公开(公告)号：US20050075799A1

公开(公告)日：2005-04-07

申请号：US10663991

申请日：2003-09-17

申请人： William Sumner ,  John Alaksiewicz ,  Chris Bron ,  Mary Phillips ,  Peter Schofield ,  David Kautzmann ,  Brian Marriner

发明人： William Sumner ,  John Alaksiewicz ,  Chris Bron ,  Mary Phillips ,  Peter Schofield ,  David Kautzmann ,  Brian Marriner

IPC分类号： G01B5/28

CPC分类号： F01D5/141 ,  F05D2250/60 ,  F05D2260/80

摘要： A method and system of evaluating a turbine component comprises obtaining data relating to respective surface conditions at a plurality of different surface locations of the turbine component and calculating the total profile efficiency loss for the turbine component based on the data. Calculating the total profile efficiency of the turbine component may include calculating the local profile efficiency loss percentage for each of the surface conditions at the different surface locations (and/or sub-areas of the different surface locations) and calculating an average of the local profile efficiency loss percentages, each of the local efficiency loss percentages being weighted by respective predetermined weight factors. The turbine component may be a nozzle or a bucket and each of the turbine component's surface locations may be an admission suction surface, an admission pressure surface, a discharge suction surface or a discharge pressure surface.

摘要翻译： 评估涡轮机部件的方法和系统包括：获得与涡轮机部件的多个不同表面位置处的各个表面状况相关的数据，并基于该数据计算涡轮机部件的总轮廓效率损失。 计算涡轮机部件的总轮廓效率可以包括计算在不同表面位置（和/或不同表面位置的和/或不同表面位置的子区域）处的每个表面条件的局部轮廓效率损失百分比，并计算局部轮廓的平均值 效率损失百分比，每个局部效率损失百分比由相应的预定权重因子加权。 涡轮机部件可以是喷嘴或铲斗，并且涡轮部件的表面位置中的每一个可以是入口吸力表面，入口压力表面，排出吸力表面或排出压力表面。