Component inspection method
Active Publication Date: 2018-10-18
ROHR INC
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Benefits of technology
The present patent provides an inspection method for components using a non-contact inspection system. The method involves capturing images of a pattern of light projected onto the component and processing the image data to provide a model of the component. The model data is then compared to design data to determine any deviation between the two. The technical effect of this invention is to provide a more efficient and accurate method for inspecting components, particularly in industries such as aerospace, which require high precision and reliability.
Problems solved by technology
However, during such an inspection method, marker tapes are typically applied onto the surface of the object.
Such a process may be time consuming and require operators applying the tape to have specialized training.
The cost of the marker tape can also be relatively expensive.
Method used
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[0030]The present disclosure includes methods and systems for inspecting one or more components. An exemplary component for such inspection is a component of an aircraft; e.g., a commercial airliner. The component, for example, may be configured as or included in an aircraft propulsion system, an aircraft fuselage, an aircraft wing, an aircraft stabilizer or an aircraft pylon. Where the component is included in an aircraft propulsion system, the component may be configured as a part of a nacelle such as, but not limited to, an inlet structure (e.g., an inlet lip, a forward portion of a fanlet, etc.) of the nacelle. The present disclosure, however, is not limited to the foregoing exemplary aircraft components. Furthermore, the present disclosure is not limited to aircraft component inspection. However, for ease of description, the component is described below as an inlet structure.
[0031]In the case of an inlet structure or other aircraft components, the inspection methods of the pres...
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An inspection method includes: receiving image data from a non-contact inspection system, the image data indicative of a plurality of captured images of light projected onto a component system comprising a component; processing the image data using a processing system to provide model data that models at least a portion of a surface of the component; comparing the model data to nominal data for a design model for the component using the processing system to determine a subset of the model data that is closest to the nominal data; identifying model data points in the subset of the model data based on identities of correlated nominal data points in the nominal data using the processing system to provide measurement data; and comparing the measurement data to design data for the design model for the component using the processing system to determine deviation between the measurement data and the design data.
Description
BACKGROUND1. Technical Field[0001]This disclosure relates generally to inspection methods and, more particularly, to inspection of one or more components using, for example, a non-contact inspection system.2. Background Information[0002]Various inspection methods are known in the art. In some inspection methods, a white light non-contact inspection system is utilized to obtain data points related to a surface of an object. These data points are then processed and reviewed to determine whether the surface of the object is within tolerance of a design for that object. However, during such an inspection method, marker tapes are typically applied onto the surface of the object. Typically, such marker tapes need to be placed in precise locations on the object such that data associated with those marker tapes obtained during the inspection can be compared to nominal data. Such a process may be time consuming and require operators applying the tape to have specialized training. The cost of...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G06T7/00G06T7/73
CPCG06T7/0006G06T7/001G06T2207/30204G06T2207/30164G06T2207/10152G06T7/74G06T2200/04G06T2207/10016G06T2207/10028G06T2207/30208G06T7/521
Inventor ROJAS, JONATHAN D.BRANNOCK, LARRY W.
Owner ROHR INC