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Most published Xplore authors for Smart Materials

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Xplore Articles related to Smart Materials

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Application of Smart Structural System for Smart Sustainable Cities

2019 4th MEC International Conference on Big Data and Smart City (ICBDSC), 2019

The developments of City's infrastructural plays a vital role in the development of smart cities. The critical deterioration of transportation infrastructure including highways, tunnels, and bridges, has serious environmental, and economical impact. With the development of materials science and technology, new methods of monitoring, assessing, rehabilitation and repair these infrastructure found their applications in civil engineering. Incorporation of information and ...


Implementation of OCDMA using nested ring resonators

2017 IEEE Photonics Conference (IPC), 2017

We present an implementation of an optical code-division multiple-access (OCDMA) encoder using compact nested two-ring-resonators filter. The encoder is based on silicon on insulator (SOI) technology to filter three wavelengths. The proposed implantation footprint has a 3 0% reduction of those using cascaded-ring-resonators filters.


Active disturbance rejection control for a DEAP rotation actuator with hysteresis using a Bouc-Wen model

2018 Chinese Control And Decision Conference (CCDC), 2018

The paper presents the modeling and control of a dielectric electro-active polymer (DEAP) rotation actuator. The DEAP rotation actuator mainly consists of a DEAP linear displacement actuator and a spring. The Bouc-Wen model is applied to describe hysteresis characteristic existing in the DEAP smart material. A modified linear active disturbance rejection controller is designed by treating hysteresis as disturbance to ...


An Inverse Model of Magnetorheological Elastomer Isolator with Neural Network

2019 Chinese Control And Decision Conference (CCDC), 2019

Due to the controllability of stiffness and damping under the applied external magnetic field, magnetorheological elastomer (MRE) isolator has been proved effectively in the field of vibration control. For the realization of real time vibration control system, an accurate inverse model of MRE isolator is particularly important. In this paper, a recurrent neural network (RNN) is proposed to approximate the ...


Evaluation of piezoelectric energy harvester outcomes in road traffic applications

4th IET Clean Energy and Technology Conference (CEAT 2016), 2016

This paper evaluates the probability of piezoelectric approach as energy scavenging devices for roadway applications using Two-Degree-of-Freedom (2DOF) electromechanical model. The main energy source of the scavenging device is generated from the passing vehicles. As per linear theory of piezo elasticity, a Two-Degree-of-Freedom (2DOF) electromechanical model for the piezoelectric harvesting unit is used in describing the harvester performance in single-lane ...


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Educational Resources on Smart Materials

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IEEE-USA E-Books

  • Application of Smart Structural System for Smart Sustainable Cities

    The developments of City's infrastructural plays a vital role in the development of smart cities. The critical deterioration of transportation infrastructure including highways, tunnels, and bridges, has serious environmental, and economical impact. With the development of materials science and technology, new methods of monitoring, assessing, rehabilitation and repair these infrastructure found their applications in civil engineering. Incorporation of information and communication technologies (ICT) for real- time interaction, and the use of smart materials are the key of smart structure system. Therefore, in this paper types of smart materials, their applications in smart structure, and concept of smart structures focusing on smart bridges were introduced. A framework for smart technique and components of smart bridge systems was proposed towards the development of smart city and Sustainable Environment. Finally, this research could be the base for more research in the field of smart structure system and their applications in Oman.

  • Implementation of OCDMA using nested ring resonators

    We present an implementation of an optical code-division multiple-access (OCDMA) encoder using compact nested two-ring-resonators filter. The encoder is based on silicon on insulator (SOI) technology to filter three wavelengths. The proposed implantation footprint has a 3 0% reduction of those using cascaded-ring-resonators filters.

  • Active disturbance rejection control for a DEAP rotation actuator with hysteresis using a Bouc-Wen model

    The paper presents the modeling and control of a dielectric electro-active polymer (DEAP) rotation actuator. The DEAP rotation actuator mainly consists of a DEAP linear displacement actuator and a spring. The Bouc-Wen model is applied to describe hysteresis characteristic existing in the DEAP smart material. A modified linear active disturbance rejection controller is designed by treating hysteresis as disturbance to obtain high tracking accuracy and ensure system stability. Simulation results demonstrate that the proposed controller has the superiority to a general active disturbance rejection controller in terms of tracking error.

  • An Inverse Model of Magnetorheological Elastomer Isolator with Neural Network

    Due to the controllability of stiffness and damping under the applied external magnetic field, magnetorheological elastomer (MRE) isolator has been proved effectively in the field of vibration control. For the realization of real time vibration control system, an accurate inverse model of MRE isolator is particularly important. In this paper, a recurrent neural network (RNN) is proposed to approximate the inverse dynamic behaviours of a MRE isolator in shear-compression mixed mode to search for the optimal network configuration. The output forces of the isolator are obtained under different loading conditions (variable displacement with amplitudes and frequencies) by experiments. Different from the direct current in forward mode of MRE isolator, the current used for training and validating of the network model is sinusoidal signal, which is also approximate to the real-time control application well. Experimental results show that the proposed RNN can represent inverse dynamic of the MRE isolator satisfactorily.

  • Evaluation of piezoelectric energy harvester outcomes in road traffic applications

    This paper evaluates the probability of piezoelectric approach as energy scavenging devices for roadway applications using Two-Degree-of-Freedom (2DOF) electromechanical model. The main energy source of the scavenging device is generated from the passing vehicles. As per linear theory of piezo elasticity, a Two-Degree-of-Freedom (2DOF) electromechanical model for the piezoelectric harvesting unit is used in describing the harvester performance in single-lane and two-lane road. In this paper, the APC piezoelectric ceramic (APC 855) has been chosen as the favoured piezoelectric material as it had a high piezoelectric charge constant and high piezoelectric constant values. Also, a Cellular Automata (CA) model has been utilised in traffic model. Single circle-shaped Piezoelectric Cymbal Transducer (PCT) has been applied in a single-lane and two-lane traffic models in which the generated power in both cases are 35 mW and 51 mW, respectively. With respect to these outcomes, a total of 170 kW/ km of power could be generated if a multiple PCT arrays are laid along the highway road. Hence, it has been shown that the proposed electromechanical-traffic model possesses a great potential to be used in the applications of the macro-scale roadway electric power generation systems.

  • Research on the Realization of a Electromechanical Pressure Micropump Used in Electrical Equipment

    The paper aims to determine the characteristics of Nitinol smart materials with memory of the shape and to determine their behavior on repeated cycles of use. The system consists of a protrusion of a electromechanical pressure micro-pump made on the basis of current-controlled Nitinol arc elements, with the purpose of regulating the pressure inside a fluid enclosure. In the paper there will be presented characteristics concretized in the pressure variation inside the enclosure with the pressure gauge connected at the opposite end of the container, both positive pressure and negative pressure depending on the group of springs in Nitinol.

  • Photo-tunable molecular recognizing smart material for gas sensing

    We developed a dynamic photo-tunable gas adsorbent based on smart (photo sensitive) material and molecularly imprinted polymer (MIP) technology [1]. Gas adsorption property of the material, mixture of photochromic materials and polymethyl methacrylate (PMMA), can be controlled reversible and continuously by irradiation of with light different wavelength. As a result, gas sensor which is composed of a quartz crystal microbalance (QCM) coated with the developed adsorbent was fabricated. This sensor system can detect a certain gas molecule corresponding to the adsorbent property from gas mixture with only one sensor node.

  • Nanocomplexes For in situ Detection of Small Molecules With Switchable Optical Properties

    Nanoparticles are a universal tool used in broad range of various applications from constructing of smart materials to biomedicine. One of the most challenging fields is development of multifunctional theranostic agents. We developed and analysed the performance of a novel nanoparticle based smart material able to reversibly change its optical properties in response to presence of small molecules in situ.

  • Optimized PID tracking control for piezoelectric actuators based on the Bouc-Wen model

    An optimized PID controller designed for piezoelectric actuator based on classical Bouc-Wen(BW) hysteresis model is proposed in this paper. Generally, hysteresis nonlinearity existing in the smart materials such as piezoelectric actuators can cause undesirable inaccuracy. In this paper, the classical BW hysteresis model is presented and parameters identification via the particle swarm optimization (PSO) approach for piezoelectric actuator is performed. For the purpose of obtaining a better tracking performance, the PSO method is adopted again to search for each parameter. The testing results validate that the optimized PID controller can enhance the PZT's tracking accuracy.

  • Robust Control of Systems with Output Hysteresis and Input Saturation Using a Finite Time Stability Approach

    This paper presents a robust control approach for a class of nonlinear dynamic systems consisting of a linear plant connected in series with a hysteresis operator, and affected by control input saturation. Such a class of systems commonly appears in applications concerning smart materials, in particular thermal shape memory alloys wire actuators. The goal of this paper is to design a robust controller, in the form of an output PI law, which ensures set-point regulation with a desired decay rate and, at the same time, accounts for the effects of both hysteresis and input saturation. The resulting controller appears as attractive on the implementation stand-point, since no accurate hysteresis compensator is required. In order to deal with the proposed problem, the hysteretic plant is first reformulated as a linear parameter-varying system. Subsequently, a finite time stability approach is used to impose constraints on the control input. A new set of bilinear matrix inequalities is developed, in order to perform the design with reduced conservatism by properly exploiting some structural properties of the model. The effectiveness of the method is finally validated by means of a numerical case of study.



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