Kim Seong Guk, Ko Chang-Yong, Kim Dong Hyun, Song Ye Eun, Kang Tae Uk, Ahn Sungwoo, Lim Dohyung, Kim Han Sung
Department of Biomedical Engineering and Research Institute for Medical Instruments & Rehabilitation Engineering, Yonsei University, Wonju, Gangwon, Republic of Korea.
Korea Orthopedics & Rehabilitation Engineering Center, Incheon, Republic of Korea.
PLoS One. 2017 Nov 29;12(11):e0187918. doi: 10.1371/journal.pone.0187918. eCollection 2017.
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.
座椅舒适性是消费者购车时考虑的主要因素之一。在本研究中，我们开发了一种带有剪切力传感器的假人来评估座椅舒适性。该传感器尺寸为25毫米×25毫米×26毫米，由S45C制成。采用化学镀镍对其表面进行涂层处理，以防止腐蚀和氧化。所提出的传感器使用合格的称重传感器进行了验证，显示出高精度和高准确度（测量范围：-30至30牛；灵敏度：0.1牛；线性关系：R = 0.999；横向灵敏度：<1%）。该假人按照SAE标准（SAE J826）制造，并在其设计中纳入了剪切传感器。我们使用一辆轿车在四种驾驶条件和五种不同速度下测量了剪切力；结果表明，在所有驾驶条件下，剪切力均随速度增加。在加速和减速情况下，假人下半身的剪切力会显著变化。在左右转弯时，假人上半身的剪切力会显著变化。
