Title :
Nonlinear control schemes for an uncertain micro-cantilever beam: A simulation study
Author :
Attarzadeh, M.A. ; Jamali, P.
Author_Institution :
Mech. Eng. Dept., Univ. of Sistan & Balouchestan, Zahedan, Iran
Abstract :
Having known that human knowledge have experienced a significant progress so far in micro and nano arena, nobody can deny the importance of designing efficient and robust controller for such relevant systems. According to this, present study aims controller design for uncertain model of a micro-cantilever beam system. In doing so, first, a frequency independent nonlinear model is derived based on governing physical laws with having fringing and squeezed film damping effects fully taken into account. After modeling, sliding mode, and fuzzy sliding mode control methods are applied to the understudy system. The design process is described in detail for both. Then, in order to investigate the control performance, a set of simulations are run. Final results suggest that both controllers perform satisfactorily, however the fuzzy sliding mode controller seems to be slightly better in control performance while it also reduces the so-called chattering effect.
Keywords :
beams (structures); cantilevers; control system synthesis; damping; fuzzy control; nonlinear control systems; robust control; uncertain systems; variable structure systems; chattering effect reduction; control performance; frequency independent nonlinear model; fringing effect; fuzzy sliding mode control method; governing physical laws; nonlinear control schemes; robust controller design; sliding mode control method; squeezed film damping effect; uncertain microcantilever beam model; Automation; FCC; Instruments; Micro-Cantilever beam; fringing and squeezed film damping; fuzzy sliding mode; sliding mode;
Conference_Titel :
Control, Instrumentation, and Automation (ICCIA), 2013 3rd International Conference on
Conference_Location :
Tehran
DOI :
10.1109/ICCIAutom.2013.6912842