한국융합학회논문지 (Journal of the Korea Convergence Society)

  • 제5권2호
  • /
  • Pages.13-18
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  • 2014
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  • 2233-4890(pISSN)
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  • 2713-6353(eISSN)
한국융합학회 (Korea Convergence Society)
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굴착기에서의 리퍼의 형상에 따른 구조적 내구성 연구

A Study on Structural Durability due to the Configuration of Ripper at Excavator

  • 강민제 (제주대학교 전자공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Kang, Min-Jae (Department of Electronic Engineering, Jeju University) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju University)
  • 투고 : 2014.04.20
  • 심사 : 2014.05.25
  • 발행 : 2014.06.30
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초록

본 연구에서는 굴착기에서의 리퍼의 형상에 따른 구조 및 진동, 피로해석을 하였다. 2가지의 모델들 모두, 작업장치의 바디와 이어지는 축에서 최대 응력이 발생하였고 최대 변형량은 직접작업부에서 발생하였다. Model 1이 Model 2 보다 내구성면에서 구조적으로 더 안정적이라고 사료된다. 불규칙 피로 하중들 중에서는 하중의 변화가 극심한 'SAE bracket history'의 경우가 대체적으로 가장 불안정한 경향을 보이고 있고, 비교적 하중의 변화가 완만한 'Sample history'의 경우가 가장 안정함을 보이고 있다. 본 연구의 결과를 종합하여 굴착기에서의 리퍼의 설계에 응용한다면, 그 파손 방지 및 내구성을 검토하여 그 설계에 유용하게 활용될 것으로 사료된다.

In this study, two models due to the configuration of ripper at excavator are investigated by structural and fatigue analyses. The maximum stress and deformation are happened at the axis connected with the body of working device and the direct working part respectively. Model 1 is thought to have more structural durability than model 2. Fatigue life or damage in case of 'SAE bracket history' whose load change is most severest among non-uniform fatigue loads is shown to become most unstable. But life or damage in case of 'Sample history' whose load change is slowest among non-uniform fatigue loads is shown to become most stable. These study results can be effectively utilized with the design of ripper at excavator by anticipating and investigating prevention and durability against its fatigue damage.

키워드

참고문헌

  1. Kim, S. K., and Ock, J. H., "A Platform Moving Model for an Intelligent Excavator,"The Korean Society of Civil Engineers, Vol. 27, No. 6D, pp. 767-774, 2007.
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  6. Lim, T. H., and Yang, S. Y., "Development and Application of Simulator for Hydraulic Excavator,"Journal of the Korean Society for Precision Engineering, Vol. 23, No. 9 pp. 142-148, 2006.
  7. Kang, S. S., and Cho, S. K., 2010, "Structural Design and Analysis for the Reinforced Frame of Vehicle,"Journal of the Korean Society of Machine Tool Engineers, Vol. 19, No. 4, pp. 504-510.
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피인용 문헌

  1. Convergence study related in development of new intraoral jaw bone distractor in treating dentofacial deformities vol.7, pp.6, 2016, https://doi.org/10.15207/JKCS.2016.7.6.075