Dynamic power tool operation model: Experienced users vs. novice users

Abstract

Previous study demonstrated that a single-degree-of-freedom mechanical model can represent a human power tool operator subjective to impulsive torque reactions. Using only novice tool users, it was shown that the mechanical capabilities to respond to tool torque reaction depended on workstation location and orientation, and varied among users (Lin, Radwin, & Richard, 2000). It was hypothesized that the mechanical model elements among experienced tool operators may be different from novice users. A laboratory study was carried out to measure the equivalent mechanical parameters among the novice and experienced tools users. The results demonstrate the difference between the two groups. Those may represent the strategy developed by the experienced users to minimize the impacts from the impulsive torque reactions. © 2011 Springer-Verlag.