Finite-Element Analysis of the Frequency Response of a Metallic Cantilever Coupled With a Piezoelectric Transducer

2005 ◽  
Vol 54 (5) ◽  
pp. 1881-1890 ◽  
Author(s):  
L. Dalessandro ◽  
D. Rosato
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Frequency Response ◽  
Piezoelectric Transducer ◽  
Element Analysis

Simulations and Experiment Analysis of a Piezoelectric Micropump

2012 ◽  
Vol 229-231 ◽  
pp. 1688-1692 ◽  
Author(s):  
Yan Fang Guan ◽  
Ming Gang Shen ◽  
Li Li Han
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Flow Rate ◽  
Piezoelectric Transducer ◽  
Working Condition ◽  
Coupling Analysis ◽  
Element Analysis ◽  
Deep Reactive Ion Etching ◽  
First Order ◽  
Experiment Analysis

The application of micropump in microanalytical reagent is widely. In this paper a piezoelectric micropump model that looks like a sandwitch has been put forward. The main structures of the micropump include inlet and outlet pipe, silicon substrate pump body, piezoelectric transducer. In order to find the excellent driving performance, the modals and piezoelectric-stress coupling analysis of the piezoelectric transducer has been carried out with finite element analysis methods. The result proves that the optimal working condition of the micropump is the 1st mode. Finally the micropump model has been fabricated with silicon deep reactive ion etching and UV irreversible irradiation. Through experiment the flow rate and pressure of the micropump reach the maximum in first-order modal that is less than 1000 Hz, and this is accord with the modal analysis.

The Efficient Multi-Objective Optimization of Finite Element Analysis Model Using ModelCenter

2016 ◽  
Author(s):  
Lyu Wang ◽  
Yuan Yun ◽  
Bin Zhang ◽  
Tao Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Frequency Response ◽  
Space Environment ◽  
Multi Objective Optimization ◽  
Analysis Model ◽  
Element Analysis ◽  
Finite Element Analysis Model ◽  
Multi Objective ◽  
Software Analysis

The multi-objective optimization for a nested flying vehicle (NFV) of space science experiments is carried out aiming at the launch weight, frequency response and vacuum effect. The parametric model and finite element analysis are adopted to implement the structural analysis. The NFV is optimized to enhance the performance in the space environment where the lunch weight and structural strength are key constraints to concern about. The CAX software, analysis models and algorithms are integrated based on ModelCenter framework which makes modeling, analyzing and optimization more convenient and efficient. The optimizer of ModelCenter is chosen to optimize the structural performance of NFV, including the total mass, maximum deformation caused by vacuum environment and frequency response. As to validate the results, both weighting method with gradient optimization algorithm and Genetic Algorithm (GA) for multi-objective optimization are used. The optimization results of NFV verify the approaches proposed in this paper can improve the performance of NFV and apply to the finite element analysis model.

Improvement of the Dynamic Behavior of a Fan Using Finite Element Method

2005 ◽  
Author(s):  
Ioan Parausanu ◽  
Stefan Sorohan ◽  
Horia Gheorghiu ◽  
Anton Hadar ◽  
Dumitru I. Caruntu
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Diesel Engine ◽  
Dynamic Analysis ◽  
Frequency Response ◽  
Response Spectrum ◽  
Design Solution ◽  
Element Analysis ◽  
Main Components

The first part of this article presents a dynamic analysis of the fan of a generator connected by rigid coupling to a diesel engine. The purpose of this analysis is to correlate the main components of the fan’s frequency response spectrum with the ones of the excitation source, i.e., the diesel engine. The second part describes a finite element analysis of the fan in order to find the best design solution.

FEA Modeling of Piezoelectric Clamped-Clamped Beam Microresonators

2002 ◽  
Author(s):  
Luke J. Currano ◽  
Brett Piekarski ◽  
Donald L. DeVoe
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Film Thickness ◽  
Frequency Response ◽  
Design Matrix ◽  
Laser Doppler Vibrometry ◽  
Element Analysis ◽  
At Resonance ◽  
Fea Modeling ◽  
Varying Length

Finite element modeling of MEMS piezoelectric clamped-clamped beam resonators is investigated using a design matrix consisting of beams of varying length and film thickness. Laser Doppler vibrometry was performed on fabricated devices to obtain frequency response, modeshapes, and deflection magnitudes at resonance. The mechanical testing showed an unexpected nonlinearity at resonance in both the frequency response and the modeshapes. Finite element analysis of the beams is presented and the results compared to test data. The model is shown to predict natural frequency well, but the nonlinear modeshapes prevent the accurate prediction of displacement magnitude and modeshape. Evidence is offered from both testing and a finite element buckling model suggesting that the nonlinearity is due to piezoelectrically-induced buckling in the beams.

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