Method and device for estimating a thickness of a ceramic thermal barrier coating
First Claim
1. An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on support tooling, the method comprising:
- digitally modeling, by a processor, a geometrical shape of the hot part and movements of the hot part relative to the at least one target;
representing, by the processor, the hot part as digitally modeled as a surface mesh;
digitally modeling, by the processor, a geometrical shape of the at least one target;
representing, by the processor, the at least one target as digitally modeled as a surface mesh;
digitally modeling, by the processor, a geometrical shape and a movement of the support tooling for supporting the hot part;
representing, by the processor, the support tooling as digitally modeled as a surface mesh; and
estimating, by the processor, for at least one mesh element of the hot part exposed to radiation from the at least one target during deposition of the coating, a coating thickness to be deposited on the at least one mesh element of the hot part at a given instant by using a radiation model modeling radiation from the at least one target and taking account of a position of the at least one mesh element of the hot part at that given instant relative to the at least one target, the radiation model being defined for a mesh element of the at least one target by;
I(θ
)=I0[cos(θ
)]n wherein;
I(θ
) designates intensity of a ray emitted by the mesh element of the at least one target in a direction at an angle θ
relative to the normal to the mesh element of the at least one target; and
n and I0 designate predetermined constants.
3 Assignments
0 Petitions
Accused Products
Abstract
An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on a support tooling, the method including: digitally modeling a geometrical shape of the hot part and its movements relative to the target; representing the modeled hot part as a surface mesh; and estimating, for at least one mesh element of the hot part exposed to the radiation from the target during deposition of the coating, a coating thickness to be deposited on the mesh element at a given instant by using a radiation model modeling radiation from the target and taking account of the position of the mesh element at that given instant relative to the target.
1 Citation
20 Claims
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1. An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on support tooling, the method comprising:
-
digitally modeling, by a processor, a geometrical shape of the hot part and movements of the hot part relative to the at least one target; representing, by the processor, the hot part as digitally modeled as a surface mesh; digitally modeling, by the processor, a geometrical shape of the at least one target; representing, by the processor, the at least one target as digitally modeled as a surface mesh; digitally modeling, by the processor, a geometrical shape and a movement of the support tooling for supporting the hot part; representing, by the processor, the support tooling as digitally modeled as a surface mesh; and estimating, by the processor, for at least one mesh element of the hot part exposed to radiation from the at least one target during deposition of the coating, a coating thickness to be deposited on the at least one mesh element of the hot part at a given instant by using a radiation model modeling radiation from the at least one target and taking account of a position of the at least one mesh element of the hot part at that given instant relative to the at least one target, the radiation model being defined for a mesh element of the at least one target by;
I(θ
)=I0[cos(θ
)]nwherein; I(θ
) designates intensity of a ray emitted by the mesh element of the at least one target in a direction at an angle θ
relative to the normal to the mesh element of the at least one target; andn and I0 designate predetermined constants. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on support tooling, the device comprising:
-
a processor configured to; digitally model a geometrical shape of the hot part and movements of the hot part relative to the at least one target; represent the hot part as digitally modeled as a surface mesh; digitally model a geometrical shape of the at least one target; represent the at least one target as digitally modeled as a surface mesh; digitally model a geometrical shape and a movement of the support tooling for supporting the hot part; represent the support tooling as digitally modeled as a surface mesh; and estimate, for at least one mesh element of the hot part exposed to the radiation from the at least one target during deposition of the coating, a coating thickness to be deposited on the at least one mesh element of the hot part at a given instant by using a radiation model modeling radiation from the at least one target and taking account of a position of the at least one mesh element of the hot part at that given instant relative to the at least one target, the radiation model being defined for a mesh element of the at least one target by;
I(θ
)=I0[cos(θ
)]nwherein; I(θ
) designates intensity of a ray emitted by the mesh element of the at least one target in a direction at an angle θ
relative to the normal to the mesh element of the at least one target; andn and I0 designate predetermined constants.
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11. An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on support tooling, the method comprising:
-
digitally modeling, by a processor, a geometrical shape of the hot part and movements of the hot part relative to the at least one target; representing, by the processor, the hot part as digitally modeled as a surface mesh; digitally modeling, by the processor, a geometrical shape of the at least one target; representing, by the processor, the at least one target as digitally modeled as a surface mesh; digitally modeling, by the processor, at least one mask suitable for preventing a zone of the hot part being exposed to radiation from the at least one target at a given instant; representing, by the processor, the at least one mask as digitally modeled as a surface mesh, wherein fineness of the surface mesh varies between at least two among the hot part, the target, and the at least one mask; and estimating, by the processor, for at least one mesh element of the hot part exposed to radiation from the at least one target during deposition of the coating, a coating thickness to be deposited on the at least one mesh element of the hot part at the given instant by using a radiation model modeling radiation from the at least one target and taking account of a position of the at least one mesh element of the hot part at that given instant relative to the at least one target, the radiation model being defined for a mesh element of the at least one target by;
I(θ
)=I0[cos(θ
)]nwherein; I(θ
) designates intensity of a ray emitted by the mesh element of the at least one target in a direction at an angle θ
relative to the normal to the mesh element of the at least one target; andn and I0 designate predetermined constants. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on support tooling, the device comprising:
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a processor configured to; digitally model a geometrical shape of the hot part and movements of the hot part relative to the at least one target; represent the hot part as digitally modeled as a surface mesh; digitally model a geometrical shape of the at least one target; represent the at least one target as digitally modeled as a surface mesh; digitally model at least one mask suitable for preventing a zone of the hot part being exposed to radiation from the at least one target at a given instant; represent the at least one mask as digitally modeled as a surface mesh, wherein fineness of the surface mesh varies between at least two among the hot part, the target, and the at least one mask; and estimate, for at least one mesh element of the hot part exposed to the radiation from the at least one target during deposition of the coating, a coating thickness to be deposited on the at least one mesh element of the hot part at the given instant by using a radiation model modeling radiation from the at least one target and taking account of a position of the at least one mesh element of the hot part at that given instant relative to the at least one target, the radiation model being defined for a mesh element of the at least one target by;
I(θ
)=I0[cos(θ
)]nwherein; I(θ
) designates intensity of a ray emitted by the mesh element of the at least one target in a direction at an angle θ
relative to the normal to the mesh element of the at least one target; andn and I0 designate predetermined constants.
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Specification