Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 20 Issue 4
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- Pages.1154-1163
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
Evaluation of Joint Reaction Forces for a Hydraulic Excavator Subjected to a Critical Load
가혹하중이 작용하는 경우의 굴삭기 연결부의 반력계산
- Kim, Oe-Jo (Graduate School of Busan National University) ;
- Yu, Wan-Seok (Mechanical Technology Research Center, Busan National University) ;
- Yun, Kyeong-Hwa (Samsung Heavy Industries ) ;
- Gang, Ha-Geun (Samsung Heavy Industries )
- Published : 1996.04.01
Abstract
This paper presents a three dimensional modeling and dynamic anlaysis of a hydraulic excavator. An excavator is composed of a ground, an under-frame, two idlers, two spockets, an upper-frame, a boom, an arm, a bucket two yokes, two connecting rods, two boom cylinders, an arm cylinder, and a bucket cylinder. Each cylinder is modeled with two separate bodies which are linked to each other by a translational joint. The three dimensioanl model of the excavator consists of 22 bodies and each body is assumed as rigid. This paper suggested the maximum lifting capability, a critical load and reaction forces at joints form the DADS simulation. It was presumed that the reaction forces due to a critical load are three times bigger than those due to the maximum lifting capacity.
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