随着现代工业迅速发展,机械制造工业中旋转机械设备制造得越来越大。大型机床、飞机,巨型轮船迅速增加。百万千瓦的发电设备,在许多国家已经诞生或者正在研制。影响旋转机械设备发展的原因之一是轴承的可靠性,因此,近几年来工业发达的美国、日本等国都在开展轴承的科学研究和轴承参数测量工作。轴承是否可靠,取决于轴承能否保持可靠的所需的油膜厚度。油膜厚度可按流体力学进行计算。 With the rapid development of modern industry, the rotating machinery and equipment in the machinery manufacturing industry are being manufactured more and more. Large machine tools, aircraft, giant ships increased rapidly. One million kilowatts of power generation equipment, in many countries have been born or are being developed. Therefore, one of the reasons that influence the development of rotating machinery and equipment is bearing reliability. Therefore, the developed countries such as the United States and Japan in recent years are carrying out scientific research on bearings and bearing parameter measurement. Whether the bearing is reliable depends on the thickness of the oil film required for reliable bearing. Oil film thickness can be calculated by hydrodynamics.