Displacement Measurement of Derrick Model Base on the Non-Contact Type Video Measurement Technology

2013 ◽  
Vol 318 ◽  
pp. 125-129
Author(s):  
Xiao Bing Xu ◽  
Xing Han ◽  
Li Yu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Low Cost ◽  
Displacement Measurement ◽  
Measurement Technology ◽  
Element Analysis ◽  
Model Base ◽  
Contact Type ◽  
The Finite Element Analysis ◽  
Measurement Results

In this paper, a non-contact type video measurement technology is introduced, and the displacements of derrick model are measured by this technology. Then comparative analysis between this measurement results and the finite element analysis results showed that the precision of measurement displacement of derrick model used this technology is good. Therefore, this technology is an effective, convenient, safe, low cost, low labor and a new method of derrick displacement measurement.

Burst Capacity of Reinforced Thermoplastic Pipe (RTP) Under Internal Pressure

2011 ◽  
Author(s):  
Yong Bai ◽  
Fan Xu ◽  
Peng Cheng ◽  
Mohd Fauzi Badaruddin ◽  
Mohd Ashri
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Internal Pressure ◽  
Mathematical Analysis ◽  
Low Cost ◽  
Failure Process ◽  
Shell Element ◽  
Element Analysis ◽  
Burst Strength ◽  
The Finite Element Analysis

Being corrosion resistant, light weight, and easy to install at relatively low cost, Reinforced Thermoplastic Pipe (RTP) is now increasingly being used for offshore operations. RTP pipe in this study is mainly composed of three layers: a wound high strength fiber reinforced layer to improve the resistance of the pipe to internal pressure; a plastic inner layer to transport fluid; a plastic outer layer to protect the pipe. A precise calculation of the burst strength of RTP pipe will be useful for the safe use of RTP pipe’s internal pressure resistance. The Finite Element Analysis (FEA) method and mathematical analysis are employed to study the properties of pipe under internal pressure. The Finite Element Analysis method is used to simulating the pipe under increasing internal pressure using ABAQUS. The model is established with the conventional shell element, and the anisotropic property of plastic is also considered in the model. In the mathematical analysis, the reinforcement layer of the pipe is assumed to be anisotropic and other layers are assumed to be isotropic. Based on the three-dimensional (3D) anisotropic elasticity theory, an exact elastic solution for burst strength of the pipe under internal pressure has been studied. This paper focus on the calculation of RTP pipe’s burst strength, using mathematical approach and FEA approach, on the basis of elaborated study of RTP pipe’s failure process. Our results from mathematical and FE simulation agree each other for burst pressure of the RTP pipe. Our FEA models are also compared with the experimental research in order to validate our FEA models.

Using Magnetic Measurement Technology in Marine Riser Stress Detection

2010 ◽  
Author(s):  
Fanshun Meng ◽  
Rui Deng ◽  
Dawei Wang ◽  
Yanming Huang ◽  
Liyan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Measurement ◽  
Measurement Technology ◽  
Stress Detection ◽  
Marine Riser ◽  
Element Analysis ◽  
Element Simulation ◽  
The Finite Element Analysis ◽  
The Impact

The marine riser bears various power loads during operation. We designed the Quadrupole-type magnetic measurement probe based on the inverse magnetostrictive effect (the impact of stress on the magnetization) and performed finite element simulation and experimental analysis. The results of both the finite element analysis and magnetic measurement basically follow the same trend, so we conclude that this four-pole magnetic probe measurement can quantitatively evaluate the force state in a marine riser.

Finite Element Analysis Based Ultrasonic Elastography

2014 ◽  
Vol 887-888 ◽  
pp. 632-636
Author(s):  
Xian Xiang Wu ◽  
Yan Ming ◽  
Juan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sound Pressure ◽  
Analysis Method ◽  
Element Analysis ◽  
Displacement Distribution ◽  
Finite Element Analysis Method ◽  
Viscoelastic Parameters ◽  
The Finite Element Analysis ◽  
Measurement Results

A variety of ultrasound elasticity imaging methods have been widely used in clinical. However, most of the existing methods are based on the assumption of organization for the pure elastic, and ignore the organization viscoelasticity effects on measurement results. In this paper, the finite element analysis method was used to calculate the different tissue deformation displacement distribution as well as the distribution of acoustic echo, etc. Using the theory of viscoelastic mechanics, we study the effects of viscoelastic parameters and sound pressure frequencies for the viscoelastic imaging of model organization. The experimental results of finite element analysis show that the viscosity of the organization cant be ignored in elastography.

scholarly journals Finite Element Analysis of Three-ring Reducer

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Emma Srebnik
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Building Materials ◽  
Low Cost ◽  
Analysis Method ◽  
Element Analysis ◽  
Compact Structure ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis ◽  
Working Principle

The tricycle reducer is widely used in many fields such as mining, petroleum and building materials because of its characteristics of large transmission ratio, compact structure and wide application, as well as its excellent carrying capacity and low cost. In order to understand the force of three-ring reducer, the finite element analysis method should be adopted. This paper, starting with the structure and working principle, carries out the multi-tooth meshing effect and the whole machine statics analysis, aiming to provide a reference for the optimization and perfection of the products.

scholarly journals FE Model of Low Grade Rubber for Modeling Housing’s Low-Cost Rubber Base Isolators

2018 ◽  
Vol 4 (1) ◽  
pp. 24 ◽  
Author(s):  
Hidajat Sugihardjo ◽  
Tavio Tavio ◽  
Yudha Lesmana
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Curve Fitting ◽  
Low Cost ◽  
Low Grade ◽  
Actual Behavior ◽  
Element Analysis ◽  
Fitting Procedure ◽  
The Finite Element Analysis ◽  
Ogden Model

An accurate selection of strain energy function (SEF) plays a very important role for predicting the actual behavior of rubber material in the finite element analysis (FEA). The common method for selecting the SEF is by using the curve fitting procedure. However, the behavior of some typical rubbers, such as low grade rubbers (average hardness value of 47.2), cannot be predicted well by only using the curve fitting procedure. To accurately predict the actual behavior of such specifically nearly incompressible material, a series of FEA were carried out to simulate the actual behavior of four physical testing materials, namely the uniaxial, the planar shear, the equibiaxial, and the volumetric tests. This FEA is intended to examine the most suitable constitutive model in representing the rubber characteristics and behavior. From the comparisons, it can be concluded that the Ogden model provides a reasonably accurate prediction compared to the remaining investigated constitutive material models. Finally, the appropriate SEF, i.e. the Ogden model, was adopted for modeling a low-cost rubber base isolator (LCRBI) in the finite element analysis (FEA). The simple uniaxial compression test of the LCRBI is required for validating that the selected SEF works for predicting the actual behavior of LCRBI.

Interactive Graphics for the Analysis of Tires

1985 ◽  
Vol 13 (3) ◽  
pp. 127-146 ◽  
Author(s):  
R. Prabhakaran
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Approximate Solutions ◽  
Interactive Graphics ◽  
Element Analysis ◽  
Analysis Process ◽  
Physical Problems ◽  
The Finite Element Analysis ◽  
Analysis Computer ◽  
Discretization Technique

Abstract The finite element method, which is a numerical discretization technique for obtaining approximate solutions to complex physical problems, is accepted in many industries as the primary tool for structural analysis. Computer graphics is an essential ingredient of the finite element analysis process. The use of interactive graphics techniques for analysis of tires is discussed in this presentation. The features and capabilities of the program used for pre- and post-processing for finite element analysis at GenCorp are included.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Use of the Finite Element Analysis Method in Pedodontics

2018 ◽  
Vol 55 (4) ◽  
pp. 666-675
Author(s):  
Mihaela Tanase ◽  
Dan Florin Nitoi ◽  
Marina Melescanu Imre ◽  
Dorin Ionescu ◽  
Laura Raducu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Model ◽  
Analysis Method ◽  
Ansys Software ◽  
Concentrated Force ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis ◽  
Solid Type

The purpose of this study was to determinate , using the Finite Element Analysis Method, the mechanical stress in a solid body , temporary molar restored with the self-curing GC material. The originality of our study consisted in using an accurate structural model and applying a concentrated force and a uniformly distributed pressure. Molar structure was meshed in a Solid Type 45 and the output data were obtained using the ANSYS software. The practical predictions can be made about the behavior of different restorations materials.

A necessary modification for the finite element analysis of cracked members detection, construction, and justification

2013 ◽  
Vol 83 (7) ◽  
pp. 1087-1096 ◽  
Author(s):  
A. Ranjbaran ◽  
H. Rousta ◽  
M. O. Ranjbaran ◽  
M. A. Ranjbaran ◽  
M. Hashemi ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Cracked Members
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