Results 1 to 10 of about 2,068 (165)

Mode Localization and Eigenfrequency Curve Veerings of Two Overhanged Beams

open access: yesMicromachines, 2021
Overhang provides a simple but effective way of coupling (sub)structures, which has been widely adopted in the applications of optomechanics, electromechanics, mass sensing resonators, etc.
Yu V Petrov, Ya-Pu Zhao, Zhao Ya-Pu
exaly   +3 more sources

Monitoring the Early Strength Development of Cement Mortar with Piezoelectric Transducers Based on Eigenfrequency Analysis Method

open access: yesSensors, 2022
Monitoring the early strength formation process of cement is of great importance for structural construction management and safety. In this study, we investigated the relationship between the eigenfrequency and the early strength development of cement ...
Guocheng Wang   +2 more
exaly   +3 more sources

Investigation on Eigenfrequency of a Cylindrical Shell Resonator under Resonator-Top Trimming Methods

open access: yesSensors, 2017
The eigenfrequency of a resonator plays a significant role in the operation of a cylindrical shell vibrating gyroscope, and trimming is aimed at eliminating the frequency split that is the difference of eigenfrequency between two work modes.
Kai Zeng, Youwang Hu, Guiling Deng
exaly   +3 more sources

Parity–Time Symmetric Model and Analysis for Stable Multi-Load Wireless Power Transfer

open access: yesWorld Electric Vehicle Journal, 2021
A noticeable challenge for a multi-load wireless power transfer system is to achieve stable power transfer under a dynamic change in coupling conditions.
Zhenghao Zhu   +5 more
doaj   +1 more source

Dynamic Assessment of the Structural Behavior of a Pedestrian Bridge Aiming to Characterize and Evaluate Its Comfort Level

open access: yesBuildings, 2023
The assessment of infrastructure integrity is considered paramount to verify its structural health and to build its resilience. In this study, a monitoring strategy, consisting of a pre-developed microcontroller-based data acquisition system (DAQ ...
Reina El Dahr   +3 more
doaj   +1 more source

Eigenfrequencies of an elliptic membrane [PDF]

open access: yesMathematics of Computation, 1973
The first few eigenfrequencies of a homogeneous elliptic membrane, which is fixed along its boundary, are given in a graph. It is explained in detail, how more accurate results can readily be obtained for special purposes. The known expansion of the eigenfrequencies for small and large eccentricities are summarized.
Troesch, B. A., Troesch, H. R.
openaire   +2 more sources

Maximization of the fundamental eigenfrequency using topology optimization based on multi-material level set method

open access: yesMechanical Engineering Journal, 2023
A multi-material structure that is composed of several different material properties is promising for achieving an ideal functionality that can outperform a single material structure. In the course of automotive design, the combination of lightweight and
Nari NAKAYAMA   +4 more
doaj   +1 more source

Eigenfrequency optimisation of free violin plates [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2021
We discuss how the modal response of violin plates changes as their shape varies. Starting with an accurate 3D scan of the top plate of a historic violin, we develop a parametric model that controls a smooth shaping of the interior of the plate, while guaranteeing that the boundary is the same as the original violin. This allows us to generate a family
Gonzalez, Sebastian   +3 more
openaire   +3 more sources

Analysis of Eigenfrequencies of a Circular Interface Delamination in Elastic Media Based on the Boundary Integral Equation Method

open access: yesMathematics, 2021
The widespread of composite structures demands efficient numerical methods for the simulation dynamic behaviour of elastic laminates with interface delaminations with interacting faces.
Mikhail V. Golub, Olga V. Doroshenko
doaj   +1 more source

Development and Validation of a LabVIEW Automated Software System for Displacement and Dynamic Modal Parameters Analysis Purposes

open access: yesModelling, 2023
The structural health monitoring (SHM) technique is a highly competent operative process dedicated to improving the resilience of an infrastructure by evaluating its system state. SHM is performed to identify any modification in the dynamic properties of
Reina El Dahr   +3 more
doaj   +1 more source

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