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Typical dielectric elastomer structures: dynamics and application in structural vibration control

Zhi-long Huang, Xiao-ling Jin, Rong-hua Ruan, Wei-qiu Zhu
2016 Journal of Zhejiang University: Science A  
The challenges for the research into the dynamics of DE structure and its application for vibration control and some promising theories which may be applied for the research are pointed out.  ...  In the theoretical research into dynamical behavior, from a mechanics viewpoint, DE structures are usually categorized into four types, i.e., spherical, rectangular, tubular, and circular.  ...  A mass of 100 g is mounted on the top plate. The transfer function for different applied voltages can be obtained using this set-up.  ... 
doi:10.1631/jzus.a1500345 fatcat:fx7qf5nfdraihpiu6acue3fbva

A High-Performance Piezoelectric Vibration Sensor

Bahareh Yaghootkar, Soheil Azimi, Behraad Bahreyni
2017 IEEE Sensors Journal  
A lump element model was developed for the piezoelectric vibration sensor and used for the noise modeling of the complete sensor system.  ...  A continuous membrane was employed for the device structure in order to push undesired modes to high frequencies. Sensors with different geometries were designed and fabricated.  ...  Fig. 4 . 4 Exaggerated membrane deformation due to 1 g input for square and circular membranes. (a) Square membrane with width of 200μm (S 200 ). (b) Circular membrane with width of 500μm (C 500 ).  ... 
doi:10.1109/jsen.2017.2707063 fatcat:n2ytwmrvtneufashfb2gfd7mnq

Forced vibration experiments of a rotating extremely thin circular membrane

Nobukatsu OKUIZUMI
2014 Mechanical Engineering Journal  
Vibration modes of a rotating circular membrane with extremely small thickness are investigated.  ...  An experimental system that can rotate and vibrate the circular membrane simultaneously in vacuum is created, and forced vibration experiments are performed with a wide range of rotation and excitation  ...  On the other hand, a large number of studies have been conducted on the vibrations and waves of rotating circular disks that are models for computer memory disks, circular saws, and so forth.  ... 
doi:10.1299/mej.2014dr0054 fatcat:yu3zssopzzbgdfurpvx4m4jtj4

Transfer function analysis of a flexible toroidal structure

1990 Journal of Guidance Control and Dynamics  
We then present the modeling of a flex- ible toroid, as well as a rigid toroid, with a pretensioned membrane in terms of the transfer functions.  ...  ANALYSIS OF A FLEXIBLE TOROIDAL STRUCTURE 883 which is the transfer function of the rigid toroid with rigid membrane. Pole-zero patterns for different values of K are shown in Fig. 3.  ... 
doi:10.2514/3.25415 fatcat:2nx56jkhx5ak3kvw2xqcsxq654

Opto-thermally Excited Fabry-Perot Resonance Frequency Behaviors of Clamped Circular Graphene Membrane

Fu-Tao Shi, Shang-Chun Fan, Cheng Li, Zi-Ang Li
2019 Nanomaterials  
It is important to note that the availability of F-P resonant probe with a defective clamped circular graphene membrane can be improved notably by fabricating the defected circular membrane to a double-end  ...  Moreover, the prestress can be regulated in the range of 108 Pa to 109 Pa by altering the environmental temperature with a scale factor of 14.2 MPa/K.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/nano9040563 pmid:30959952 pmcid:PMC6523719 fatcat:zsacytfg5jfdtahk6nhpd7uhl4

Dynamic Response Analysis of Microflow Electrochemical Sensors with Two Types of Elastic Membrane

Qiuzhan Zhou, Chunhui Wang, Yongzhi Chen, Shuozhang Chen, Jun Lin
2016 Sensors  
With the numerical simulation and practical experiments, a suitable elastic membrane can be designed for different cavity structures.  ...  In simulation experiments, the elastic membrane and the reaction cavity of the MET were analysed in a model based on the multiphysics finite element method.  ...  Polymeric methyl methacrylate (PMMA) Cavity Radius R = 1.2 cm Shape of the Membrane Circular Structure of the Sensing Element Four-electrode structure with circular hole by LTCC fabrication  ... 
doi:10.3390/s16050657 pmid:27171086 pmcid:PMC4883348 fatcat:5s66dgjhk5c43oa4qokd7pzbpm

Examination of a Mechanical Amplifier in the Incudostapedial Joint Gap: FEM Simulation and Physical Model

Martin Koch, Till Eßinger, Matthias Bornitz, Thomas Zahnert
2014 Sensors  
With digital feedback control (using a least mean squares algorithm) in place, the total signal gain is greater than 30 dB for frequencies of 1 kHz and above.  ...  The transducer is tested both in a finite elements method simulation of the middle ear and a physical model of a human middle ear. First, we characterize the sensor and actuator elements separately.  ...  Acknowledgments The study was part of a research project funded by the BMBF(Project 13EZ1011) with the title "implantable sound-sensor-actuator-transducer in the middle ear for instrument-based hearing  ... 
doi:10.3390/s140814356 pmid:25106020 pmcid:PMC4178999 fatcat:gfpbqyyxovdnpderqkttdbkpba

A nonlinear lumped model for ultrasound systems using CMUT arrays

Sarp Satir, F. Levent Degertekin
2015 IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control  
With its versatility, the presented model can be a useful tool for rapid iterative CMUT-based system design and simulation for a broad range of ultrasonic applications.  ...  We present a nonlinear lumped model that predicts the electrical input-output behavior of an ultrasonic system using CMUTs with arbitrary array/membrane/electrode geometry in different transmit-receive  ...  of the modified Green's function via method of images Satir The simulated circular CMUT membrane with 75% electrode coverage.  ... 
doi:10.1109/tuffc.2015.007145 pmid:26470049 pmcid:PMC4627596 fatcat:sxaywxhgyjds7feivm2ksny4um

Theory of Banded Waveguides

Georg Essl, Stefania Serafin, Perry R. Cook, Julius O. Smith
2004 Computer Music Journal  
Circular Membrane Paths of rays on a circular membrane can be constructed in a related fashion. Both examples have two independent spatial dimensions.  ...  Solutions for square, circular, and elliptical membranes are well known.  ... 
doi:10.1162/014892604322970634 fatcat:nzjokoq3r5dn3ma5qptb52iwvq

Page 1199 of American Society of Civil Engineers. Collected Journals Vol. 122, Issue EM12 [page]

1996 American Society of Civil Engineers. Collected Journals  
Mang, EM July 96, p591 Transfer functions Use of Quadratic Transfer Functions to Predict Response of Tension Leg Platforms, Inyeol Paik and Jose M. Roesset, EM Sept. 96, p882-889.  ...  Tension leg platforms Use of Quadratic Transfer Functions to Predict Response of Tension Leg Platforms, Inyeol Paik and Jose M. Roesset, EM Sept. 96, p882-889.  ... 

The Effect of Viscous Air Damping on an Optically Actuated Multilayer MoS2 Nanomechanical Resonator Using Fabry-Perot Interference

Yumei She, Cheng Li, Tian Lan, Xiaobin Peng, Qianwen Liu, Shangchun Fan
2016 Nanomaterials  
The thin circular MoS 2 nanomembrane with an approximate 8-nm thickness was transferred onto the endface of a ferrule with an inner diameter of 125 µm, which created a low finesse F-P interferometer with  ...  Further, a maximum quality (Q) factor of 1.35 for the resonator was observed at 0 • C due to viscous dissipation, in relation to the lower Knudsen number of 0.0025~0.0034 in the tested temperature range  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/nano6090162 pmid:28335290 pmcid:PMC5224651 fatcat:xlhlacuwlbbnbk5dvvqacw7nfu

Gran Cassa and the Adaptive Instrument Feed-Drum [chapter]

Michelangelo Lupone, Lorenzo Seno
2006 Lecture Notes in Computer Science  
The physical-mathematical models of orchestral instruments represent an important theoretical and experimental support for the composer and for the application of new acoustic and performance criteria.  ...  The executive technique attempts to match the vibrational characteristics of the instrument with those of the language but, in many cases, results in aberra-tions of the physical system (e.g. multiple  ...  The oscillation modes of a circular non-rigid membrane, pegged down and stretched along its rim, are known from literature.  ... 
doi:10.1007/11751069_14 fatcat:ntzq2ub24ndixo6bnb2ge3flb4

Microfabrication of coupled fluid–structure systems with applications in acoustic sensing

Robert D. White, Lei Cheng, Karl Grosh
2008 Sensors and Actuators A-Physical  
A fabrication process for manufacturing coupled fluid-structure microsystems is described. This process allows production of a novel class of trapped-fluid acoustic sensors.  ...  A stacked film structure of silicon nitride and boron doped polysilicon is used to reduce residual stresses in the membranes.  ...  The authors would like to thank the staff of the Michigan Nanofabrication Facility for their assistance.  ... 
doi:10.1016/j.sna.2007.08.027 fatcat:nvjhgl27h5ez3b6sqfh3icdbji

Targeted energy transfer from a resonant room to a hybrid electro-acoustic nonlinear membrane absorber: Numerical and experimental study

Pierre-Yvon Bryk, Renaud Côte, Sergio Bellizzi
2019 Journal of Sound and Vibration  
Targeted energy transfer from a resonant room to a hybrid electro-acoustic nonlinear membrane absorber: numerical and experimental study.  ...  Journal of Sound and Vibration, Elsevier, 2019, 460, pp. we observe a range in the excitation level corresponding to SMR where the sound level in the room is limited.  ...  Herzog [7] for his enriching inputs. This work was done in the framework of the Labex MEC.  ... 
doi:10.1016/j.jsv.2019.114868 fatcat:jce5jm6vbrbutergb3gvpbioea

A Wearable Soft Tactile Actuator with High Output Force for Fingertip Interaction

Jung-Hwan Youn, Heeju Mun, Ki-Uk Kyung
2021 IEEE Access  
The proposed soft tactile actuator is constructed of a multi-layered conical DEA structure. This design has safety benefits because it isolates the high voltage components from the contact point.  ...  This paper reports a soft fingertip-mountable tactile actuator based on a Dielectric Elastomer Actuator (DEA), which exhibits high output force over a wide frequency range with a lightweight and soft structure  ...  The soft tactile actuator consists of a DEA active membrane layer and a passive membrane layer which are bonded to a circular pillar placed inside.  ... 
doi:10.1109/access.2021.3058979 fatcat:wgee2nkr2ngknk3v3fmkqvhtqe
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