Abstract
The stochastic vibration of a maglev track inspection vehicle is the main factor that has direct influence on the accuracy of geometrical measurements of the maglev tracks on board whenever the inspection vehicle is operated at a certain speed. Based upon the principle of motions of the specified vehicle, a vibration model of 5 dof for the maglev track inspection vehicle is proposed and a numerical example is made for the analysis of dynamic responses of the vehicle in stochastic excitation of the maglev track. Effects of vibrations of the vehicle on the accuracy of measuring displacement by laser triangle method are examined. Simulation results of lateral, vertical, roll, pitch, and yaw vibrations for the maglev track inspection vehicle equipped with the measuring system of high precision are provided for the design of the similar vehicles.
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