CAJ | 학술논문

针对水轮发电机推力支承系统传统设计方法无法精确计算系统内运行特性分布趋势及部件机械形变的问题,笔者以藏木水电站水轮发电机推力轴承为对象,阐述了发电机推力系统主要运行参数的解析计算方法,分析了推力支承部件机械分析有限元方法在推力头、镜板及推力瓦机械变形和油膜厚度等运行特性计算上的应用情况,结果表明,传统解析与有限元相结合的设计方法所得到的支承系统基本运行参数准确,且润滑油膜压力、温度、厚度的详细分布结果均能够满足现代电机设计中对推力支承系统运行特性的精确分析要求.
침대수륜발전궤추력지승계통전통설계방법무법정학계산계통내운행특성분포추세급부건궤계형변적문제,필자이장목수전참수륜발전궤추력축승위대상,천술료발전궤추력계통주요운행삼수적해석계산방법,분석료추력지승부건궤계분석유한원방법재추력두、경판급추력와궤계변형화유막후도등운행특성계산상적응용정황,결과표명,전통해석여유한원상결합적설계방법소득도적지승계통기본운행삼수준학,차윤활유막압력、온도、후도적상세분포결과균능구만족현대전궤설계중대추력지승계통운행특성적정학분석요구.
Aiming at the shortcoming of the traditional method of accurate calculation of operating characteristics for thrust system and deformation of structure parts, based on the studied of Zangmu hydro generator thrust bearing, the main parameters of thrust system were calculated by numerical method, and the operating characteristic inclu-ding deformation of collar, runner, thrust pad and oil film thickness was analyzed by means of the function of struc-tural finite element program. The result of calculation and analysis shows that the basic operation parameter of bear-ing system calculated by the design combining the traditional analysis and finite element method is accurate, with specific distribution of the pressure, temperature and thickness of oil film, can meet the requirement of accuracy a-nalysis of thrust bearing operating characteristics for modern machine design.