This invention relates to the field of structural testing and, more specifically, to an apparatus for structural testing.
The periodic, nondestructive testing of large structures, such as large passenger vehicles, is important to assist in the evaluation of structural integrity. For example, aircraft undergo nondestructive testing in order to detect structural variations or changes such as structural fatigue. An example of a aircraft component that is periodically inspected for structural changes or variations is the outer surface of the fuselage. However, the size of the fuselage makes nondestructive testing a difficult undertaking.
One approach used for nondestructive testing of an aircraft fuselage and other large structures involves a trained operator performing tests with portable equipment. This approach has a number of drawbacks including that it is a slow process and requires a specially trained individual. Another approach used for the nondestructive testing of large structures utilizes a robotic vehicle. The robotic vehicle automatically maneuvers itself to the test subject and performs nondestructive testing at various points on the test subject. However, this degree of automation results in high costs and complex systems. Additionally, the proper mounting and alignment of testing devices is difficult.
In view of the foregoing, it is desirable to provide an apparatus for structural testing that addresses one or more of the foregoing deficiencies or other deficiencies not implicitly or expressly described. Furthermore, other desirable factors and characteristics of the present invention will become apparent from the subsequent detailed description and the appended claims, taken in conjunction with the accompanying drawings and the foregoing technical field and background.
In one embodiment of the invention, an inspection device for performing nondestructive testing on a test subject includes a manually controlled inspection cart. The inspection device also includes a nondestructive testing platform and a computer coupled to the inspection cart. The computer is operable to control the movement of the nondestructive testing device when the inspection device is within a predetermined distance from the test subject.
In another embodiment, a nondestructive testing platform comprises a manually operated inspection cart. The testing platform further comprises a vertical tower mounted on the inspection cart and a boom mounted on the vertical tower. The boom is operable to move vertically along the vertical tower; and a nondestructive testing device mounted on to the boom.
A more complete understanding of the present invention may be derived by referring to the detailed description and claims when considered in conjunction with the following figures, wherein like reference numbers refer to similar elements throughout the figures:
The following detailed description is merely illustrative in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description.
The electronic rack 112 can include controls for operating the nondestructive test device and the moving components of the inspection station 102. The electronic rack 112 can also include a computer 113, such as a laptop computer, that is operable to provide automatic control of the nondestructive testing operation, as well as to collect generated data. For example, the computer 113 can control the movement of various motors and other equipment to adjust the positioning of the nondestructive test device 116. The computer 113 can also provide information as to the relative location of the inspection station 102.
Sliding table 106, illustrated in detail in
Referring to
Vertical tower 108 supports boom 110 and allows for the boom 110 to move up and down to adjust the position of the nondestructive test device 116, thereby providing one degree of freedom to the inspection station 104. As seen in
Turning to
Turning to
In
In an exemplary embodiment of the present invention, a user maneuvers the inspection station 102 proximate to where the testing will take place. For example, the user can maneuver the inspection station 102 up to an aircraft and stop at a predetermined location. The inspection station 102 can then, either through manual control or automatic control, be maneuvered to place the nondestructive test device 116 to the proper location and alignment to use the nondestructive test device and the nondestructive test. In the exemplary embodiment, where the nondestructive test device 116 is manually maneuvered to a test position, the user can determine the place to position the nondestructive test device 116 based on either what the users can see directly or through the use of a visual guide such as a camera.
Additionally, pressure sensors 903 can be used to provide information as to how much force is contacting the test subject in situation where the nondestructive testing device touches the surface of the test subject. For example, ultrasonic testers typically require contact with the test subject.
The example embodiment or embodiments described herein are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing the described embodiment or embodiments. It should be understood that various changes can be made in the function and arrangement of elements without departing from the scope of the invention as set forth in the appended claims and the legal equivalents thereof.
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20070044581 A1 | Mar 2007 | US |