Method for determining and compensating for peening-induced distortion
AssigneeGeneral Electric Company
InventorsDavid Peter Mika, Apostolos Pavlos Karafillis, Dale Robert Lombardo, Steven Robert Hayashi
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Abstract
A method for determining an equilibrium configuration for an object to be subjected to peening includes representing a bulk geometry of the object as a solid body and representing a surface of the object as a surface layer overlying the solid body. The method further includes expanding the surface layer in response to a number of thermal loads to simulate peening and balancing a number of forces on the surface layer and the solid body to determine the equilibrium configuration of the object after peening.
Claims28
A method for determining an equilibrium configuration for an object to be subjected to peening, said method comprising:
- representing a bulk geometry of the object as a solid body;
- representing a surface of the object as a surface layer overlying the solid body;
- expanding the surface layer in response to a plurality of thermal loads to simulate peening;
- and
- balancing a plurality of forces on the surface layer and the solid body to determine the equilibrium configuration of the object after peening.
A method for determining an equilibrium configuration for an object to be subjected to peening, said method comprising:
- representing a bulk geometry of the object as a plurality of solid elements;
- representing a surface of the object as a plurality of surface elements overlying the solid elements;
- specifying a plurality of patches on the surface of the object, each patch including at least one surface element,
- expanding the surface elements within each patch in response to a respective one of a plurality of thermal loads to simulate peening;
- and
- balancing a plurality of forces on the surface elements and the solid elements to determine the equilibrium configuration of the object after peening.
A compensation method for peening-induced distortion of an object to be subjected to peening, said method comprising:
- representing a bulk geometry of the object as a solid body;
- representing a surface of the object as a surface layer overlying the solid body;
- specifying a plurality of patches on the surface layer of the object:
- expanding a portion of the surface layer within each patch in response to a respective one of a plurality of thermal loads to simulate peening;
- balancing a plurality of forces on the surface layer and the solid body to determine an equilibrium configuration of the object after peening;
- and
- adjusting at least one dimension of the object based on the equilibrium configuration determined by said balancing step.
Dependencies are inferred from the claim text.