Patent ID: 7909580
Filing Date: 2011-03-22
Classification: F01D,F04D,F05D,G06F,Y10S

Abstract:
1. A method of designing a vane using a quantitative characteristic which is a measure of correlation between: (a) a varying force to which the vane is to be subjected, the varying force having a characteristic frequency, and (b) a vibrational mode of the vane, corresponding to the characteristic frequency of the varying force, the method including the steps of: (i) determining the quantitative characteristic for a first vane design; (ii) determining the quantitative characteristic for a second vane design, the second vane design being a modification of the first vane design such that, as a consequence of the modification, the quantitative characteristic of the second design is reduced in comparison to that of the first design; and (iii) providing visual representations of the first vane design and the second vane design.