setup was adopted to record the vertical component of GRFs, and the 21 footbridge vibration response during each trial. Frequency-domain analysis of both single-22 step and continuous GRFs was then performed. The results show that the footbridge vibration 23 affects GRFs, and changes GRF magnitudes for harmonics in resonance with the footbridge 24 vibration (up to around 30% reduction in the dynamic load factor of the third harmonic). This 25 This paper has been published under the following reference: Ahmadi, E., Caprani, C., Živanović, S. and Heidarpour, A. (2018) Vertical ground reaction forces on rigid and vibrating surfaces for vibration serviceability assessment of structures. Engineering Structures, Vol. 172, pp. 723-738. (https://doi.org/10.1016/j.engstruct.2018 2 finding, and the measured GRFs, can be used for more accurate vibration serviceability 26 assessments of existing and new footbridges. 27

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An Investigation of Various Factors Affecting Measurement Accuracy of the Tekscan Seat Pressure System

Cited by 4 publications

References 0 publications

Ergonomics modelling and evaluation of automobile seat comfort

Ergonomics modelling and evaluation of automobile seat comfort

Sensory Evaluation Driven Methodology for Measurement System Design

Vertical ground reaction forces on rigid and vibrating surfaces for vibration serviceability assessment of structures

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