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某型发动机的Ⅰ、Ⅱ级叶片凸台标准样件要求检测的弦长和半弦长尺寸为两面角交线与空间特定截面的交点尺寸,以往的检测方法不再适用。本文就Ⅰ、Ⅱ级叶片凸台标准样件空间尺寸的平台测量方法和尺寸计算进行探讨,提出了解决空间定位难和尺寸计算繁琐的新思路。
A type of engine Ⅰ, Ⅱ-level blade bosses require that the detected chord length and half-chord length be the intersection point of the dihedral angle intersection and the space-specific cross-section, and the conventional detection methods are no longer applicable. This paper discusses the platform measurement method and size calculation of the space dimensions of the first and second level of the blade boss, and proposes a new way to solve the problem of difficult space location and size calculation.