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A stator vane assembly for a compressor of a gas turbine engine, including a stator vane having an inner portion and an outer portion, a platform attached to the outer portion of the stator vane, a casing for the gas turbine engine, wherein the outer platform of the stator vane is attached to the ca

A stator vane assembly for a compressor of a gas turbine engine, including a stator vane having an inner portion and an outer portion, a platform attached to the outer portion of the stator vane, a casing for the gas turbine engine, wherein the outer platform of the stator vane is attached to the casing in a manner so that an open area is defined therebetween, and a member positioned within the defined open area for damping vibrations transmitted from the casing to the outer platform.

대표청구항 ▼

1. A method of damping vibrations from an engine casing to a stator vane of a compressor connected to said casing, comprising the following stops:(a) positioning an outer platform attached to an outer portion of said stator vane with respect to said casing so as to define an open area therebetween,

1. A method of damping vibrations from an engine casing to a stator vane of a compressor connected to said casing, comprising the following stops:(a) positioning an outer platform attached to an outer portion of said stator vane with respect to said casing so as to define an open area therebetween, wherein said stator vane outer portion does not extend through said platform; (b) retaining an inner portion of said stator vane in a designated manner; (c) providing a damping member within said defined open area of said casing; and, (d) attaching said outer platform to said casing. 2. The method of claim 1, said casing having a split-line configuration so that first and second circumferential flanges are mated together, wherein said outer platform is attached to said casing by means of a flange extending therefrom which is positioned between and connected to said first and second circumferential flanges.3. The method of claim 1, said casing having a clam shell configuration so that first and second axial flanges are mated together, wherein said outer platform is attached to said casing by means of a rail member incorporated into an inner surface of said casing.4. The method of claim 1, said damping member is made of an elastomeric material.5. The method of claim 1, further comprising the steps of preforming and curing said damping member prior to providing said damping member within said defined open area.6. The method of claim 1, further comprising the step of curing said damping member after positioning it within said defined open area.7. The method of claim 1, further comprising the step of providing an adhesive layer onto a surface of said damping member prior to providing said damping member within said defined area.8. A stator vane assembly for a compressor of a gas turbine engine, comprising:(a) a stator vane having an inner portion and an outer portion; (b) a platform attached to said outer portion of said stator vane, wherein said vane outer portion does not extend therethrough; (c) a casing for said gas turbine engine, wherein said outer platform of said stator vane is attached to said casing in a manner so that an open area is defined therebetween; and (d) a member positioned within said defined open area for damping vibrations transmitted from said casing to said outer platform; wherein said vane inner portion is retained in a designated manner.9. The stator vane assembly of claim 8, wherein said damping member is constructed of an elastomeric material.10. The stator vase assembly of claim 9, wherein said damping member retains elastomeric properties at a temperature of at least 300° F.11. The stator vane assembly of claim 8, wherein said damping member is retained within said defined open area by an adhesive layer.12. The stator vane assembly of claim 8, wherein said damping member is preformed and cured prior to placement within said defined open area.13. The stator vane assembly of claim 8, wherein said damping member includes a plurality of grooves formed in a surface thereof.14. The stator vase assembly of claim 8, wherein said casing has a split-line configuration so that first and second circumferential flanges are mated together, said outer platform further comprising a flange located between said first and second circumferential flanges of said casing.15. The stator vane assembly of claim 8, wherein said dumping member substantially fills said defined open area.16. The stator vane assembly of claim 8, wherein said outer platform is retained to said casing by means of a rail member positioned along as inner surface of said casing.17. The stator vane assembly of claim 16, wherein said defined open area is located between said rail member of said casing and said outer platform.18. A stator vane assembly for a compressor of a gas turbine engine, wherein said gas turbine engine includes a split-line casing having first and second circumferential flanges surrounding said compressor, said stator vane assembly comprising:(a) a stator vane having as inner portion and an outer portion; (b) an outer platform attached to said outer portion of said stator vane; (c) a flange extending from said outer platform which is positioned between and attached to said first and second circumferential flanges of said split-line casing so that an open area is defined between said outer platform and said casing; and (d) a member positioned within said defined open area of said casing for damping vibrations transmitted from said casing to said outer platform. 19. The stator vane assembly of claim 18, wherein said damping member is constructed of an elastomeric material.20. A stator vane assembly for a compressor of a gas turbine engine, wherein said gas turbine engine includes a clam shell casing with first and second axial flanges mated together surrounding said compressor, said casing having a plurality of rail members positioned along an inner surface thereof, said stator vane assembly comprising:(a) a stator vane having an inner portion and an outer portion; (b) an outer platform attached to said outer position of said stator vane, wherein said vane outer portion does not extend therethrough; (c) a pair of end members extending from said outer platform which are positioned within mid attached to said rail member of said casing so that an open area is defined between said stator vane outer platform and said casing; and (d) a member positioned within said defined open area for damping vibrations transmitted from said casing to said outer platform; wherein said vane inner portion is remained in a designated manner.21. The stator vane assembly of claim 20, wherein said damping member is constructed of an elastomeric material.