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US 10,380,318 B2Granted
Gas turbine engine
AssigneeROLLS-ROYCE plc
InventorsLuca Di Mare, Max E. Rife, Fernando Barbarossa
Life of this patent
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Abstract
A method of manufacturing a gas turbine engine including designing a row of vanes provided upstream of an asymmetric gas flow volume. The method includes two dimensionally optimizing camberline and stagger angle of each vane, including using orthogonal polynomials to modify the camberline and stagger angle of each vane.
Claims7
A method of manufacturing a gas turbine engine comprising:
- designing a row of vanes provided upstream of an asymmetric gas flow volume, the designing including:
- two-dimensionally optimizing a camberline and a stagger angle of each vane of the row of vanes including using orthogonal polynomials to modify the camberline and the stagger angle of two-dimensional sections of each vane of the row of vanes;
- and
- three-dimensionally optimizing a twist and a bow pattern along a radial direction of each vane with respect to the gas turbine engine by stacking the two-dimensional sections of each corresponding vane along the radial direction and using a Hankel transform to obtain a smooth variation along the radial direction of each vane;
- and
- manufacturing each vane of the row of vanes in accordance with a result of the three-dimensional optimization.
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Dependencies are inferred from the claim text.