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30 March 2010 Inverse model construction for control implementation of macro fiber composite actuators operating in hysteretic regimes
Michael Stuebner; Ralph C. Smith
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Proceedings Volume 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010; 76441J (2010) https://doi.org/10.1117/12.848256
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States
Abstract
Macro Fiber Composite (MFC) actuators utilize PZT fibers embedded in an epoxy matrix for structural actuation. Due to their construction, they are lightweight and provide broadband inputs. Significant advantages of MFC actuators are their high performance, durability, and flexibility when compared to traditional piezoceramic actuators. They are presently being considered for a range of applications including positioning of membrane mirrors and structural control in the aerospace and automotive industry. However, they exhibit varying degrees of hysteresis and constitutive nonlinearities throughout their operating range that must be incorporated in models to achieve the full capabilities of the materials. In this paper, hysteresis is modeled using the homogenized energy model. The inverse model is then used to construct an inverse compensator framework suitable for subsequent control design. The performance of the inverse compensator is illustrated through a numerical example.
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Michael Stuebner and Ralph C. Smith "Inverse model construction for control implementation of macro fiber composite actuators operating in hysteretic regimes", Proc. SPIE 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010, 76441J (30 March 2010); https://doi.org/10.1117/12.848256
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