Analysis of PZT Piezoelectric Ceramics Based on Finite Element Softeware ADINA

2011 ◽  
Vol 284-286 ◽  
pp. 1456-1459 ◽  
Author(s):  
Chang Song Zhang ◽  
Chen Jie Guo
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Piezoelectric Ceramic ◽  
Geometric Model ◽  
Piezoelectric Ceramics ◽  
Element Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Piezoelectric Structure ◽  
The Finite Element Model

Using traditional experiment means on piezoelectric ceramic device has certain limitations due to the complicated boundary conditions and stress situation. In this paper, the finite element model of piezoelectric ceramics in line with the experiment results was established according to piezoelectric structure field and the coupling of the electric field, deformation of representative PZT piezoelectric ceramics under the voltage was analysed in using finite element analysis software ADINA according to establishing geometric model, defining boundary conditions and materials, Coupling calculation. Consistency between simulation results and experimental results is improved and lay the foundation for the realization of the piezoelectric ceramic shapes and vibration control.

Research on Properties of PZT Piezoelectric Ceramics by Finite Element Softeware ADINA

2011 ◽  
Vol 130-134 ◽  
pp. 3233-3236
Author(s):  
Chen Jie Guo ◽  
Chang Song Zhang
Keyword(s):  
Finite Element ◽  
Geometric Model ◽  
Piezoelectric Ceramics ◽  
Element Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Piezoelectric Structure ◽  
Coupling Calculation ◽  
Simulation Results ◽  
The Finite Element Model

In this paper, the finite element model of piezoelectric ceramics in line with the experiment results was established according to piezoelectric structure field and the coupling of the electric field, deformation of representative PZT piezoelectric ceramics under the voltage was analysed in using finite element analysis software ADINA according to establishing geometric model, defining boundary conditions and materials, Coupling calculation. Consistency between simulation results and experimental results is improved and lay the foundation for the realization of the piezoelectric ceramic shapes and vibration control.

CT Based Three Dimensional Geometric Model of Cervical Spine

2013 ◽  
Vol 273 ◽  
pp. 588-592
Author(s):  
Zhi Yuan Yan ◽  
Dong Mei Wu ◽  
Li Tao Zhang ◽  
Jun Zhao
Keyword(s):  
Finite Element ◽  
Cervical Spine ◽  
Geometric Model ◽  
Three Dimensional ◽  
Element Model ◽  
Skeletal System ◽  
High Quality ◽  
Element Analysis ◽  
Dimensional Reconstruction ◽  
The Finite Element Model

In order to obtain high-quality analytical results of the finite element model, it is essential to construct a three dimensional geometric model. The paper reconstructed an accurate three dimensional geometric model of cervical spine segments (C4-C7). The process of reconstruction included three-dimensional reconstruction, smooth processing, contour generation, grid generation and fitting surface. Moreover, the result of reconstruction was evaluated ultimately. The model was validated to be smooth and reasonable, and could meet the requirements of finite element analysis. The method is not merely applied to reconstruct the geometric model of the cervical spine. It is a way to construct the model of the skeletal system of the human body.

Finite Element Analysis of the Greenhouse Canopy Effect with Seismic Load

2011 ◽  
Vol 368-373 ◽  
pp. 1125-1129
Author(s):  
Chang Jiang Liu ◽  
Jin Long Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Analysis ◽  
Element Model ◽  
Seismic Load ◽  
Analysis Software ◽  
Element Analysis ◽  
Canopy Effect ◽  
The Finite Element Analysis ◽  
The Finite Element Model

The finite element model about greenhouse canopy of seismic analysis was setted up, The finite element analysis software ANSYS was used to study structure displacement, stress analysis on greenhouse shed. The results showed that the dangerous part of the canopy were located on upper chord members,lower chord members, web members of the framework and the lower and upper, the inside of both sides of the wall with seismic load.Corresponding to this results ,the main destroied form were the framework damage caused by the bending deformation of upper chord members, lower chord members and the upper web members and the unstability caused by the distortion of both sides of the wall.

Research on Applied Technology in the Optimization of the Naval Gun Bracket with Mechanical Properties

2014 ◽  
Vol 1014 ◽  
pp. 199-202
Author(s):  
Shuai Chen
Keyword(s):  
Finite Element ◽  
Necessary Conditions ◽  
Element Model ◽  
Three Dimension ◽  
Analysis Software ◽  
Element Analysis ◽  
Applied Technology ◽  
Naval Gun ◽  
Dynamics Response ◽  
The Finite Element Model

In the paper, the three-dimension model of the naval gun including barrel, cradle, bracket .etc has been built in the environment of Pro/E, which Provides the necessary conditions for the building of the dynamics equivalent mode. Then, finite element analysis software ABAQUS had been used to create the finite element model of the naval gun. Apply the above model to simulate the process of shooting with an angular altitude of zero. The characteristics of structural dynamics response of the gun are obtained through analysis. Through the comparison from the result, the stiffness and strength of the naval gun is verified and the basis to improve the firing accuracy is provided. With the method of this thesis, much work such as verifying scheme, finding design bug, verifying firing accuracy, evaluating stiffness and strength of the gun can be done through simulation in the stage of gun design, then period of design is shorted and cost of design is also reduced.

Vibration Characteristic Analysis of the Barrel

2014 ◽  
Vol 1014 ◽  
pp. 143-146
Author(s):  
Shuai Chen ◽  
Cun Gui Yu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Model ◽  
Vibration Characteristic ◽  
Analysis Software ◽  
Characteristic Analysis ◽  
Modal Shape ◽  
Element Analysis ◽  
Vibration Modal ◽  
The Finite Element Model

This study is based on the graduation design for undergraduate course. In the paper, finite element analysis software ANSYS had been used to create the finite element model of a cannon barrel. On this basis, the vibration modal analysis of the barrel was conducted. Through the model analysis, the natural frequency and modal shape of the cannon barrel was obtained. The situations of stiffness strength and elasticity deformation about each part of the barrel were got by analysis of the modal shape. By this way, we can verify the rationality of the barrel design .Also it can provide improvements of the weak place of the structure for people to improve the stiffness and shooting precision of the gun, in order to make the dynamics characteristics of the gun more reasonable.

Modal Analysis and Experimental Analysis of Dynamic Characteristics of Linear Rolling Guide

2012 ◽  
Vol 482-484 ◽  
pp. 2360-2364
Author(s):  
Xiao Peng Li ◽  
Hao Guo ◽  
Jing Nian Liu ◽  
Ya Li Liu
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Finite Element Model ◽  
Experimental Analysis ◽  
Dynamic Performance ◽  
Element Model ◽  
Cnc Machine ◽  
Element Analysis ◽  
Rolling Guide ◽  
The Finite Element Model

The finite element model of the liner rolling guide of the CNC machine tool is established. Then the natural frequencies and the corresponding vibration modes of the liner rolling guide (LRG) are obtained by analyzing the finite element model (FEM) of the linear rolling guide in two different boundary conditions. By comparing the modal characters of the two states it is proved that the movable joint and bolted interfaces of the rail have certain effects on the dynamic performance of linear rolling guide. Besides, the liner rolling guide also have been tested dynamically, obtaining the modal parameters of the rail guide; finally, the validity of finite element model and the effect of boundary conditions on the interface of the linear rolling guide are verified by comparing the finite element analysis of frequency and experimental analysis of frequency

Redrawing Operation a Star Shape from Cylindrical Shape Using Experimental and FE Analysis

2020 ◽  
Vol 38 (1A) ◽  
pp. 25-32
Author(s):  
Waleed Kh. Jawad ◽  
Ali T. Ikal
Keyword(s):  
Finite Element ◽  
Effective Strain ◽  
Element Model ◽  
Cylindrical Shape ◽  
Element Analysis ◽  
Punch Force ◽  
Maximum Value ◽  
Element Simulation ◽  
Blank Sheet ◽  
The Finite Element Model

The aim of this paper is to design and fabricate a star die and a cylindrical die to produce a star shape by redrawing the cylindrical shape and comparing it to the conventional method of producing a star cup drawn from the circular blank sheet using experimental (EXP) and finite element simulation (FES). The redrawing and drawing process was done to produce a star cup with the dimension of (41.5 × 34.69mm), and (30 mm). The finite element model is performed via mechanical APDL ANSYS18.0 to modulate the redrawing and drawing operation. The results of finite element analysis were compared with the experimental results and it is found that the maximum punch force (39.12KN) recorded with the production of a star shape drawn from the circular blank sheet when comparing the punch force (32.33 KN) recorded when redrawing the cylindrical shape into a star shape. This is due to the exposure of the cup produced drawn from the blank to the highest tensile stress. The highest value of the effective stress (709MPa) and effective strain (0.751) recorded with the star shape drawn from a circular blank sheet. The maximum value of lamination (8.707%) is recorded at the cup curling (the concave area) with the first method compared to the maximum value of lamination (5.822%) recorded at the cup curling (the concave area) with the second method because of this exposure to the highest concentration of stresses. The best distribution of thickness, strains, and stresses when producing a star shape by

Analysis of Hydroelectric Unit’s Upper Bracket Based on Test and FEM

2014 ◽  
Vol 721 ◽  
pp. 131-134
Author(s):  
Mi Mi Xia ◽  
Yong Gang Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Element Model ◽  
The Finite Element Method ◽  
Ansys Software ◽  
Element Analysis ◽  
Hydroelectric Unit ◽  
The Finite Element Analysis ◽  
Strain Rosette ◽  
The Finite Element Model

To research the load upper bracket of Francis hydroelectric unit, then established the finite-element model, and analyzed the structure stress of 7 operating condition points with the ANSYS software. By the strain rosette test, acquired the data of stress-strain in the area of stress concentration of the upper bracket. The inaccuracy was considered below 5% by analyzing the contradistinction between the finite-element analysis and the test, and match the engineering precision and the test was reliable. The finite-element method could be used to judge the stress of the upper bracket, and it could provide reference for the Structural optimization and improvement too.

scholarly journals COMPARISON OF SAW BLADE NATURAL FREQUENCIES AND CRITICAL SPEEDS USING CSAW AND FINITE ELEMENT ANALYSIS

2011 ◽  
Author(s):  
J. Poirier ◽  
P. Radziszewski
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Natural Frequencies ◽  
Element Model ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Saw Blade ◽  
Circular Saws ◽  
The Finite Element Model ◽  
Element Method

The natural frequencies of circular saws limit the operating speeds of the saws. Current industry methods of increasing natural frequency include pretensioning, where plastic deformation is induced into the saw. To better model the saw, the finite element model is compared to current software for steel saws; C-SAW, a software program that calculates frequencies for stiffened circular saws. Using C-SAW and the finite element method the results are compared and the finite element method is validated for steel saws.

scholarly journals Finite element analysis of soft foundation treatment by thermal drainage consolidation of group well

2020 ◽  
Vol 198 ◽  
pp. 03025
Author(s):  
Kang Le ◽  
Zhang tingjun ◽  
Tong Junhui ◽  
Chen Di ◽  
Qian Baoyuan
Keyword(s):  
Finite Element ◽  
Model Test ◽  
New Technology ◽  
Element Model ◽  
Element Analysis ◽  
Mechanical Field ◽  
Foundation Treatment ◽  
Soft Foundation ◽  
Consolidation Effect ◽  
The Finite Element Model

Thermal drainage consolidation method is a new technology of soft foundation treatment, which involves the coupling of thermo-hydro-mechanical field, and the action mechanism is complex. In this paper, taking the model test of thermal drainage consolidation as the prototype, the finite element model of thermal drainage consolidation is established by using Abaqus software, then, the numerical results are obtained and are compared with the results of model test, and the reliability of the numerical model is verified. The results show that when the applied load is constant, the higher the temperature is, the faster the consolidation speed of soil is, but with the increase of temperature, the consolidation effect of the same temperature difference will gradually weaken. In addition, the thermal drainage consolidation method can achieve the best treatment effect when the temperature of the soil reaches 60 ℃.

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