SCALING TO CUSTOM-SIZED TURBOMACHINE AIRFOIL METHOD

摘要

A method of engineering a turbomachine airfoil may include providing a master airfoil configuration having a preset outer and inner radius relative to an axis of rotation thereof. The master airfoil configuration may be radially scaled to a custom-sized turbomachine airfoil having an outer radius different than the preset outer radius of the master airfoil configuration, and/or an inner radius different than the preset inner radius of the master airfoil configuration. Tuning a frequency of the custom-sized turbomachine airfoil by changing a parameter of at least one of a part span shroud and a tip shroud may then be performed. Axial scaling may also be performed. The custom-sized turbomachine airfoil may be employed in the turbomachine without performing wheel box testing, and may exhibit substantially similar operational characteristics as the master airfoil configuration.

主权项

1. A method of engineering a turbomachine airfoil, the method comprising:
providing a master airfoil configuration having a preset outer radius and a preset inner radius relative to an axis of rotation thereof; and radially scaling the master airfoil configuration to a custom-sized turbomachine airfoil having at least one of: an outer radius different than the preset outer radius of the master airfoil configuration and an inner radius different than the preset inner radius of the master airfoil configuration.