摘要
基于有限元及瞬态响应特性分析理论,将ANSYS和Pro/Engineer软件相结合,利用数据表对双圆弧齿轮进行斜坡式施加动载荷,并对产生的复杂弯曲动应力进行仿真分析,得出了特定工况下齿根及齿腰等效弯曲动应力的分布区域和变化规律.研究表明:当凸齿开始进入啮合时,啮入端齿根及齿腰的等效弯曲动应力最大;适当加大主动轮齿啮入端修薄量和齿轮重合度尾数,可提高齿轮的弯曲强度,但在啮出端不必进行齿端修薄.
Based on the analysis of the finite element and the transient response characteristics theory, ANSYS and Pro/Engineer software were connected, slope-style dynamic load was imposed on the double circular gear using data tables, a simulation analysis of the resulting complex bending dynamic stress was made, and the regional distribution and the law of change of the bending dynamic stress of the dedendum and tooth waist in specific conditions were obtained. Study shows that when the protrusion tooth begins to mesh, the dedendum and tooth waist of the intruding tooth have the maximum dynamic stress; properly increasing the repairing thinning amount at the entering mesh end of the active tooth and the superposition degree mantissa of the gear can improve the bending strength of the gear and save the repairing thinning at the meshing end.
出处
《五邑大学学报（自然科学版）》
CAS
2009年第4期32-36,共5页
Journal of Wuyi University(Natural Science Edition)
关键词
有限元
瞬态响应特性
双圆弧齿轮弯曲动应力
finite element
transient response characteristics
flexual dynamic stress of double arced gear
