基于等距线的叶片截面中弧线计算方法  

Calculation method on central arced curve of blade section based on equidistance line

作　　者：张力宁[1] 张定华[1] 陈志强[1] 

机构地区：[1]西北工业大学现代设计与集成制造技术教育部重点实验室

出　　处：《机械设计》2006年第5期39-41,共3页Journal of Machine Design

基　　金：航空科学基金资助项目(00H53076);国家教委博士点基金资助项目(20006992)

摘　　要：提出一种基于等距线的叶片截面中弧线提取方法。区别于以往的离散搜索方法,该方法将中弧线提取问题转化为求等距线自交点问题,并提出了相应的逐层细分求交算法和确定其它重要几何参数的方法。与离散搜索的方法相比,这种基于连续模型的方法可以较高的精度提取出中弧线,降低了算法复杂度。A kind of method for the collection of central arced curve of blade section based on equidistance curve was put forward. To be different from the former dispersed searching method, this method let the collection problem of central arced curve be transformed into the solution problem of finding the self-intersection point of equidistance curve. The corresponding layer-by-layer fine-division intersection solving algorithm and the method of determining other important geometric parameters were put forward. Comparing with the dispersed searching method, this method, based on continuous model, could collect the central arced curve with a comparatively high precision, and lower the complexity of algorithm.

关 键 词：等距线 中弧线 光顺 叶片 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]