Development of a shear force measurement dummy for seat comfort

Seong Guk Kim; Chang Yong Ko; Dong Hyun Kim; Ye Eun Song; Tae Uk Kang; Sungwoo Ahn; Dohyung Lim; Han Sung Kim

doi:10.1371/journal.pone.0187918

Development of a shear force measurement dummy for seat comfort

Seong Guk Kim, Chang Yong Ko, Dong Hyun Kim, Ye Eun Song, Tae Uk Kang, Sungwoo Ahn, Dohyung Lim, Han Sung Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Seat comfort is one of the main factors that consumers consider when purchasing a car. In this study, we develop a dummy with a shear-force sensor to evaluate seat comfort. The sensor has dimensions of 25 mm × 25 mm × 26 mm and is made of S45C. Electroless nickel plating is employed to coat its surface in order to prevent corrosion and oxidation. The proposed sensor is validated using a qualified load cell and shows high accuracy and precision (measurement range: −30–30 N; sensitivity: 0.1 N; linear relationship: R = 0.999; transverse sensitivity: <1%). The dummy is manufactured in compliance with the SAE standards (SAE J826) and incorporates shear sensors into its design. We measure the shear force under four driving conditions and at five different speeds using a sedan; results showed that the shear force increases with speed under all driving conditions. In the case of acceleration and deceleration, shear force significantly changes in the lower body of the dummy. During right and left turns, it significantly changes in the upper body of the dummy.

Original language	English
Article number	e0187918
Journal	PloS one
Volume	12
Issue number	11
DOIs	https://doi.org/10.1371/journal.pone.0187918
Publication status	Published - 2017 Nov

Bibliographical note

Funding Information:
This work was supported by Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIP) (No. 2016-0-00452, Development of creative technology based on complex 3D printing technology for labor, the elderly and the disabled). The authors who are employed by commercial companies Hyundai Motor Group and Cozy international Co., Ltd. played a role in the study investigation, validation of sensor and data collection. They are paid a salary from their company.

Publisher Copyright:
© 2017 Kim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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10.1371/journal.pone.0187918

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title = "Development of a shear force measurement dummy for seat comfort",

abstract = "Seat comfort is one of the main factors that consumers consider when purchasing a car. In this study, we develop a dummy with a shear-force sensor to evaluate seat comfort. The sensor has dimensions of 25 mm × 25 mm × 26 mm and is made of S45C. Electroless nickel plating is employed to coat its surface in order to prevent corrosion and oxidation. The proposed sensor is validated using a qualified load cell and shows high accuracy and precision (measurement range: −30–30 N; sensitivity: 0.1 N; linear relationship: R = 0.999; transverse sensitivity: <1%). The dummy is manufactured in compliance with the SAE standards (SAE J826) and incorporates shear sensors into its design. We measure the shear force under four driving conditions and at five different speeds using a sedan; results showed that the shear force increases with speed under all driving conditions. In the case of acceleration and deceleration, shear force significantly changes in the lower body of the dummy. During right and left turns, it significantly changes in the upper body of the dummy.",

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AU - Lim, Dohyung

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Development of a shear force measurement dummy for seat comfort

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