ANALYSIS AND EXPERIMENTAL VERIFICATION OF DYNAMIC CHARACTERISTICS OF OIL FILM THRUST BEARINGS
ANALYSIS AND EXPERIMENTAL VERIFICATION OF DYNAMIC CHARACTERISTICS OF OIL FILM THRUST BEARINGS
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DOI：
10.1299/jsme1958.15.1004
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发表时间：
1972-08
期刊：
影响因子：
--
通讯作者：
T. Someya;M. Fukuda
中科院分区：
文献类型：
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作者：
T. Someya;M. Fukuda
随着大型船用发动机容量的不断增大，大型船舶螺旋桨轴的轴向振动成为一个新的问题。为了解决这个问题，有必要研究推力轴承的动态特性。作者从理论上分析了周期性载荷下动压推力轴承油膜厚度和压力分布的变化，并通过实验验证了结果。在理论计算中，使用了两种不同的方法。其中一种是严格方法，其中每隔一个小时间间隔求解雷诺方程（非线性解），另一种是近似方法，使用油膜的弹簧和阻尼系数（线性解）。结果是： (1)线性求解方法可以应用于相当大的负载幅度。 (2)油膜厚度对载荷的相位延迟较大，这一点已得到分析和实验的验证。
With an increasing capacity of large marine engines, the axial vibration of a large ship propeller shaft becomes a new problem. In order to solve this, investigation of the dynamic characteristics of thrust bearings is necessary. The authors theoretically analysed the variation of the oil film thickness and the pressure distribution of hydrodynamic thrust bearings under periodical load and verified the results experimentally. In the theoretical calculation, two different ;methods were used. One of them is a strict method, in which the Reynolds equation is solved at every small time interval (nonlinear solution), and the other is an approximate method, using spring and damping coefficients of the oil film (linear solution). The results are: (1) The linear solution method can be applied up to a considerably large amplitude of load. (2) Phase delay of the oil film thickness against the load is large, which has been verified both analytically and experimentally.