Investigation of Experimental Devices for Finger Active and Passive Tactile Friction Analysis

• Published in: Chinese journal of mechanical engineering Vol. 36; no. 1; pp. 38 - 139
• Main Authors: Zhou, Xue, Masen, Marc A., Mo, Jiliang, Shi, Xinyu, He, Yaosheng, Jin, Zhongmin
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 17.03.2023; Springer Nature B.V; Tribology Group,Department of Mechanical Engineering,Imperial College London,London SW7 2AZ,UK%Tribology Group,Department of Mechanical Engineering,Imperial College London,London SW7 2AZ,UK%Tribology Research Institute,Southwest Jiaotong University,Chengdu 610031,China%Inteliot,Shengzhen 518052,China%Tribology Research Institute,Southwest Jiaotong University,Chengdu 610031,China; School of Mechanical Engineering,University of Leeds,Leeds LS2 9JT,UK; Tribology Research Institute,Southwest Jiaotong University,Chengdu 610031,China; SpringerOpen
• Edition: English ed.
• Subjects: Acceleration; Active sliding; Contact angle; Contact force; Deformation; Electrical Machines and Networks; Electronics and Microelectronics; Engineering; Engineering Thermodynamics; Experimental device; Finger friction; Fingerprints; Fingers; Friction; Heat and Mass Transfer; Instrumentation; Intelligent Manufacturing Technology; Machines; Manufacturing; Mechanical Engineering; Original Article; Passive sliding; Power Electronics; Processes; Rotating; Sliding; Theoretical and Applied Mechanics; Touch; Tribology; Vibration analysis; Active sliding; Experimental device; Passive sliding; Rotating; Finger friction
• ISSN: 2192-8258; 1000-9345; 2192-8258
• DOI: 10.1186/s10033-023-00854-0

Complicated tribological behavior occurs when human fingers touch and perceive the surfaces of objects. In this process, people use their exploration style with different conditions, such as contact load, sliding speed, sliding direction, and angle of orientation between fingers and object surface consciously or unconsciously. This work addressed interlaboratory experimental devices for finger active and passive tactile friction analysis, showing two types of finger movement. In active sliding experiment, the participant slid their finger freely against the object surface, requiring the subject to control the motion conditions themselves. For passive sliding experiments, these motion conditions were adjusted by the device. Several analysis parameters, such as contact force, vibration acceleration signals, vibration magnitude, and fingerprint deformation were recorded simultaneously. Noticeable friction differences were observed when comparing active sliding and passive sliding. For passive sliding, stick-slip behavior occurred when sliding in the distal direction, evidenced by observing the friction force and the related deformation of the fingerprint ridges. The employed devices showed good repeatability and high reliability, which enriched the design of the experimental platform and provided guidance to the standardization research in the field of tactile friction.