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Improvement of Ride Comfort of the Excavator
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English
Abstract
The purpose of this paper is to evaluate and reduce the operator exposure to vibration and shock in cabin of excavator. A simple 3-DOF mass-spring-damper system, which consists of three 1-DOF sub-systems - engine and cabin mounting systems, and base frame- was assumed to model the complicated vibration transmission path. By investigating this simple model, the best constitution of characteristics of engine and cabin mounts and stiffness of frame was determined. Especially, the viscous hydraulic mount was applied to the cabin mounting system. New system was examined under various working conditions and compared with existing one. The most common method specified by ISO standard 2631 was used to evaluate and compare the effects of whole-body vibration between new and old systems. Results of examinations showed improvement of vibration, shock, and noise.
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Citation
Lee, D., Kim, C., Han, S., and Lee, S., "Improvement of Ride Comfort of the Excavator," SAE Technical Paper 972719, 1997, https://doi.org/10.4271/972719.Also In
References
- “Evaluation of human exposure to whole-body vibration” 1678
- MEIROVITCH LEONARD “Elements of vibration analysis” McGraw-Hill Book Company New York 1975
- European Communities “Council Directive of 19 December 1978 on the approximation of the laws of the Member States relating to the determination of the noise emission of construction plant and equipment, 79/113/EEC” Official Journal of the European Council 1978
- European Communities “Council Directive of 7 December 1981 amending Directive 79/113/EEC on the approximation of the laws of the Member States relating to the determination of the noise emission of construction plant and equipment, 81/1051/EEC” Official Journal of the European Council 1981