Earticle

초록

영어

Finite Element Analysis (FEA) was conducted to verify the structural safety of thruster disc brakes applied to quay cranes. Since these disc brakes are continuously exposed to heavy loads and repetitive braking conditions, ensuring sufficient structural reliability is of paramount importance. SS410 was applied as the frame material and STS405 as the pin material, and structural analysis incorporating the respective material properties was performed using ANSYS Workbench. Based on a minimum operating range of 0.5 mm, the analysis yielded a maximum deformation of 0.52 mm, an equivalent stress of 231.79 MPa, and a shear stress of 79.09 MPa in the frame; the resulting safety factor of 1.77 confirmed that stress remained below the yield strength of SS410 (410 MPa), verifying structural safety under normal operating conditions. Under the maximum operating range of 3.0 mm, a maximum deformation of 3.13 mm, an equivalent stress of 340.26 MPa, a shear stress of 155.54 MPa, and a safety factor of 1.2 were obtained, all remaining below the yield strength limit of the frame material. Although stress concentrations were localized primarily in the frame region, both components remained within their respective yield limits. The results confirm the brake's structural integrity under normal operating conditions, though the 3.0 mm case warrants design refinement to meet the recommended safety factor of 1.5. Subsequent studies will address fatigue life, thermo-structural coupling, and dynamic loading to further validate and improve the design.

목차

Abstract
1. 서론
2. 모델링 및 경계조건
2.1 실험대상
3. 이론적 배경
3.1 제동력
3.2 스프링 힘
3.3 작동 원리
4. 시뮬레이션
4.1 물성치 설정
4.2 수치해석 조건 설정
4.3 시뮬레이션 결과
5. 결론 및 고찰
References

키워드

저자

• 정도영 [ Do-Yeong Jeong | Member, Graduate School, Dept. Mechanical Systems Eng. Gyeongsang National University ]
• 이정욱 [ Jeong-Uk Lee | Member, Graduate School, Dept. Mechanical Systems Eng. Gyeongsang National University ]
• 한승훈 [ Seung-Hun Han | Member, Professor, Dept. Mechanical Systems Eng., Gyeongsang National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620