Abstract
Double NURBS method is used to construct the surface model of a rotor. The technologies of surface extension, surface intersection and surface trimming are studied. Based on the geometric expression of the NURBS curve, a simple and effective method of curve and surface extension is put forward, and the blade surface is then successfully extended with the tangent vector by repeatedly applying the above method. A simplified tracking approach is adopted to realize the surface/surface intersection, of which one surface is analytic surface and the other is free surface.
| Original language | English |
|---|---|
| Pages (from-to) | 289-293 |
| Number of pages | 5 |
| Journal | Shanghai Ligong Daxue Xuebao/Journal of University of Shanghai for Science and Technology |
| Volume | 29 |
| Issue number | 3 |
| State | Published - Jun 2007 |
| Externally published | Yes |
Keywords
- Non-uniform rational B-spline method
- Surface extension
- Surface intersection
- Surface modeling
- Surface trimming
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