Insert with an external surface which is part of at least one aerodynamic profile of a turbomachine test blade
View Patent ↗The invention relates to an insert for a turbine engine test vane including the insert and a vane body. The insert includes at least two external surfaces. The insert is configured to fit into the vane body, such that the external surfaces are vane aerodynamic surfaces each forming part of a vane aerodynamic profile.
1. A turbine engine aerodynamic test assembly comprising:
a turbine engine test vane including two opposite aerodynamic profiles, the turbine engine test vane comprising:
a first insert including a first central part and a first set of two opposite profiled parts mechanically connected to the first central part so as to be motionless to the first central part, each of the profiled parts of the first set of profiled parts including an external aerodynamic surface, and at least one of the profiled parts of the first set of profiled parts being configured to project on an upstream side and a downstream side of the first central part; and
a vane body including an upstream part, a downstream part, and a housing in which the first insert is configured to fit, the housing being located between the upstream part and the downstream part, and the housing opening up onto the two opposite aerodynamic profiles; and
a second insert including a second central part and a second set of two opposite profiled parts mechanically connected to the second central part so as to be motionless to the second central part, each of the profiled parts of the second set of profiled parts including an external aerodynamic surface, and at least one of the profiled parts of the second set of profiled parts being configured to project on an upstream and a downstream side of the second central part,
wherein the first and second inserts have different shapes and are configured to be removable and housed interchangeably in the housing of the vane body, and
wherein the aerodynamic profiles of the test engine turbine vane including either of the first insert and the second insert is aerodynamically continuous from the upstream part to the downstream part.
2. The turbine engine aerodynamic test assembly according to claim 1 , wherein the first set of profiled parts are made as an integral part with the first central part, and the second set of profiled parts are made as an integral part with the second central part.
3. The turbine engine aerodynamic test assembly according to claim 1 , wherein the first insert and the second insert are configured to fit into the vane body through at least one mortise and tenon assembly.
4. A device comprising: a turbine engine including an aerodynamic test assembly according to claim 1 .
5. A method for assembling an aerodynamic test assembly according to claim 1 into a turbine engine on a test bench, the test vane being an output guide vane, comprising:
a disassembly step during which the turbine engine test vane is disassembled, the upstream part of the vane body being withdrawn radially outwards, the first insert of the test assembly being withdrawn axially through the front of the turbine engine, and
an assembly step during which the second insert of the test assembly being inserted axially through the front of the turbine engine in the vane body, the upstream part of the vane body being inserted radially while being mechanically connected to the second insert, the previously disassembled test vanes being reassembled.