Vibration transmissibility reduction module with flexure mechanism for personal tools
- 200 Downloads
- 4 Citations
Abstract
In many mechanical operations, vibrations from personal tools may cause serious injuries to the human body. This is particularly true in the case of vibrations that are constantly and repeatedly transferred to humans. In fact, a serious physical problem, Raynaud’s phenomenon, may occur. In this paper, we propose a vibration transmissibility reduction module with a flexure mechanism for personal tools. First, a target personal tool, that is, a grass cutter is selected, and the level of vibration transmissibility to the hand is measured. Subsequently, we develop a concept design of the module with stiffness to reduce the vibration transmissibility by more than 20%. The vibration transmissibility is measured by an accelerometer. In addition, the vibration reduction is enhanced when the gap between the inner and outer bodies is filled with silicone gel. Finally, this is verified experimentally.
Keywords
Tool engineering Vibration damping Flexure Silicon gelPreview
Unable to display preview. Download preview PDF.
References
- [1]K T Palmer, Raynaud’s phenomenon, vibration induced white finger and difficulties in hearing, Occupational & Environmental Medicine, 59(9) (2002) 640–642.CrossRefGoogle Scholar
- [2]Patrick J. Radle, Jeffrey M. Zeiler and Daryl S. Richards, Power tool with vibration isolated handle, U.S. Patent 5697456 (1997).Google Scholar
- [3]Michiel J. Vervoordeldonk, Theo A. M. Ruijl and Rob M. G. Rijs, Development of a novel active isolation concept, ASPE 2004 Spring Topical Meeting.Google Scholar
- [4]Singiresu S. Rao, Mechanical Vibration, 3rd Ed. Addison-Wesley, New York, USA (1995) 492–506.Google Scholar
- [5]DOW CORNING, Information About Dow Corning Brand Silicone Dielectric gels, www.cowcorning.com.