论文部分内容阅读
目前工程界计算机械零件工作表面,或者只考虑其弹性变形的影响,或者只计及润滑油层的作用。然而大多数零件表面的实际状态是,同时存在弹性变形和润滑油层,二者共同影响表面的应力分布和承载能力,而且相互影响,对于重载、大曲率差、低弹性模数的表面(如齿轮、蜗轮和轴承的表面)尤为突出。近年来一个新的理论——弹性流体力学润滑理论已经发展起来。本文介绍了同时计及弹性变形和流体动力学作用而建立起来的方程,收集和比较了几个已经发表的结果,附有若干实例说明该理论在实际工作中的意义,并讨论了今后的发展前景。
Currently, engineering works to calculate the working surface of mechanical parts, or only consider the effect of elastic deformation, or only consider the role of lubricant layer. However, the actual condition of most parts is that there are both elastic deformation and lubricant layer, which affect the surface stress distribution and bearing capacity, and affect each other. For the surface with heavy load, large curvature difference and low elastic modulus Gear, worm gear and bearing surface) is particularly prominent. In recent years, a new theory - elastic fluid mechanics lubrication theory has been developed. In this paper, the equations established by taking into account the effects of elastic deformation and hydrodynamics are collected, and several published results are collected and compared. Some examples are given to illustrate the significance of the theory in practical work and to discuss the future development prospect.