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Linear Control of a Nonlinear Equipment Mounting Link
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Javad Taghipour,
Hamed Haddad Khodaparast ,
Shakir Jiffri
Vibration, Volume: 4, Issue: 3, Pages: 679 - 699
Swansea University Authors:
Javad Taghipour, Hamed Haddad Khodaparast , Shakir Jiffri
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DOI (Published version): 10.3390/vibration4030038
Abstract
The linear control of a nonlinear response is investigated in this paper, and a nonlinear model of the system is developed and validated. The design of the control system has been constrained based on a suggested application, wherein mass and expense are parameters to be kept to a minimum. Through t...
| Published in: | Vibration |
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| ISSN: | 2571-631X |
| Published: |
MDPI AG
2021
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa70418 |
| Abstract: |
The linear control of a nonlinear response is investigated in this paper, and a nonlinear model of the system is developed and validated. The design of the control system has been constrained based on a suggested application, wherein mass and expense are parameters to be kept to a minimum. Through these restrictions, the array of potential applications for the control system is widened. The structure is envisioned as a robot manipulator link, and the control system utilises piezoelectric elements as both sensors and actuators. A nonlinear response is induced in the structure, and the control system is employed to attenuate these vibrations which would be considered a nuisance in practical applications. The nonlinear model is developed based on Euler–Bernoulli beam theory, where unknown parameters are obtained through optimisation based on a comparison with experimentally obtained data. This updated nonlinear model is then compared with the experimental results as a method of empirical validation. This research offers both a solution to unwanted nonlinear vibrations in a system, where weight and cost are driving design factors, and a method to model the response of a flexible link under conditions which yield a nonlinear response. |
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| Keywords: |
active vibration control; geometric nonlinearity; nonlinear vibration test |
| College: |
Faculty of Science and Engineering |
| Funders: |
This research was funded by the Engineering and Physical Sciences Research Council (EPSRC) Doctoral Training Partnership (DTP). |
| Issue: |
3 |
| Start Page: |
679 |
| End Page: |
699 |