| Summary: | 碩士 === 國立交通大學 === 機械工程系 === 91 === This research investigates the friction phenomenon of the linear guide-way of a precision linear motor stage. Friction is one of the important factors resulting in precision decline. Besides, friction is varied with wear condition, lubrication, temperature and humidity during operations.
In this article, a bristle-type nonlinear contact model is developed. In order to identify the static and dynamic parameters of the friction model, several methods are introduced and implemented. Besides, the inertia is estimated by observing the disturbance torque. Based on the experimental observations from previous literatures and our experimental data, a modified friction model for the continuous tracking motion is proposed. Finally, computer simulations and experimental results show the validity of the proposed scheme.
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