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11. 发明授权

US06604285B2 Method and apparatus for electronically determining nozzle throat area and harmonics 有权
标题翻译：用于电子地确定喷嘴喉部面积和谐波的方法和装置
公开(公告)号：US06604285B2
公开(公告)日：2003-08-12
申请号：US09875268
申请日：2001-06-07
申请人： Steven S Burdgick
发明人： Steven S Burdgick
IPC分类号： B23P1500
CPC分类号： F01D9/041 , F01D5/141 , Y10T29/49321 , Y10T29/49323 , Y10T29/49769 , Y10T29/49771
摘要： A method of determining the throat area between adjacent airfoils in a nozzle set among a plurality of nozzle sets of a machine involves providing a plurality of inspection points on a suction side of a first airfoil and a pressure side of a second airfoil, the second airfoil being adjacent to the first airfoil. A plurality of inspection points are provided on each of an outer sidewall and an inner sidewall, respectively, of the nozzle set. Positions of each of the first and the second airfoils, and the outer and inner sidewalls are determined by measuring the positions of the inspection points. The measured positions of each of the first and second airfoils, and the outer sidewall and the inner sidewall are compared with corresponding predetermined values. A finite area deviation of each of the suction side of the first airfoil, the pressure side of the second airfoil, the outer sidewall, and the inner sidewall are determined, and the individual components are combined to compute a total finite area deviation. A total known throat area is adjusted to offset for the total finite area deviation in order to determine a net total throat area.
摘要翻译：确定机器的多个喷嘴组中的喷嘴组中相邻翼型件之间的喉部面积的方法包括在第一翼型的吸力侧和第二翼型的压力侧提供多个检查点，第二翼型与第一翼型相邻。分别在喷嘴组的外侧壁和内侧壁上设置多个检查点。通过测量检查点的位置来确定第一和第二翼面以及外侧壁和内侧壁中的每一个的位置。将第一和第二翼型件以及外侧壁和内侧壁中的每一个的测量位置与相应的预定值进行比较。确定第一翼面的每个吸力侧，第二翼面的压力侧，外侧壁和内侧壁的有限面积偏差，并且组合各个部件以计算总有限面积偏差。调整总共已知的喉部面积以抵消总有限面积偏差，以便确定净总喉部面积。

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