【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。更多还原

【Abstract】 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.更多还原