| US 7,519,517 B2 | ||
| Blade shape creation program and method | ||
| Naoya Kakishita, Tokyo (Japan); and Itsuhei Kori, Tokyo (Japan) | ||
| Assigned to Mitsubishi Fuso Truck and Bus Corporation, (Japan) | ||
| Filed on Mar. 29, 2005, as Appl. No. 11/93,021. | ||
| Claims priority of application No. 2004-099029 (JP), filed on Mar. 30, 2004. | ||
| Prior Publication US 2005/0249600 A1, Nov. 10, 2005 | ||
| Int. Cl. G06F 17/50 (2006.01); G06F 7/60 (2006.01); G06F 17/10 (2006.01); F04B 17/00 (2006.01) | ||
| U.S. Cl. 703—1 [417/423.1; 417/423.7; 703/2] | 10 Claims |
| 1. A computer-readable storage medium having computer-executable instructions for generating a blade shape, that when executed
performs the method comprising:
defining a camber line on a cross-section of the blade shaped to be generated based on a camber line defining equation having
a first cubic function that defines a leading edge camber line on a leading edge side of a maximum camber point on the camber
line, and a second cubic function that defines a trailing edge camber line on a trailing edge side of the maximum camber point
on the camber line,
wherein the first cubic function and the second cubic function take into consideration a chord length, a position of the maximum
camber point, a maximum camber value, an inflow angle, and a discharge angle of the camber line as design factors, and the
camber line defining equation includes a boundary condition where the first function and the second function have tangents
continuous with each other at the maximum camber point; and
displaying a checklist window on a display device as to the acceptability of the generated camber line.
|