유한요소해석과 실험에 의한 유압 윈치 드럼의 응력 계산 및 수명 예측

• Published in: 大韓造船學會 論文集 Vol. 57; no. 5; pp. 254 - 261
• Main Authors: 이기천(Gi-Chun Lee), 박제인(Jane Park), 남태연(Tae-Yeon Nam), 최종식(Jong-Sik Choi), 박종원(Jong-Won Park), 이용범(Yong-Bum Lee), 제영기(Yeong-Gi Je), 이재환(Jae-Hwan Lee)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2020
• Subjects: 조선공학; Winch(윈치); Ball bearing life(볼베어링 수명); Drum(드럼); Sun gear(선 기어); Hoop stress(실린더 응력); Planetary gear(유성 기어)
• ISSN: 1225-1143; 2287-7355
• DOI: 10.3744/SNAK.2020.57.5.254

The structural safety of hydraulic winch drum and the gears are estimated by the Finite Element Analysis (FEA) and the winch operation experiment. The mesh convergence test is performed and the applied force is the pressure on the drum converted from the rope tension in working condition. The stress of the drum calculated from the strain values of the winch operation experiment shows the agreement with that from the FEA. Most stress values are under the yield strength except for the small hole made for the wire rope fixation. The life of bearings in the drum is calculated using the life prediction formula with the reaction forces from the operation load. One of the two ball bearings shows the short life for impact condition, yet the real prototype winch system shows more life than the numerical value.