Benefits and challenges of over-actuated excitation systems
TLDR
In this article, the benefits and technical challenges of controlling over-determined and over-actuated excitation systems ranging from 1-DOF to 6DOF are discussed, and generalized methods for determining the drive output commands and the actuator input transform are presented.Abstract:
This paper provides a comprehensive discussion on the benefits and technical challenges of controlling over-determined and over-actuated excitation systems ranging from 1-DOF to 6-DOF. The primary challenges of over-actuated systems result from the physical constraints imposed when the number of exciters exceeds the number of mechanical degree-of-freedom. This issue is less critical for electro-dynamic exciters which tend to be more compliant than servo-hydraulic exciters. To facilitate the technical challenges discussion, generalized methods for determining the drive output commands and the actuator input transform is presented. To further provide insights into the problem, over-actuated 1-DOF and 6-DOF examples are provided. Results are presented to support the discussions.read more
Citations
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Validation Techniques for 6-DOF Vibration Data Acquisition
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A simplified modelling and analysis of six degree of freedom random vibration test
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Driving a motion platform with a vibration control software for multi-axis environmental testing: challenges and solutions.
Umberto Musella,Umberto Musella,Umberto Musella,Ludovico Zanellati,Marco Grottoli,Francesco Celiberti,Bart Peeters,Francesco Marulo,Patrick Guillaume +8 more
TL;DR: This work aims to show the challenges and the solutions to combine a six DOFs motion simulation platform with an advanced off-the-shelf MIMO vibration control software and data acquisition hardware, and show the possibility of effectively using the platform for both multi-axis random vibration control (MIMO Random) testing and time waveform replication (TWR).
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