DISPLACEMENT MEASUREMENT SYSTEM

Abstract

A displacement measurement system enables accurate and easy measurement of the maximum displacement formed on plates which are used for military or civil purposes, especially in vehicle manufacture, and which are subjected to a blast or crash test.

Claims

1. A displacement measurement system used to measure the displacement due to deformation caused by the load created as a result of a blast or crash on plates subjected to a blast or crash test, characterized by comprising a conical measurement end

2. The conical measurement end according to claim 1, characterized by comprising a contact opening and a connection surface.

3. The displacement measurement system according to claim 1, characterized by comprising a worm gear, a main body, a platform, a beam, a connection plate and supporting plates.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0016] FIG. 1: perspective view of the displacement measurement system from below

[0017] FIG. 2: perspective view of the displacement measurement system from above

[0018] FIG. 3: perspective view of the conical measurement end

REFERENCE NUMBERS

[0019] 11. conical measurement end [0020] 12. contact opening [0021] 13. connection surface [0022] 21. main body [0023] 22. worm gear [0024] 23. tray [0025] 31. beam [0026] 32. supporting plate [0027] 33. connection plate [0028] 40. displacement measurement system

DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention relates to a displacement measurement system (40) that enables accurate and easy measurement of the maximum displacement formed on plates used for military or civil purposes, especially in vehicle manufacture, and subjected blast or crash tests.

[0030] The displacement measurement system (40) that is the subject of the present invention comprises a conical measurement end (11), a main body (21) and a worm gear (22) in general. The conical measurement end (11) comprises a contact opening (12) to contact the plate to be subjected to the blast or crash test and a connection surface (13) to provide the connection with the worm gear (22). The connection between the connection surface (13) at the conical measurement end (11) and the worm gear (22) is provided by a platform (23).

[0031] To fix the displacement measurement system (40) on the plate to be tested; a connection plate (33) where the main body (21) is positioned, supporting plates (32) to provide support to the connection plate (33) and a beam (31) to connect the connection plate (33) and the supporting plates (32) to each other are used.

[0032] The position of the conical measurement end (11) with respect to the plate to be subjected to the blast or crash test is regulated by the worm gear (22). Adjusting the height by the worm gear (22) ensures that the contact opening (12) at the conical measurement end (11) completely contacts the plate to be subjected to the blast or crash test. The displacement measurement system (40), fixed through the connection plate (33), supporting plates (32), the beam (31) and the worm gear (22), is become ready for the blast or crash test.

[0033] The plate, which is deformed by the load created by the blast or the crash during the test, also causes the conical measurement end (11) that contacts it to deform. The deformation created on the conical measurement end (11) is of the same quantity with the instantaneous total deformation experienced by the plate being tested. The measurement taken on the conical measurement end (11) gives the total deformation amount of the plate tested. In addition, the amount of the plastic (permanent) deformation on the tested plate is obtained again by measuring on the plate. Thus, the elastic, plastic and total deformation amount created on the plate is measured over test stage.

[0034] Since the measurement made by the displacement measurement system (40) that is the subject of the present invention is completely based on mechanical deformation, since the created deformation has physically measurable quantity and since equipment such as high-speed cameras, strain gages and laser distance sensors are not necessary; displacement measurement with low-cost, minimized error rate, free of restricting effects and equipment safety considerations is carried out.