The Design And Simulation System For Turbine Blade Of The Aero-Engine

In all facts that affect the performance of Aero-Engine,the geometrical shape and the aero-dynamical performance of the blade play a significant role in the performance of engine. Therefore,the design of an excellent blade is a key to improve the whole performance of Aero-Engine.Considering the characteristic of the turbine blade, this thesis adopts the NURBS (Non-Uniform Rational B-Spline) model technology to create the three-dimensional blade. Meanwhile, we adopt NURBS method, which is able to unify the form of the conic, the arc and the conicoid, to deal with the small circles of font and back of the model curve of blade. Finally, we combine NURBS method and skinning method to produce the three-dimensional blade,and optimize the producing pace and effect.In order to realize the playing up and the simulation of three-dimensional blade in OpenGL environment, this thesis adopts the VC++.NET as the developing platform and the latest software design philosophy-module and MVC as the design mode.The OpenGL (Open Graphics Library) is a three-dimensional graphics standard with remarkable performance developed in recent years.The OpenGL library provides complicated three-dimensional object and complicated curve and surface(for instance, contours such as Bezier, NURBS and etc), besides the basic point, line and polygon.The OpenGL, therefore, can construct fictitious three-dimensional world conveniently.According to the requirement of the system,this thesis adopts ActiveX technology and GDI+graphic environment to develop an ActiveX-Control, which used in the simulation of the relative two-dimension data of the turbine blade. This ActiveX-Control provides various convenient ways of draft of two-dimensional dispersed dot, friendly interactive interface and the function of magnifying, minifying, moving, picking and changing primitive dot of the figure.The software's all function modules, developed in this thesis,have well engineering application,intact function, simple interface,and a strong profession.Meanwhile,it also has some inherited property and evolution potential,and it is sure that it will be a good assistant tool of the Aero-Engine blade design and simulation unceasing research and development.