Results 211 to 220 of about 4,578 (258)
Some of the next articles are maybe not open access.
Electromechanical Impedance Method for Applications in Boundary Condition Replication
2019One of the most challenging parts of modeling structural dynamics is realistically replicating boundary conditions from either a theoretical or experimental perspective. In a finite element model, the mechanical impedance of bolted joints in an assembly can be modeled, as a first step, as an equivalent spring-damper connection.
Timothy A. Devine +2 more
openaire +1 more source
Truss Structure Health Monitoring Based on Electromechanical Impedance Method
Applied Mechanics and Materials, 2013Truss structure is widely used in civil engineering applications for its advantages of easy transportation, convenient assembly and uniform loading. However, it is difficult to achieve real-time health monitoring because of connection diversity and complexity of truss structures.
Cun Fu He +4 more
openaire +1 more source
Influence of the excitation frequency in the electromechanical impedance method for SHM applications
SPIE Proceedings, 2009Electromechanical impedance (EMI) technique is receiving increasing attention in the area of structural health monitoring (SHM). In this technique, piezoelectric transducer (PZT) is either surface bonded to or embedded inside the host structure to be monitored.
Venu Gopal M. Annamdas +1 more
openaire +1 more source
Assessment of dental implant stability by means of the electromechanical impedance method
Smart Materials and Structures, 2011Implant stability is a prerequisite for functional recovery in load-bearing prostheses. Robust, reliable and noninvasive methods to assess the bone interface of dental and orthopedic implants are increasingly demanded for clinical diagnosis and direct prognosis.
G. Boemio, P. Rizzo, DE NARDO, LUIGI
openaire +1 more source
Damage Study Using Series and Parallel Electrode in Electromechanical Impedance Method
2021Electromechanical Impedance (EMI) method employs high frequencies range in assessing the local structural damage, using various damage metrics. These dam-age metrics are used as a tool to separate quantitatively EMI spectra into classes of the damage presence level and location in the structure.
Shishir Kumar Singh +2 more
openaire +1 more source
Electromechanical impedance–based damage characterization using spectral element method
Journal of Intelligent Material Systems and Structures, 2016The high-frequency nature of impedance-based structural health monitoring makes the utilization of impedance signature for model-based damage characterization a challenging problem. In this study, a novel damage characterization approach that utilizes impedance signature measured with a single piezoelectric wafer is developed.
Mohammad I. Albakri, Pablo A. Tarazaga
openaire +1 more source
Electromechanical Impedance Method for Damage Detection of Typical Joint on Jacket Platform
Volume 5: Pipelines, Risers, and Subsea Systems, 2018Health monitoring of welded structural joints is a very important factor of the engineering community. Electro-mechanical impedance (EMI) technique allows the direct evaluation of structural dynamics by evaluating its E/M impedance or admittance signatures.
Boying Zhang +4 more
openaire +1 more source
Structural Health Monitoring, 2019
Breast cancer is a public health problem and has the highest incidence and mortality in the female population worldwide. Early detection of breast cancer is essential for reducing the morbidity and mortality associated with this disease. Some methods for detecting breast tumors include ultrasonography, magnetic resonance imaging, positron emission ...
Gabriela Lima Menegaz +5 more
openaire +1 more source
Breast cancer is a public health problem and has the highest incidence and mortality in the female population worldwide. Early detection of breast cancer is essential for reducing the morbidity and mortality associated with this disease. Some methods for detecting breast tumors include ultrasonography, magnetic resonance imaging, positron emission ...
Gabriela Lima Menegaz +5 more
openaire +1 more source
A few-shot electromechanical impedance monitoring method based on a modified prototype network
Smart Materials and Structures, 2023Abstract Bolt loosening monitoring is of great significance to warrant the reliability and safety of bolted structures. The electromechanical impedance (EMI)-based evaluation is effective to perceive bolt loosening. However, EMI signals are highly prone to contamination by temperature fluctuation.
Fei Du +5 more
openaire +2 more sources
Fault Detection in a Rotating Machine by Using the Electromechanical Impedance Method
2015Shaft crack detection is a very serious problem and machines that are suspected of having a crack should be carefully and continuously monitored. The importance attributed to this problem is addressed to the serious consequences when cracks are not early identified in rotating systems.
Aldemir Ap Cavalini +2 more
openaire +1 more source