Results 221 to 230 of about 4,578 (258)
Some of the next articles are maybe not open access.
Smart Materials and Structures, 2015
The electromechanical impedance (EMI) method, which holds great promise in structural health monitoring (SHM), is usually treated as a qualitative method. In this work, we proposed a quantitative EMI method based on a piezoelectric bimorph cantilever using the sample's local contact stiffness (LCS) as the identification parameter for nondestructive ...
Ji Fu, Chi Tan, Faxin Li
openaire +1 more source
The electromechanical impedance (EMI) method, which holds great promise in structural health monitoring (SHM), is usually treated as a qualitative method. In this work, we proposed a quantitative EMI method based on a piezoelectric bimorph cantilever using the sample's local contact stiffness (LCS) as the identification parameter for nondestructive ...
Ji Fu, Chi Tan, Faxin Li
openaire +1 more source
IEEE Sensors Journal, 2018
In this paper, we proposed an online viscosity measurement method based on the electromechanical impedance (EMI) of a piezoelectric torsional transducer. During testing, the contact torsional resonance of the cylindrical rod or host structure system is actuated and sensed by the ring array of shear mode piezoelectric patches.
Gang Wang, Faxin Li
openaire +1 more source
In this paper, we proposed an online viscosity measurement method based on the electromechanical impedance (EMI) of a piezoelectric torsional transducer. During testing, the contact torsional resonance of the cylindrical rod or host structure system is actuated and sensed by the ring array of shear mode piezoelectric patches.
Gang Wang, Faxin Li
openaire +1 more source
The Electromechanical Impedance Method and its Application for Paint Coating Damage Detection
2012This paper reports research findings of a corrosion sensing project for applying the electromechanical impedance method for paint coating damage detection. A piezoceramic patch attached to a structure can excite micro and local structural vibration when an alternating or random low voltage signal is applied.
Xianhua Liu, Roshun Paurobally
openaire +1 more source
PCA-based Method for Damage Detection Exploring Electromechanical Impedance in a Composite Beam
Structural Health Monitoring 2015, 2015This work proposes to identify structural damage in a Structural Health Monitoring (SHM) system using the Electromechanical Impedance based-method. All analysis is carried out considering the time-domain structural response obtained from PZT transducers.
MARIO DE OLIVEIRA, DANIEL INMAN
openaire +1 more source
Smart Materials and Structures, 2013
One of the problems with regard to the electromechanical impedance (EMI) method in the field of structural health monitoring is the relatively high cost requirement of the system. Since the EMI method utilizes a piezoelectric material in small sizes, numerous pieces of equipment are usually required to cover a large area.
Na, S Na, Sam, Lee, HK Lee, Haeng-Ki
openaire +2 more sources
One of the problems with regard to the electromechanical impedance (EMI) method in the field of structural health monitoring is the relatively high cost requirement of the system. Since the EMI method utilizes a piezoelectric material in small sizes, numerous pieces of equipment are usually required to cover a large area.
Na, S Na, Sam, Lee, HK Lee, Haeng-Ki
openaire +2 more sources
Monitoring of Corroded Bolted Joints Connection by Electromechanical Impedance Method
2022 International Conference on Cyber-Physical Social Intelligence (ICCSI), 2022Erjiang Cui +5 more
openaire +1 more source
Materials Research Innovations, 2015
AbstractThe electromechanical impedance damage detection method for composite plates is presented in this paper using piezoelectric materials. The structural damage is characterised by the admittance signals obtained from the piezoelectric materials. The results obtained in this study show that the resonance frequency will change if the damage occurs ...
D. D. Niu, C. Li, Y. Tie
openaire +1 more source
AbstractThe electromechanical impedance damage detection method for composite plates is presented in this paper using piezoelectric materials. The structural damage is characterised by the admittance signals obtained from the piezoelectric materials. The results obtained in this study show that the resonance frequency will change if the damage occurs ...
D. D. Niu, C. Li, Y. Tie
openaire +1 more source
Deep Learning Based Structural Health Monitoring Framework with Electromechanical Impedance Method
2019Electromechanical impedance (EMI) method is a popular structural health monitoring (SHM) technique for monitoring the integrity of a mechanical structure. The EMI method is highly sensitivity to small damage. However, it also has a well-known issue that an impedance signal can be changed by other ambient variations. It has introduced much difficulty in
Alex W. H. Choy, Daniel P. K. Lun
openaire +1 more source
Smart Materials and Structures
Abstract Corrosion induced steel loss is the primary cause for the failure and destruction of steel structures. The electromechanical impedance (EMI) based circular piezoelectric-metal transducer as corrosion sensor, featuring corrosion-sensitivity in its resonance, has been proven to be promising corrosion sensing technique.
Yanpeng Si +4 more
openaire +1 more source
Abstract Corrosion induced steel loss is the primary cause for the failure and destruction of steel structures. The electromechanical impedance (EMI) based circular piezoelectric-metal transducer as corrosion sensor, featuring corrosion-sensitivity in its resonance, has been proven to be promising corrosion sensing technique.
Yanpeng Si +4 more
openaire +1 more source
Electromechanical Impedance Method Applied in a Silicone Rubber Model
Procceedings of the 24th ABCM International Congress of Mechanicl Engineering, 2017Karina Mayumi Tsuruta +5 more
openaire +1 more source