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http://dx.doi.org/10.14775/ksmpe.2018.17.3.109

Design Improvement of Front-End Loader for Tractor to Reduce Stress Concentration and Evaluation of Impact Safety  

Lee, Boo-Youn (Dept. of Mechanical & Automotive Engineering, KEIMYUNG UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.17, no.3, 2018 , pp. 109-119 More about this Journal
Abstract
The purpose of this study is to evaluate the structural safety of the front-end loader for the 90 kW class of agricultural tractors in impact test conditions. Deformation and stress on the loader under the impact test conditions are analyzed using the commercial finite element analysis software ANSYS. In previous research dealing with the initial design of the loader, the maximum stress occurred in the mount and exceeded the yield strength of the material. In this paper, an improved design of the mount of the loader was proposed to reduce the stress concentration in the initial design. The safety of the improved design was verified by performing rigid-body dynamics analysis, transient structural analysis, and static structural analysis under three impact test conditions: a drop and catch test, a corner pull test, a corner push test. It was found that the local stress concentration in the mount that appeared in the initial design was greatly reduced in the improved design, and that the maximum stresses occurred in the three impact test conditions are smaller than the yield strength. It is expected that the design improvement of the mount proposed in this study and the method of analysis may be effectively used to enhance structural safety in the development of new model front loaders in the future.
Keywords
Front-End Loader; Agricultural Tractor; Impact; Finite Element Analysis; Structural Design;
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Times Cited By KSCI : 5  (Citation Analysis)
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