Dynamic Identification and Modelling of a Pantograph
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The main objective of this thesis is to measure and determine the dynamic properties of a measurement pantograph, and then create a numerical model with the same properties. The purpose of the model is to give a better representation of the actual behavior of the pantograph compared to the previously used lumped mass models. The thesis presents the process from very simple operation of the pantograph and contact force measurements, to more advanced studies of the attachment of the accelerometers and the development of test setups and procedures to measure the dynamic properties. The measurements done on the dynamic properties are then analyzed using scripts in MATLAB and the modal analysis software ARTeMIS. Using the results from the dynamic analysis, a numerical 3D model is created in Abaqus CAE with the same dynamic behavior as the pantograph in the lab.