摘要
本文在粘弹性材料三参数模型的基础上建立了塑料齿轮接触问题的计算方法。在这种计算方法中还考虑到了温度对塑料性能的影响,并提出了温度-弹性模量—摩擦系数的迭代运算过程。从两个平行轴粘弹性圆柱体的接触问题出发,可以得到一个法向接触和切向接触耦合的积分方程组。对该积分方程组经过数值处理和法向—切向问题的选代运算后,则可以求得塑料齿轮副啮合轮齿的法向接触应力、切向接触应力和接触区宽度。进而,本文又提出了以降低接触区最大剪应力为目标函数的塑料齿轮副变位系数选择优化方法。
A calculation method of contact problem of plastic gears based on three parameters model of viscoelasticity material is presented. In this calculation method, the influence of temperature upon the property of plastics is considered and an iteration process of temperature-elasticity module-friction coefficient is proposed. From the rolling contact problem of two viscoelastic cylinders with parallel axis, a series of normal-tangent contact coupled integration equation is obtained. Through numerical treatment and normal-tangent iteration, the normal contact stress, tangential stress and contact width of plastic gears are acquired. Finally, taking the minimization of maximum shearing stess as an objective function the addendum modification of plastic gears is optimized.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1991年第4期35-44,共10页
Journal of China University of Mining & Technology
关键词
齿轮
齿面
塑料
应力
变位
选择
plastic gears, contact problem, temperature, addendum modification
