Finite Element Modeling And Parametric Optimization of Solidly Mounted Film Bulk Acoustic Resonator For Its Performance Enhancement

2021 ◽  
Author(s):  
Arun Kishor Johar ◽  
Jai Kumar Bhatt ◽  
Gaurav Kumar Sharma ◽  
Tangudu Bharat Kumar ◽  
Tarun Varma ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Coupling Coefficient ◽  
Performance Enhancement ◽  
Fem Simulation ◽  
Acoustic Resonator ◽  
Design Parameters ◽  
Individual Layer ◽  
Element Modeling ◽  
Taguchi Design Of Experiments

Abstract This paper reports, the application of Taguchi Design of Experiments (DoE) and ANOVA (Analysis of Variance) for finding the optimal combinations and analysis of the effect of individual layer thickness on the performance of SMR sensor. The optimum combination of design parameters and its performance as a sensor have been predicted with DoE and validated through the finite element modeling (FEM) simulation. The optimization has been done to achieve enhancement in coupling coefficient of SMR sensor. The best optimized thickness of metal electrodes, piezoelectric, sensing, insulation low and high acoustic impedance layers have been found to be 0.2µm, 2µm, 0.68µm, 0.3µm, 1.028µm and 1.008µm, respectively. The results of the present study show that for the optimized dimension of SMR structure, simulated values of coupling coefficient (K2eff), Quality factor (Q) and figure of merit (FoM) are 0.075596 (or 7.5596%), 1171.6 and ≈ 88, respectively. Optimized structure performance has been compared with the existing SMR sensors and it is observed that proposed SMR exhibits performance enhancement in terms of FoM by ≈ 37 %.

Corrugated structures reinforced by shape memory alloy sheets: Analytical modeling and finite element modeling

2018 ◽  
Vol 233 (7) ◽  
pp. 2445-2454 ◽  
Author(s):  
Maryam Koudzari ◽  
Mohammad-Reza Zakerzadeh ◽  
Mostafa Baghani
Keyword(s):  
Finite Element ◽  
Shape Memory Alloy ◽  
Shape Memory Alloys ◽  
Finite Element Modeling ◽  
Shape Memory ◽  
Smart Structure ◽  
Design Parameters ◽  
Asymmetric Mode ◽  
Element Modeling ◽  
Structure Changes

In this study, an analytical solution is presented for a trapezoidal corrugated beam, which is reinforced by shape memory alloy sheets on both sides. Formulas are presented for shape memory alloys in states of compression and tension. According to the modified Brinson model, shape memory alloys have different thermomechanical behavior in compression and tension, and also these alloys would behave differently in different temperatures. The developed formulation is based on Euler–Bernoulli theory. Deflection of the smart structure and the effect of asymmetric response in shape memory alloys are studied. Results found from the semi-analytic modeling are compared to and validated through a finite element modeling, and there is more than [Formula: see text] agreement between two solutions. With regard to the results, the neutral axis of the smart structure changes in each section. The maximum deflection ratio of asymmetric mode to symmetric one mode is 1.7. Additionally, the effect of design parameters on deflection is studied in detail.

Finite Element Modeling for Tap Design Improvement in Form Tapping

2005 ◽  
Vol 128 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Curtis Warrington ◽  
Shiv Kapoor ◽  
Richard DeVor
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Modeling ◽  
Element Model ◽  
Design Parameters ◽  
Process Conditions ◽  
Design Improvement ◽  
Element Modeling ◽  
Form Tapping

The form tapping process typically yields unfinished threads known as split crests. Thread quality can be greatly improved by reducing the size and severity of split crest formation. This paper develops a finite element model to simulate form tapping with an eye towards the reduction of split crests. The model is validated against linear scratch experiments, and simulations are compared to actual tapping. The effects of various tap design parameters and tapping process conditions on the formation of split crests are investigated to strive toward an optimal tap design.

Parametric study of patient-specific femoral locking plates based on a combined musculoskeletal multibody dynamics and finite element modeling

2017 ◽  
Vol 232 (2) ◽  
pp. 114-126 ◽  
Author(s):  
Xunjian Fan ◽  
Zhenxian Chen ◽  
Zhongmin Jin ◽  
Qida Zhang ◽  
Xuan Zhang ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Fracture Healing ◽  
Multibody Dynamics ◽  
Locking Plate ◽  
Plate Thickness ◽  
Design Parameters ◽  
Patient Specific ◽  
Plate Interface ◽  
Element Modeling

A combined musculoskeletal multibody dynamics and finite element modeling was performed to investigate the effects of design parameters on the fracture-healing efficiency and the mechanical property of a patient-specific anatomically adjusted femoral locking plate. Specifically, the screw type, the thickness and material of the locking plate, the gap between two femoral fragments (fracture gap) and the distance between bone and plate (interface gap) were evaluated during a human walking. We found that the patient-specific locking plate possessed greater mechanical strength and more efficient fracture healing than the corresponding traditional plate. An optimal patient-specific femoral locking plate would consist of bicortical locking screws, Ti-6Al-4V material and 4.75-mm plate thickness with a fracture gap of 2 mm and an interface gap of 1 mm. The developed patient-specific femoral locking plate based on the patient-specific musculoskeletal mechanical environment was more beneficial to fracture rehabilitation and healing. The patient-specific design method provides an effective research platform for designing and optimizing the patient-specific femoral locking plate under realistic in vivo walking conditions, which can be extended to the design of other implants as well as to other physiological loading conditions related to various daily activities.

The Finite Element Modeling of the Free Vibration of a Read/Write Head Floppy Disk System

1985 ◽  
Vol 107 (3) ◽  
pp. 329-333 ◽  
Author(s):  
J. K. Good ◽  
R. L. Lowery
Keyword(s):  
Finite Element ◽  
Free Vibration ◽  
Finite Element Modeling ◽  
Floppy Disk ◽  
Disk Drive ◽  
Design Parameters ◽  
Signal Loss ◽  
Disk System ◽  
Element Modeling ◽  
Floppy Disk Drive

The configuration of read/write head designs in floppy disk drive units is of import as some designs witness vibration phenomena which lead to signal loss and excessive wearing of the disk media. This paper presents finite element modeling, and results thereof of a read/write head floppy disk system in free vibration. The objective of this work, of which this study marks but the beginning, is to determine the design parameters of read/write head support structure which will reduce the vibration phenomena.

Finite element modeling (FEM) simulation of interactions between wood and microwaves

2006 ◽  
Vol 52 (5) ◽  
pp. 406-410 ◽  
Author(s):  
Lars Hansson ◽  
Nils Lundgren ◽  
Anna-Lena Antti ◽  
Olle Hagman
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Fem Simulation ◽  
Element Modeling

Exact First Order Finite Element Modeling for Eddy Current NDE

1991 ◽  
Vol 3 (1) ◽  
pp. 235-253 ◽  
Author(s):  
L. D. Philipp ◽  
Q. H. Nguyen ◽  
D. D. Derkacht ◽  
D. J. Lynch ◽  
A. Mahmood
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Eddy Current ◽  
Element Modeling ◽  
First Order ◽  
Eddy Current Nde
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