高速涡轮泵转子系统动力学集成建模及应用  

Integrated Modeling and Application of High-speed Turbopump Rotor System

作　　者：董卫红[1] 伊建辉[1] 张帆[1] 袁小阳[1] 

机构地区：[1]西安交通大学现代设计及转子轴承系统教育部重点实验室,西安710049

出　　处：《机械科学与技术》2013年第9期1254-1258,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51175408)资助

摘　　要：针对高速涡轮泵转子系统多摩擦学元件耦合的特点,建立了计入密封装置、推力轴承、轴向平衡装置等多摩擦学元件耦合时复杂转子系统的集成动力学模型。对某液氢高速涡轮泵转子动力学性能的数值仿真研究结果表明:计入端面密封、推力轴承及平衡盘等的力矩刚度影响,系统1阶临界转速提高25%,失稳转速提高50%,为高速涡轮泵转子系统的稳定性提高措施的选择和论证提供了新思路。为进一步提高转子系统的稳定性,在轴承中引入了超导可倾瓦块,并对引入该附件后转子系统动力学集成建模方法进行了初步探讨。Based on the characteristics of high-speed turbopump system, taking into account of the seals, thrust bearing, axial balancing device and other tribological components, we conducted the integrated modeling including the rotor, the thrust bearings and other components. Numerical simulations for the performance of a liquid hydrogen high-speed turbopump rotor dynamics were performed and the results showed that when taking into account the torque stiffness of the seal, thrust bearings, balance disc and superconducting tilting pad, the first critical speed of the system was increased by 25%, instability speed was increased by 50%, thus, it provides a new idea for high- speed turbopump rotor to improving the stability of the rotor system. To further enhance the stability of the rotor sys- tem, we introduced the superconducting tilting pad in the bearing and discussed the integrated modeling method for the rotor system with this attachment.

关 键 词：高速涡轮泵 复杂转子系统 多摩擦副 耦合 动力学建模 

分 类 号：TH113[机械工程—机械设计及理论]