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Spectral element modeling based structure piezoelectric impedance computation and damage identification

Zhigang GUO, Zhi SUN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 458-464 doi: 10.1007/s11709-011-0133-7

Abstract: This paper presents a numerical simulation study on electromechanical impedance technique for structuralThe basic principle of impedance based damage detection is structural impedance will vary with the occurrencelocation and severity of structural damage through the minimization of the deviations between structural impedance

Keywords： PZT     piezoelectric impedance     optimization     spectral element     damage identification    

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stack configuration on interface resistances in reverse electrodialysis by in situ electrochemical impedance

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1480-9

Abstract:

• RED performance and stack resistance were studied by EIS and LSV.

Keywords： Reverse electrodialysis     Electrochemical impedance spectroscopy     Concentration polarization     Spacer shadow    

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Characteristic of the equivalent impedance for an Article

Zhi-zhong TAN, Hong ZHU, Jihad H. ASAD, Chen XU, Hua TANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 12,   Pages 2070-2081 doi: 10.1631/FITEE.1700037

Abstract: However, research on the complex impedance network is more difficult than that on the resistor network, and it is a problem worthy of study since the equivalent impedance has many different properties fromIn this study, the equivalent impedance of a non-regular × RLC network with an arbitrary boundary isstudied based on the resistance formula, and the oscillation characteristics and resonance propertiesof the equivalent impedance are discovered.

Keywords： RLC network     Resonance properties     Oscillation characteristics     Amplitude-frequency    

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Fuzzy force control of constrained robot manipulators based on impedance model in an unknown environment

LIU Hongyi, WANG Fei, WANG Lei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 168-174 doi: 10.1007/s11465-007-0028-4

Abstract: unknown environment, a control strategy based on fuzzy prediction of the reference trajectory in the impedanceThe experimental results show that the desired trajectory in the impedance model is predicted exactly

Keywords： predictive     tracking     corresponding     stiffness     algorithm    

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Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements

S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 542-556 doi: 10.1007/s11709-018-0496-0

Abstract: of current work is to improve the existing inverse methodology of void-detection based on a target impedanceIn this work, mode-shape dependent shifting phenomenon of peaks of impedance curve with change in voideach iteration starting from each initial guess, the difference between the computationally obtained impedancecurve and the target impedance curve has been reduced.

Keywords： piezoelectricity     impedance curve     mode shapes     inverse problem     flaw detection     curve shifting    

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A fractional-order multifunctionaln-step honeycomb RLC circuit network Article

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1186-1196 doi: 10.1631/FITEE.1601560

Abstract: We derive two new formulae for equivalent resistance in the resistor network and equivalent impedanceIn particular, an step impedance LC network is discussed and many new characteristics of complex impedance

Keywords： Honeycomb network     Equivalent transformation     Fractional differential equation     Impedance characteristics    

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Human–Robot Collaboration Framework Based on Impedance Control in Robotic Assembly Article

Xingwei Zhao,Yiming Chen,Lu Qian,Bo Tao,Han Ding

Engineering 2023, Volume 30, Issue 11,   Pages 83-92 doi: 10.1016/j.eng.2022.08.022

Abstract: An HRC framework for robotic assembly based on impedance control is proposed in this paper.main executor to perform the assembly action, which has the position control, drag and drop, positive impedancecontrol, and negative impedance control modes.To reveal the characteristics of the HRC framework, the switch condition map of different control modes

Keywords： Human–robot collaboration     Impedance control     Robotic assembly    

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Valveless pumping using a two-stage impedance pump

V. C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 311-318 doi: 10.1007/s11465-013-0270-x

Abstract:

Impedance pump is defined as a type of valveless pumping mechanism, where an elastic tube is joinedwith a tube of different impedance, a periodic asymmetrical compression on part of the elastic tubeconducted in the past, but little experimental work was found to exploit the principle of multi-stage impedancethis work is to have an insight on the deliverable head and pumping rate of an open-loop two-stage impedance

Keywords： valveless pumping     open-loop     two-stage     unidirectional     composite    

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New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical None

Mahmoud MODARESI, Hamid LESANI

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 297-307 doi: 10.1631/FITEE.1601689

Abstract: To select the type and value of the impedance of fault current limiters (FCLs) for power network designers, we introduce a new method to calculate the optimum value of FCL impedance depending on its positionDue to the complexity of its impedance, the costs of both real and imaginary parts of FCL impedance areThe optimization of FCL impedance is based on a goal function that maximizes the reduction of the faultboth real and imaginary parts of FCL impedance.

Keywords： Fault current limiter (FCL)     FCL impedance     Short circuit current     Fault current     Power system    

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An investigation on stress distribution effect on multi- piezoelectric energy harvesters

Hailu YANG, Dongwei CAO

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 301-307 doi: 10.1007/s11709-017-0404-z

Abstract: With the fast development of piezoelectric materials and due to its green and renewable characteristics

Keywords： piezoelectric transducer     uneven stress     impedance matching     optimal energy output    

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Advances in tissue state recognition in spinal surgery: a review

Hao Qu, Yu Zhao

Frontiers of Medicine 2021, Volume 15, Issue 4,   Pages 575-584 doi: 10.1007/s11684-020-0816-3

Abstract: Aside from traditional imaging methods, surgical sensing techniques based on force, bioelectrical impedance

Keywords： spinal surgery     tissue state recognition     image     force sensing     bioelectrical impedance    

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Fuzzy impedance control of an electro-hydraulic actuator with an extended disturbance observer Regular Papers-Research Articles

Ming-jie LI, Jian-hua WEI, Jin-hui FANG, Wen-zhuo SHI, Kai GUO

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 9,   Pages 1221-1233 doi: 10.1631/FITEE.1800155

Abstract: Impedance control and an extended disturbance observer are combined to solve this issue.Impedance control is applied to regulate the dynamic relationship between the velocity and output forceParameters of impedance rules are regulated by a fuzzy algorithm.

Keywords： Fuzzy control     Impedance control     Disturbance observer     Parameter uncertainties     Electro-hydraulic actuator    

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Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 854-873 doi: 10.1007/s11705-022-2156-0

Abstract: Hence, this paper reviews research progress regarding ACE in terms of hydrodynamic characteristics and

Keywords： annular centrifugal extractor     hydrodynamic characteristics     structure optimization     the latest application    

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Clinical characteristics and outcomes of biopsy-proven diabetic nephropathy

Li Zhuo, Nianrong Zhang, Guming Zou, Dapeng Chen, Wenge Li

Frontiers of Medicine 2017, Volume 11, Issue 3,   Pages 386-392 doi: 10.1007/s11684-017-0574-z

Abstract: In conclusion, the clinical characteristics of DN vary, and renal biopsy is necessary to determine renal

Keywords： diabetic nephropathy     clinical characteristics     renal biopsy     outcomes    

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Obesity in China: its characteristics, diagnostic criteria, and implications

Weiping Jia

Frontiers of Medicine 2015, Volume 9, Issue 2,   Pages 129-133 doi: 10.1007/s11684-015-0387-x

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Title Author Date Type Operation

Spectral element modeling based structure piezoelectric impedance computation and damage identification

Zhigang GUO, Zhi SUN

Journal Article

stack configuration on interface resistances in reverse electrodialysis by in situ electrochemical impedance

Journal Article

Characteristic of the equivalent impedance for an

Zhi-zhong TAN, Hong ZHU, Jihad H. ASAD, Chen XU, Hua TANG

Journal Article

Fuzzy force control of constrained robot manipulators based on impedance model in an unknown environment

LIU Hongyi, WANG Fei, WANG Lei

Journal Article

Detection of void and metallic inclusion in 2D piezoelectric cantilever beam using impedance measurements

S. SAMANTA, S. S. NANTHAKUMAR, R. K. ANNABATTULA, X. ZHUANG

Journal Article

A fractional-order multifunctionaln-step honeycomb RLC circuit network

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Journal Article

Human–Robot Collaboration Framework Based on Impedance Control in Robotic Assembly

Xingwei Zhao,Yiming Chen,Lu Qian,Bo Tao,Han Ding

Journal Article

Valveless pumping using a two-stage impedance pump

V. C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Journal Article

New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical

Mahmoud MODARESI, Hamid LESANI

Journal Article

An investigation on stress distribution effect on multi- piezoelectric energy harvesters

Hailu YANG, Dongwei CAO

Journal Article

Advances in tissue state recognition in spinal surgery: a review

Hao Qu, Yu Zhao

Journal Article

Fuzzy impedance control of an electro-hydraulic actuator with an extended disturbance observer

Ming-jie LI, Jian-hua WEI, Jin-hui FANG, Wen-zhuo SHI, Kai GUO

Journal Article

Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors

Journal Article

Clinical characteristics and outcomes of biopsy-proven diabetic nephropathy

Li Zhuo, Nianrong Zhang, Guming Zou, Dapeng Chen, Wenge Li

Journal Article

Obesity in China: its characteristics, diagnostic criteria, and implications

Weiping Jia

Journal Article