Development of a shear force measurement dummy for seat comfort

Kim, Seong Guk; Ko, Chang-Yong; Kim, Dong Hyun; Song, Youngsup; Kang, Tae Uk; Ahn, Sungwoo; Lim, Dohyung; Kim, Han Sung

doi:10.1371/journal.pone.0187918

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Moreover, this on-board equipment would also allow the speed of the vehicle and its variations to be considered. Kim et al [ 57 ] evaluated the effect of accelerations, decelerations, and curves on shear-forces at the seating interface, using a dummy with several sensors. The authors showed that as vehicle speed increased, so did the shear-forces.…”

Section: Discussionmentioning

confidence: 99%

Car seat impact on driver’s sitting behavior and perceived discomfort during prolonged real driving on varied road types

et al. 2021

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Prolonged driving under real conditions can entail discomfort linked to driving posture, seat design features, and road properties like whole-body vibrations (WBV). This study evaluated the effect of three different seats (S1 = soft; S2 = firm; S3 = soft with suspension system) on driver’s sitting behavior and perceived discomfort on different road types in real driving conditions. Twenty-one participants drove the same 195 km itinerary alternating highway, city, country, and mountain segments. Throughout the driving sessions, Contact Pressure (CP), Contact Surface (CS), Seat Pressure Distribution Percentage (SPD%) and Repositioning Movements (RM) were recorded via two pressure mats installed on seat cushion and backrest. Moreover every 20 minutes, participants rated their whole-body and local discomfort. While the same increase in whole-body discomfort with driving time was observed for all three seats, S3 limited local perceived discomfort, especially in buttocks, thighs, neck, and upper back. The pressure profiles of the three seats were similar for CP, CS and RM on the backrest but differed on the seat cushion. The soft seats (S1 & S3) showed better pressure distribution, with lower SPD% than the firm seat (S2). All three showed highest CP and CS under the thighs. Road type also affected both CP and CS of all three seats, with significant differences appearing between early city, highway and country segments. In the light of these results, automotive manufacturers could enhance seat design for reduced driver discomfort by combining a soft seat cushion to reduce pressure peaks, a firm backrest to support the trunk, and a suspension system to minimize vibrations.

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Section: Discussionmentioning

confidence: 99%

Car seat impact on driver’s sitting behavior and perceived discomfort during prolonged real driving on varied road types

et al. 2021

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“…Car seats can be influenced by the overall ergonomic seat design, which includes material, stiffness, pressure distribution, force shear and shapes and dynamic factors in causing instantaneous environment, such as vibrations and shock ( 76 – 78 ). Regarding the anthropometric dimension, weight and BMI significantly impact the changes in total contact area of body with the seat ( 42 , 79 ).…”

Section: Discussionmentioning

confidence: 99%

Impact of Anthropometric Parameters on Pressure Variables for Determining Comfort and Safety of Automotive Seat: A Systematic Review

Sabri¹,

Khamis²,

Tahir³

et al. 2022

ijph

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Background: A good quality of seating comfort requires integration of capabilities and limitations of the human body and the occupant’s preferred posture in different seating environments and tasks. This study provides a systematic and comprehensive review of past research related to the correlation between anthropometric parameter to seat pressure variables to determine the impact on comfort and safety in seat design. Methods: This systematic review consisted of PRISMA flow diagram guidelines searched in Web of Science, Scopus, Sciencedirect and Google Scholar from 2009 till January 2020 related to keyword lists. Results: As a result, 26 articles which addressed the correlation between anthropometric parameters and pressure variables were selected. Body mass index and weight were the most influence anthropometric parameter towards the pressure variables. In addition, almost all studies showed that there were medium to strong correlation between the lower body parts and the pressure variables, with R as above 0.5. Conclusion: Comfort and safety depend on the design and ergonomics of the seat to maintain the body posture under complex roads, driving conditions and changing environment. In essence, seat and geometry functions help to reduce fatigue level and improve comfort, safety and health among drivers based on user, task and environment of driving activities.

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Parametrization of manual work in automotive assembly for wearable force sensing

Kerner

Gunasekar

Vedant

et al. 2021

Journal of Manufacturing Systems

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Development of a shear force measurement dummy for seat comfort

Cited by 4 publications

References 13 publications

Car seat impact on driver’s sitting behavior and perceived discomfort during prolonged real driving on varied road types

Car seat impact on driver’s sitting behavior and perceived discomfort during prolonged real driving on varied road types

Impact of Anthropometric Parameters on Pressure Variables for Determining Comfort and Safety of Automotive Seat: A Systematic Review

Parametrization of manual work in automotive assembly for wearable force sensing

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