Turbine Exhaust Cylinder / Turbine Exhaust Manifold Bolted Stiffening Ribs

摘要

Disclosed are a casing arrangement and a method to reduce critical panel mode response in a gas turbine casing. The casing arrangement includes a turbine exhaust cylinder connected to a turbine exhaust manifold establishing a fluid flow path, the fluid flow path including an inner and an outer flow path. A plurality of stiffening ribs are coupled to a surface of the inner flow path which effectively increases the stiffness reducing the critical panel mode response.

主权项

1. A casing arrangement to improve component stiffness in a gas turbine, comprising:
a turbine exhaust cylinder; a turbine exhaust manifold connected to the turbine exhaust cylinder establishing a fluid flow path, the fluid flow path including an inner and outer flow path; and a plurality of stiffening ribs coupled to a surface of the inner flow path effective to increase stiffness and reduce critical panel mode response, wherein the flow path is bounded by an outer surface of the inner flow path and an inner surface of the outer flow path.