KEYWORDS: Microsoft Foundation Class Library, Data modeling, Polarization, Composites, Actuators, Switching, Statistical analysis, Statistical modeling, Electrodes, Aerospace engineering
Macro Fiber Composites (MFC) are planar actuators comprised of PZT fibers embedded in an epoxy matrix that
is sandwiched between electrodes. Due to their construction, they exhibit significant durability and flexibility in
addition to being lightweight and providing broadband inputs. They are presently being considered for a range
of applications including positioning and control of membrane mirrors and configurable aerospace structures.
However, they also exhibit hysteresis and constitutive nonlinearities that must be incorporated in models to
achieve the full potential of the devices. In this paper, we discuss the development of a model that quantifies the
hysteresis and constitutive nonlinearities in a manner that promotes subsequent control design. The constitutive
model is constructed using the homogenized energy framework for ferroelectric hysteresis and used to develop
resulting system models. The performance of the models is validated with experimental data.
KEYWORDS: Actuators, Data modeling, Polarization, Microsoft Foundation Class Library, Composites, Structured optical fibers, Ferroelectric materials, Aerospace engineering, Systems modeling, Transducers
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.
KEYWORDS: Data modeling, Composites, Actuators, Microsoft Foundation Class Library, Polarization, Scientific research, Ferroelectric materials, Electrodes, Aerospace engineering, Thermal modeling
Macro Fiber Composites (MFC) are planar actuators comprised of PZT fibers embedded in an epoxy matrix that
is sandwiched between electrodes. Due to their construction, they exhibit significant durability and flexibility in
addition to being lightweight and providing broadband inputs. They are presently being considered for a range
of applications including positioning and control of membrane mirrors and configurable aerospace structures.
However, they also exhibit hysteresis and constitutive nonlinearities that must be incorporated in models to
achieve the full potential of the devices. In this paper, we discuss the development of a model that quantifies the
hysteresis and constitutive nonlinearities in a manner that promotes subsequent control design. The constitutive
model is constructed using the homogenized energy framework for ferroelectric hysteresis and used to develop
resulting system models. The performance of the models is validated with experimental data.
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