Swarm control designs applied to a micro-electro-mechanical gyroscope system (MEMS)

Authors:
Fábio Roberto Chavarette;José Manoel Balthazar;Ivan Rizzo Guilherme;Orlando Saraiva do Nascimento, Jr.
Affiliations:
Faculty of Engineering, Univ Estadual Paulista, Ilha Solteira, SP, Brazil and Ometto Herminio University Center at Araras, UNIARARAS, Engineering Center, Araras, SP, Brazil;Geoscience and Exact Science Institute, Univ Estadual Paulista, DEMAC, Rio Claro, SP, Brazil;Geoscience and Exact Science Institute, Univ Estadual Paulista, DEMAC, Rio Claro, SP, Brazil;Ometto Herminio University Center at Araras, UNIARARAS, Engineering Center, Araras, SP, Brazil
Venue:
IEA/AIE'10 Proceedings of the 23rd international conference on Industrial engineering and other applications of applied intelligent systems - Volume Part II
Year:
2010

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Abstract

This paper analyzes the non-linear dynamics of a MEMS Gyroscope system, modeled with a proof mass constrained to move in a plane with two resonant modes, which are nominally orthogonal. The two modes are ideally coupled only by the rotation of the gyro about the plane's normal vector. We demonstrated that this model has an unstable behavior. Control problems consist of attempts to stabilize a system to an equilibrium point, a periodic orbit, or more general, about a given reference trajectory. We also developed a particle swarm optimization technique for reducing the oscillatory movement of the nonlinear system to a periodic orbit.