Dynamic Modeling and Vibration Analysis of a Ball-screw Drive System
نویسندگان
چکیده
Many of the papers studying the screw-drive system dynamic model concentrated on the control methodologies that is why vibrational models are either simple lumped models or simplified flexible beam models. In this paper a screw-drive system dynamic model and its vibrations are discussed. The screw is considered as an EulerBernoulli type flexible beam with fixed-free boundary conditions and the table inertia is considered as a moving force on the screw. First three modes of the longitudinal and torsional vibration of the flexible screw are extracted. The table travels with a triangular velocity motion profile. Table vibrations are studied with respect to the ratio of the table mass to the screw mass and the screw length.
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