메인 베어링 강성이 풍력발전기용 3점 지지 드라이브 트레인의 기어박스에 미치는 영향

• Published in: 한국생산제조시스템학회지 Vol. 24; no. 3; pp. 278 - 286
• Main Authors: 남주석, 남용윤, Nam, Ju Seok, Nam, Yong Yun
• Format: Journal Article
• Language: Korean
• Published: 2015
• Subjects: Drive train; Stiffness; Gearbox; Main bearing; Non-torque loads; Wind turbine
• ISSN: 2233-6036; 2383-4846

The effects of the main bearing stiffness combined with vertical non-torque force on the input load and shaft deflection of a gearbox were investigated for the three-point suspension drive train of a wind turbine. A finite element analysis model for the drive train was studied experimentally, and its applicability to the present study was verified. The results show that, as the main bearing stiffness is increased, the input load of the gearbox decreases, whereas the input shaft deflection increases. The stiffness component for the pitch moment has the largest influence on the gearbox input load. Although the gearbox life increases at a higher main bearing stiffness, the economic efficiency and durability of the entire drive train system should also be considered in the selection of the main bearing stiffness.