Scholarly Works, Center for Intelligent Material Systems and Structures (CIMSS)
Browse by
Recent Submissions
-
Self-Healing of Ionomeric Polymers with Carbon Fibers from Medium-Velocity Impact and Resistive Heating
(Hindawi, 2013-06-20)Self-healing materials science has seen significant advances in the last decade. Recent efforts have demonstrated healing in polymeric materials through chemical reaction, thermal treatment, and ultraviolet irradiation. ... -
Active Vibration Isolation Using an Induced Strain Actuator with Application to Automotive Seat Suspensions
(Hindawi, 2001-01-01)Active vibration isolation of automotive seats requires actuators that achieve millimeter-range displacements and forces on the order of 300 N. Recent developments in piezoceramic actuator technology provide a means for ... -
Modeling of Shock Propagation and Attenuation in Viscoelastic Components
(Hindawi, 2001-01-01)Protection from the potentially damaging effects of shock loading is a common design requirement for diverse mechanical structures ranging from shock accelerometers to spacecraft. High damping viscoelastic materials are ... -
Enhanced Piezoelectric Shunt Design
(Hindawi, 2003-01-01)Piezoceramic material connected to an electronic shunt branch circuit has formed a successful vibration reduction device. One drawback of the conventional electronic shunt circuit is the large inductance required when ... -
Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System
(Hindawi, 2005-01-01)Metamodels have been used with success in many areas of engineering for decades but only recently in the field of structural dynamics. A metamodel is a fast running surrogate that is typically used to aid an analyst or ... -
Active vibration and structural acoustic control of shape memory alloy hybrid composites: Experimental results
(Acoustical Society of America, 1990-12-01)Shape memory alloy hybrid composites have been shown both by analytical simulations and experiments to be effective adaptive materials for active vibration and structural acoustics control [Rogers and Robertshaw, Engineering ... -
Active structural acoustic control of broadband disturbances
(Acoustical Society of America, 1992-09-01)A control design technique is developed to actively suppress the acoustic power radiated from a structure, with negligible fluid loading, that is persistently excited by narrow-band or broadband disturbances. The problem ... -
Power consumption of piezoelectric actuators driving a simply supported beam considering fluid coupling
(Acoustical Society of America, 1994-09-01)An electromechanical impedance model is applied to the case of a simply supported beam in an infinite rigid baffle with a fluid medium on one side. The effects of the fluid medium are included in the impedance analysis by ... -
Dynamic analysis of piezoelectric actuator-driven circular rings using an impedance approach
(Acoustical Society of America, 1994-09-01)This paper presents a dynamic model for the response of a circular ring excited by piezoelectric transducer (PZT) actuators bonded on the ring surface. The dynamic response is determined based on the dynamic interaction ... -
Modeling of induced strain actuation of shell structures
(Acoustical Society of America, 1995-05-01)Based on the thin-shell Donnell theory, a model to represent the action of discrete induced strain actuator patches symmetrically bonded to the surface of a circular cylindrical shell has been developed. The model provides ... -
Modeling of distributed piezoelectric actuators integrated with thin cylindrical shells
(Acoustical Society of America, 1994-09-01)The dynamic interaction between induced strain piezoelectric (PZT) actuators and their host structures is often ignored in the modeling of intelligent structures. A more realistic investigation of intelligent material ... -
Nonlinear piezoelectricity in electroelastic energy harvesters: Modeling and experimental identification
(American Institute of Physics, 2010-10-01)We propose and experimentally validate a first-principles based model for the nonlinear piezoelectric response of an electroelastic energy harvester. The analysis herein highlights the importance of modeling inherent ... -
Computational analysis of ionic polymer cluster energetics
(American Institute of Physics, 2005-06-01)In recent years there has been considerable study of the potential mechanisms underlying the electromechanical response of ionic-polymer-metal composites. The most recent models have been based on the response of the ... -
Ionic polymer cluster energetics: Computational analysis of pendant chain stiffness and charge imbalance
(American Institute of Physics, 2005-06-15)In recent years there has been considerable study of the potential mechanisms underlying the electromechanical response of ionic-polymer-metal composites. The most recent models have been based on the response of the ... -
Modeling the electrical impedance response of ionic polymer transducers
(American Institute of Physics, 2008-07-01)An analytical study is presented that investigates the electrical impedance response of the ionic polymer transducer. Experimental studies have shown that the electromechanical response of these active materials is highly ... -
High surface area electrodes in ionic polymer transducers: Numerical and experimental investigations of the electro-chemical behavior
(American Institute of Physics, 2011-04-01)Ionomeric polymer transducer (IPT) is an electroactive polymer that has received considerable attention due to its ability to generate large bending strain (> 5%) and moderate stress at low applied voltages (+/-2 V). Ionic ... -
Transport modeling in ionomeric polymer transducers and its relationship to electromechanical coupling
(American Institute of Physics, 2007-01-15)Ionomeric polymer transducers consist of an ion-conducting membrane sandwiched between two metal electrodes. Application of a low voltage (< 5 V) to the polymer produces relatively large bending deformation (> 2% strain) ... -
Resonant manifestation of intrinsic nonlinearity within electroelastic micropower generators
(AIP Publishing, 2010-12-01)This letter investigates the nonlinear response of a bimorph energy harvester comprised of lead zirconate titanate (PZT-5A) laminates. For near resonant excitations, we demonstrate significant intrinsic nonlinear behavior ... -
Power generation and shunt damping performance of a single crystal lead magnesium niobate-lead zirconate titanate unimorph: Analysis and experiment
(AIP Publishing, 2008-12-01)This letter investigates the power generation and shunt damping performance of the single crystal piezoelectric ceramic lead magnesium niobate-lead zirconate titanate (PMN-PZT) analytically and experimentally. PMN-PZT is ... -
On the energy harvesting potential of piezoaeroelastic systems
(AIP Publishing, 2010-05-01)This paper investigates the concept of piezoaeroelasticity for energy harvesting. The focus is placed on mathematical modeling and experimental validations of the problem of generating electricity at the flutter boundary ...
RSS 1.0