2Chen Yicheng, Chungbiau T. say with localized beating contact [ J ]. sign, 2002,38(8): 707-723.
3Stress analysis of a helical gear set Finite Elements in Analysis and De- Li Shuting. Finite element analyses for contact strength and bending strength of a pair of spur gears with machining errors, assembly errors and tooth modifications[ J]. Mechanism and Machine Theory, 2007,42( 1 ) : 88 - 114.
