MODELLING OF TURBINE BLADES FOR STRESS AND DYNAMIC ANALYSIS

摘要

Modelling of turbine blades is of major importance for the analysis and design of turbines for power plants. Various design features for locking grooves, blade root serrations, and lacing wires have to be assessed via stress and dynamic analysis. This paper presents a comparative study and assessment for various 2-D and 3-D blade models addressing one or more of the above considerations. Basic steps of a complete blade dynamic analysis are then provided. Through an actual working example, it is shown that the analysis of full-scale blade models can be achieved through the analysis of reduced models.