Investigation of the 3-D vibration transmissibility on the human hand-arm system using a 3-D scanning laser vibrometer.
Welcome-DE; Dong-RG; Xu-XS; Warren-C; McDowell-TW; Wu-JZ
Can Acoust 2011 Feb; 39(2):44-45
Vibration transmissibility on the hand-arm system is very important to understand and simulate the biodynamic response of the system. Such knowledge can be further used to help understand vibration-induced discomforts, injuries, and disorders. While the mass of the conventional accelerometers could significantly affect the measurement of the transmitted vibration, some single-axis laser vibrometers have been used to measure the transmitted vibration (Sorensson and Lundstrom, 1992: Deboli et al., 1999; Concettoni and Griffin, 2010). However, the transmitted vibrations excited from multi-axes vibrations have been far from sufficiently studied and understood. Further simulations of the system also require multi-axes transfer functions. Therefore, the objective of this study is to investigate the vibration transmissibility on the human hand-arm system subjected to vibrations in three orthogonal directions (Xh. Yh, and Zl) Some preliminary results and their interpretations are presented in this short paper.
Biodynamics; Biological-effects; Biological-factors; Biological-monitoring; Biomechanical-modeling; Biomechanics; Exposure-assessment; Exposure-levels; Hand-tools; Mathematical-models; Measurement-equipment; Physiological-effects; Physiological-response; Quantitative-analysis; Statistical-analysis; Vibration; Vibration-effects; Vibration-exposure;
Author Keywords: Damage detection; Resonance; 3D-scanning; Biodynamic response; Frequency ranges; Function of frequency; Hand-arm system; Measurement locations; Orthogonal directions; Random vibrations; Transmissibility functions; Vibration controller; Vibration test system; Vibration transmissibility
Engineering and Engineering & Control Technology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, West Virginia, USA