Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6954570 | Mechanical Systems and Signal Processing | 2018 | 11 Pages |
Abstract
The paper presents an electromagnetic system that has been developed to measure the quasi-static and dynamic behavior of machine-tool spindle, at different spindle speeds. This system consists in four Pulse Width Modulation amplifiers and four electromagnets to produce magnetic forces of ±190â¯N for the static mode and ±80â¯N for the dynamic mode up to 5â¯kHz. In order to measure the Frequency Response Function (FRF) of spindle, the applied force is required, which is a key issue. A dynamic force model is proposed in order to obtain the load from the measured current in the amplifiers. The model depends on the exciting frequency and on the magnetic characteristics of the system. The predicted force at high speed is validated with a specific experiment and the performance limits of the experimental device are investigated. The FRF obtained with the electromagnetic system is compared to a classical tap test measurement.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
David Tlalolini, Mathieu Ritou, Clément Rabréau, Sébastien Le Loch, Benoit Furet,