基于组合曲面的叶片仿真造型

2018-07-25

作者：魏娟1，孙健1，邵丁2 单位：1西安科技大学；2宝鸡吉利发动机有限公司

摘要：为解决叶片数控加工过程中由于叶片缘头曲率较大且易发生突变，造成加工干涉的问题，提出了一种基于组合叶片的多层螺旋线轨迹规划算法。采用组合曲面的方法，将叶片截面线划分为前缘、后缘、叶盆和叶背四个部分，提出了多层的螺旋轨迹算法。利用VERICUT完成了其虚拟仿真，证明该算法能够满足加工要求。

关键词：叶片；组合曲面；螺旋轨迹；仿真加工

中图分类号：TG659；TH161文献标志码：A

Blade Modeling Simulation Based on Combination Surfaces

Wei Juan，Sun Jian，Shao Ding

Abstract:In order to solve the problem of processing interference caused by large curvature of the blade edge and sudden change in the blade during NC machining，a multilayer spiral trajectory planning algorithm is proposed based on the combined blade.The composite curved surface method is used to divide the blade into four parts: leading edge，trailing edge，leaf pot and leaf back.A multilayer spiral trajectory algorithm is proposed.By using VERICUT，the virtual simulation is completed to prove that the algorithm can meet the processing requirements.

Keywords:blade；combined surface；spiral track；simulation processing