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US 10,295,420 B2Granted
Nacelle deflection measurement assembly
AssigneeUnited Technologies Corporation
InventorsJoshua V. Wood, Michael Joseph Murphy, Justin R. Urban, Robert E. Malecki, William W. Rice, David W. Lamarre
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Abstract
A deflection measurement assembly according to an example of the present disclosure includes, among other things, a nacelle arranged about an axis to define a flow path, a cable assembly arranged at least partially about the axis, and a transducer coupled to the cable assembly.
Claims11
A propulsion system, comprising:
- a gas turbine engine defining an engine axis, the engine including a turbine section configured to drive a fan section;
- a nacelle assembly including a fan nacelle and a core cowling arranged about the engine axis to define a bypass flow path, and the core cowling defining a core flow path, the fan nacelle including a stationary first nacelle section and a second nacelle section, the second nacelle section axially moveable along the engine axis in a direction away from the first nacelle section such that the second nacelle section defines a radial opening to the bypass flow path;
- and
- a deflection measurement assembly, comprising:
- a cable assembly coupled to the nacelle assembly, wherein the cable assembly includes at least one cable disposed at least partially about a perimeter of the second nacelle section;
- and
- a transducer coupled to the cable assembly, the transducer configured to be actuated in response to a change in a cross-sectional area of at least one of the bypass flow path and the core flow path.
4 more elements
A method of measuring deflection of a nacelle assembly, comprising:
- providing a nacelle defining a flow path that extends along an engine axis, the nacelle including a stationary first nacelle section and a second nacelle section, the second nacelle section axially moveable along the axis in a direction away from the first nacelle section such that the second nacelle section a radial opening to the flow path;
- positioning a cable assembly about the engine axis, the cable assembly moveable relative to the axis in response to a change in a cross-sectional area of the flow path, wherein the cable assembly includes at least one cable disposed at least partially about a perimeter of the second nacelle section;
- and
- actuating a transducer is response to movement of the cable assembly.
1 more element
Dependencies are inferred from the claim text.