Aeroengine turbine blades have been in service under high temperature,high pressure and high load for a long time.In view of the damage caused by fatigue load that often occurs,CATIA software is used to model a certain type of aero-engine turbine disk simulator,and Python language is used to set the parameters of the model on the ABAQUS platform,and the mechanical re-sponse of the turbine disk simulator under different load and temperature conditions is studied,Determine the dangerous points of components and conduct stress and strain analysis on the nearby elements.Then,through the relevant known data,the calculated re-sult file is imported into Fe-safe to realize the simulation of alternating load and obtain the fatigue life.The S-N curve of the existing nickel-based single crystal superalloy material is used for comparative analysis to calculate the fatigue life when the temperature rea-ches the critical value of the material stability.Finally,the life changes of the dangerous points are compared and studied,and the main factors affecting the fatigue failure are analyzed and some conclusions beneficial to the engineering structure are given.
关键词
疲劳载荷/应力应变/仿真模拟/Fe-safe/寿命计算
Key words
fatigue load/stress and strain/numericl simulation/Fe-safe/life calculation
维普
万方数据