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Application of Flexible Bridges and/or Flexible Turn-Table to a Crawler - Type Excavator for Vibration Isolation
Technical Paper
2007-01-2430
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Conventional crawler-type excavators have not had any suspension-like systems for the reduction of the road-induced vibration that is transmitted to an operator. In order to make the operator more comfortable when traveling, two kinds of vibration isolation elements in Fig.1(b) were newly introduced to the under-carriage system and their effects were investigated in this study. One of vibration isolation elements is the flexible bridge[1] made of multilayered rubber on steel plates instead of only steel. The other one is the flexible turn-table[1] between the center frame and cabin.
In this experimental study, the effects of the vibration isolation elements on the vibration responses at the seat floor were analyzed for three types of off-roads. As analysis tools, power spectral densities of accelerations at the cabin floor, ride values for the assessment of ride comfort and vibration duration time permissible for human body based on British Standards[2] were used.
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Authors
Citation
Kim, K., Kim, K., Park, D., Cho, C. et al., "Application of Flexible Bridges and/or Flexible Turn-Table to a Crawler - Type Excavator for Vibration Isolation," SAE Technical Paper 2007-01-2430, 2007, https://doi.org/10.4271/2007-01-2430.Also In
References
- Park Dong-hwa Cho Joon-il Seon Jin-gyu “Undercarriage having shock absorption function,” United States, Patent Application Publication, Pub. No.: US 2006/0267304 A1 Nov 30 2006
- British Standards, BS6841 “Measurement and evaluation of human exposed to whole-body mechanical vibration and repeated shock,” 1987
- Griffin M. J. “Handbook of Human Vibration,” Academic Press 1990
- International Organization for Standardization, ISO2631 “Evaluation of human exposure to whole-body vibration,” 1985