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研究了可倾瓦滑动推力轴承在阶跃载荷扰动下的绝热瞬态行为.通过对轴承油膜参数及轴承元件的动力学建模,获得了大载荷扰动工况下可倾瓦推力轴承热瞬态运动参数的非线性响应曲线.由于瞬态分析中大的计算量及油膜力的非线性,计算中采用了Newton-Raphson法对模型进行求解.最终给出了瞬态过程中轴承最高温度、最小膜厚等参数的变化规律.结果表明:如果设计和运行不当,轴承有可能因为瞬态过程中温升过高等原因失效.
The adiabatic transient behavior of tilting pad sliding thrust bearings under step-load disturbances was studied.Based on the bearing oil film parameters and the dynamic modeling of the bearing components, the thermal transient of the tilting pad thrust bearings under large load disturbances Nonlinear response curve of motion parameters.Because Newton-Raphson method was used in the calculation to calculate the large amount of calculation and the non-linearity of oil film force in transient analysis, the maximum bearing temperature in transient process Film thickness and other parameters.The results show that if the design and operation is not proper, the bearing may be invalid due to the temperature rise in the transient process.