Railcar cushion device tester and method

Details Railcar cushion device tester and method Railcar cushion device tester and method

G - Physics

01

M

G01M 17/04 (2006.01) B61G 11/00 (2006.01) G01L 5/00 (2006.01) G01M 17/08 (2006.01)

Patent

CA 2116999

RAILCAR CUSHION DEVICE TESTER AND METHOD ABSTRACT OF THE DISCLOSURE A railcar cushion device is tested by applying a force necessary to move the cushion device in a controlled motion at a predetermined velocity or velocities according to a motion profile. The cushion device's performance is analyzed by measuring the force applied at various positions during the motion profile and comparing the force to a standard for cushion devices in good condition at the positions. Alternatively, a damping coefficient or other performance parameter for the cushion device is calculated from the force applied and position of the cushion device and compared to a standard to analyze cushion device performance. A tester for performing cushion device testing comprises a hydraulic ram and an electronic motion controller for applying the force to the cushion device. The motion controller uses motion feedback from a position transducer to provide the controlled motion to the cushion device.

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