CAJ | 학술논문

针对某一水轮机结构，推力轴承作为其重要部件，其运转状态的好坏对水轮机运行的安全性和平稳性产生重大影响。因此对水轮机推力轴承进行动力学仿真及结构分析，研究推力轴承运动时的特征，为该推力轴承实时监控提供理论支撑，具有十分重要的意义。介绍了该水轮机轴承内部的运动学关系，建立了该轴承的有限元模型，利用ANSYS/LS－DYNA显式动力学模块对该轴承的运动过程进行了仿真，并用LS－PREPOST进行后处理，分析了滚动轴承在正常情况下，轴承各部件的应力、位移分布规律，为水轮机推力轴承的正常运转提供了理论依据。
침대모일수륜궤결구，추력축승작위기중요부건，기운전상태적호배대수륜궤운행적안전성화평은성산생중대영향。인차대수륜궤추력축승진행동역학방진급결구분석，연구추력축승운동시적특정，위해추력축승실시감공제공이론지탱，구유십분중요적의의。개소료해수륜궤축승내부적운동학관계，건립료해축승적유한원모형，이용ANSYS/LS－DYNA현식동역학모괴대해축승적운동과정진행료방진，병용LS－PREPOST진행후처리，분석료곤동축승재정상정황하，축승각부건적응력、위이분포규률，위수륜궤추력축승적정상운전제공료이론의거。
Thrust bearing is an important component of the turbine structure, its quality affects the safety and stability of the turbine operation. Therefore,its dynamics simulation and structural analysis and investigation on its movement characteristics are of great significance to theoretical support for real-time monitoring. This paper describes the kinematic relations inside the turbine bearing,builds its finite element model and simulases motion of rol ing bearings by using ANSYS/LS-DYNA explicit dynamics module. It also shows the stress and displacement distribution of the bearing operating under normal conditions by processing the result using LS-PREPOST. The theoretical basis is provided for smoothly operating the turbine.