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3D Solid Modeling Method of Francis Turbine Blade Based on UG

Tao Han

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Abstract

In this paper,research is done on 3D solid modeling method of Francis turbine blades.Based on powerful capacity of materializing surface of UG NX 4.0 and the data of wooden patterns,the blade spline modeling is established by NURBS,and the blade space surface is constructed.Meanwhile,a new method of the free surface extension of Francis turbine blades is introduced,and based on this,a complete solid model of blade is established.The results of smoothness test of runner blades show that this solid modeling method is feasible.3D solid model lays a good foundation for analysis and CNC machining of follow-up blades.

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What this paper is about

In this paper,research is done on 3D solid modeling method of Francis turbine blades.Based on powerful capacity of materializing surface of UG NX 4.0 and the data of wooden patterns,the blade spline modeling is established by NURBS,and the blade space surface is constructed.Meanwhile,a new method of the free surface extension of Francis turbine blades is introduced,and based on this,a complete solid model of blade is established.The results of smoothness test of runner blades show that this solid modeling method is feasible.3D solid model lays a good foundation for analysis and CNC machining of follow-up blades.

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Available abstract

In this paper,research is done on 3D solid modeling method of Francis turbine blades.Based on powerful capacity of materializing surface of UG NX 4.0 and the data of wooden patterns,the blade spline modeling is established by NURBS,and the blade space surface is constructed.Meanwhile,a new method of the free surface extension of Francis turbine blades is introduced,and based on this,a complete solid model of blade is established.The results of smoothness test of runner blades show that this solid modeling method is feasible.3D solid model lays a good foundation for analysis and CNC machining of follow-up blades.

Key concepts: Blade (archaeology), Turbine blade, Machining, Francis turbine, Mechanical engineering, Smoothness, Engineering, Surface (topology)

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