稳态条件下流体动力式径向轴承 圆柱形轴承 计算程序

[中文适用范围]： 1 适用范围 本标准规定了油润滑动压滑动轴承的计算方法。该方法通过润滑油膜完全分隔轴颈与轴承滑动表面，用于设计运行可靠的滑动轴承。标准涉及轴瓦中心加载、包角为360°、180°、150°、120°及90°的圆筒形轴承；其间隙几何尺寸恒定，仅可忽略不计的变形（由油膜压力及温度引起）。该计算方法旨在确定尺寸并优化用于汽轮机、发电机、电动机、齿轮箱、轧机、泵及其他机械的滑动轴承。本方法仅适用于稳态工况，即连续运行条件下，载荷的大小与方向、所有旋转部件的角速度均保持恒定。此外，在整体滑动轴承承受恒定载荷并以任意速度旋转时，亦适用。动态载荷（即大小和方向随时间变化的载荷，例如由振动或高速转子失稳引起的载荷）不在考虑范围内。注：存在等效计算方法，可用于估算工况并校核是否符合可接受条件，此类方法的使用同样被认可。 [外文原描述]： This document specifies a calculation procedure for oil-lubricated hydrodynamic plain bearings, with complete separation of the shaft and bearing sliding surfaces by a film of lubricant, used for designing plain bearings that are reliable in operation. It deals with circular cylindrical bearings having angular spans, Ω , of 360°, 180°, 150°, 120°, and 90°, the arc segment being loaded centrally. Their clearance geometry is constant except for negligible deformations resulting from lubricant film pressure and temperature. The calculation procedure serves to provide dimensions and optimize plain bearings in turbines, generators, electric motors, gear units, rolling mills, pumps, and other machines. It is limited to steady-state operation, i.e. under continuously driven operating conditions, with the magnitude and direction of loading as well as the angular speeds of all rotating parts constant. It can also be applied if a full plain bearing is subjected to a constant force rotating at any speed. Dynamic loadings (i.e. those whose magnitude and direction vary with time), such as those that can result from vibration effects and instabilities of rapid-running rotors, are not taken into account. NOTE Equivalent calculation procedures exist that enable operating conditions to be estimated and checked against acceptable conditions. The use of them is equally admissible.