Linear Control of a Nonlinear Equipment Mounting Link

Darren Williams, Javad Tagihpour, Hamed Haddad Khodaparast, Shakir Jiffri

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

5 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

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.
Iaith wreiddiolSaesneg
Tudalennau (o-i)679-699
Nifer y tudalennau21
CyfnodolynVibration
Cyfrol4
Rhif cyhoeddi3
Dyddiad ar-lein cynnar31 Awst 2021
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsE-gyhoeddi cyn argraffu - 31 Awst 2021

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