Finite Element Contact Analysis for Sprocket of an Armoured Face Conveyor

2011 ◽  
Vol 697-698 ◽  
pp. 740-744
Author(s):  
B.Y. He ◽  
Y.H. Sun ◽  
G.P. Li ◽  
S. Z. Chen
Keyword(s):  
Finite Element ◽  
True Strain ◽  
Element Model ◽  
Transmission System ◽  
Torsional Stiffness ◽  
Stiffness Coefficient ◽  
Test Results ◽  
Finite Element Software ◽  
Static Tensile ◽  
Simulation Results

Sprocket has an important role in improving the transport performance and life of the armoured face conveyor, which is the key component in the transmission system of armoured face conveyor (AFC). In this paper, true stress-true strain curves of materials of the sprocket and the ring chain are obtained by computing the data of static tensile test. A simplified symmetric finite element contact model is established based on the nonlinear finite element software ABAQUS. Stress field and torsional stiffness coefficient of the sprocket are calculated according to loads and boundary conditions. Simulation results are in good accordance with the test results. The finite element model and the simulation results provide useful guidance for design and test of the sprocket. Meanwhile, accurate torsional stiffness coefficient of the sprocket is obtained for simulation of the transmission system of AFC.

Numerical Simulation of the Kinetic Energy Projectile Oblique Penetration into the Concrete

2014 ◽  
Vol 989-994 ◽  
pp. 982-985
Author(s):  
Jun Chen ◽  
Xiao Jun Ye
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Kinetic Energy ◽  
Three Dimensional ◽  
Test Results ◽  
Destruction Process ◽  
3D Finite Element ◽  
Finite Element Software ◽  
Simulation Results ◽  
Target Characteristics

ANSYS-LS/DYNA 3D finite element software projectile penetrating concrete target three-dimensional numerical simulation , has been the target characteristics and destroy ballistic missile trajectory , velocity and acceleration and analyze penetration and the time between relationship , compared with the test results , the phenomenon is consistent with the simulation results. The results show that : the destruction process finite element software can better demonstrate concrete tests revealed the phenomenon can not be observed , estimated penetration depth and direction of the oblique penetration missile deflection .

scholarly journals Study on the Battery Safety in Frontal Collision of Electric Vehicle

2021 ◽  
Vol 2137 (1) ◽  
pp. 012008
Author(s):  
Weigao Qiao ◽  
Lei Yu ◽  
Zhanxi Zhang ◽  
Tongyu Pan
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Electric Vehicle ◽  
Rapid Development ◽  
Element Model ◽  
Maximum Deformation ◽  
Finite Element Software ◽  
Frontal Collision ◽  
Simulation Results ◽  
Test Requirements

Abstract With the rapid development of electric vehicle industry, more and more attention has been paid to the safety of the automotive battery. The safety of battery in electric vehicle’s frontal collision is the focus of this paper. In the process of simulated collision, the research object is simplified into a battery box. The mechanical properties of the battery monomers were investigated to summarize the mechanical properties of the internal failure of the monomers. Constructing the finite element model of the research object, we focus on the analysis of collision simulation results and propose the improvement measures. According to the test requirements in C-NCAP, the crash simulation of battery box is carried out by using the finite element software called LS-DYNA, which is used in automobile collision to analyze the deformation, stress of the battery box and the most dangerous battery monomer during the frontal collision. The simulation results show that the deformation of the case is obvious, and the protection of the battery is lost in the 50km/h frontal collision condition. By adding EVA foam, the maximum deformation of the battery monomer is reduced by 8.2%. By improving the material of battery case, the maximum deformation is reduced by 12.65%.

The Tensile Test Study of the Flange Repaired Reinforcement Laminates

2013 ◽  
Vol 694-697 ◽  
pp. 163-167
Author(s):  
Nan Zheng ◽  
Yi Wang ◽  
Xiao Xia Chen
Keyword(s):  
Finite Element ◽  
Tensile Test ◽  
Finite Element Model ◽  
Element Model ◽  
Test Results ◽  
Static Tensile Test ◽  
Test Study ◽  
Static Tensile ◽  
The Finite Element Model

The static tensile test and the Finite Element Model (FEM) study of the flange repaired cut-out laminates were carried out in this work. The tensile test is focus on the strength of the flange reinforcement panel and unreinforced panel. The FEM studies on the reinforcement and unrepaired structure is focused on simulation of the tensile test. The test results indicated that the strain value decreased as the size of load is. The FEM results indicated that the maximum Mises stress value of the flange repaired panel is decreased by 16.08% than the unreinforced.

scholarly journals Reliability analysis of gear transmission system of aeronautical turbine starter under multi-constraint

2020 ◽  
Vol 24 (3 Part A) ◽  
pp. 1513-1520
Author(s):  
Bing Zhang ◽  
Jian-Guo Gao ◽  
Gui-Long Min ◽  
Shoushuo Liu
Keyword(s):  
Finite Element ◽  
Reliability Analysis ◽  
Evaluation Method ◽  
Element Model ◽  
Transmission System ◽  
Gear Transmission ◽  
Analysis Method ◽  
Finite Element Software ◽  
Gear Transmission System ◽  
Low Efficiency

At present, there are some problems in the reliability analysis method for gear transmission system of aeronautical turbine starter, such as low accuracy of finite element model, low efficiency of analysis and low accuracy of analysis results. To this end, a reliability analysis method for the gear transmission system of aeronautical turbine starter under multi-constraint is presented. A 3-D model of the gear pair of aeronautical turbine starter is constructed in UG. The model is input into the finite element software for meshing. The gear transmission of aeronautical turbine starter under working conditions is simulated by defining boundary conditions and applying loads, which provides a basis for reliability analysis of gear transmission system of aeronautical turbine starter. The reliability of the gear transmission system of the aeronautical turbine starter is evaluated by the comprehensive evaluation method, and the reliability of the system is evaluated by the contact of the evaluation results. According to the evaluation results, the reliability analysis of the gear transmission system of the aeronautical turbine starter is realized under the condition of multi-constraint. The experimental results show that the proposed method has high analysis efficiency and high analysis accuracy.

Study on Dynamic Simulation of Buffering Mechanism with Liquid Bag

2013 ◽  
Vol 397-400 ◽  
pp. 546-550
Author(s):  
Ming Zhang ◽  
Rui Jiang ◽  
Chun Yang ◽  
Li Cao
Keyword(s):  
Finite Element ◽  
Dynamic Simulation ◽  
Outer Part ◽  
Element Model ◽  
Contact Method ◽  
Buffering Effect ◽  
Finite Element Software ◽  
Simulation Results ◽  
Contact Relation ◽  
The Finite Element Model

The finite element model of buffering mechanism with liquid bag is constructed using finite element software MSC. Patran. The liquid bag is clamped between the inner part and outer part, and the contact relation is modeled by contact method in the finite element software MSC. Dytran. An airbag module in MSC. Dytran is used to simulate the buffering effect of the liquid bag equivalently. Then dynamic simulation results is presented and compared with the experimental results. The validity of the model is verified and contributes to further analyses of liquid bag.

The Damage Evolution of the Flange Repaired Reinforcement Laminates

2013 ◽  
Vol 690-693 ◽  
pp. 3180-3184
Author(s):  
Yi Wang ◽  
Xiao Xia Chen ◽  
Zhi Qiang Jiang
Keyword(s):  
Finite Element ◽  
Tensile Strength ◽  
Damage Evolution ◽  
Element Model ◽  
Matrix Cracking ◽  
Test Results ◽  
Failure Model ◽  
Transverse Tension ◽  
Simulation Results ◽  
The Finite Element Model

The Finite Element Model (FEM) study of the flange repaired cut-out laminates were carried out in this work. The FEM studies on the reinforcement and unrepaired structure is focused on simulation of the tensile test, damage evolution and the predicted failure loading. The test results indicated that the strain value decreased as the size of load is. The simulation results show that the tensile strength of the reinforcement is larger than that is unrepaired. Compared the results of damage evolution with four kinds damage criterion, the major failure model is matrix cracking under transverse tension appeared in the layers.

Research on Crashworthiness of Car Bumper System

2013 ◽  
Vol 753-755 ◽  
pp. 1274-1278
Author(s):  
Xiu Chun Wu ◽  
Guo Hong Tian ◽  
Jie Liu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Simulation Method ◽  
Cad Model ◽  
Test Results ◽  
Crash Simulation ◽  
Simulation Results ◽  
The Finite Element Model ◽  
Bumper System

The computer simulation method is used to study the crashworthiness of car bumper system. Firstly, the CAD model of the car and bumper system is established in CATIA. The pre-processing for the model is finished in Hyper-Mesh and the finite element model is established. Then the process of crash simulation is calculated in Pam-Crash. The simulation results are compared with the test results to verify the accuracy of the finite element model. Finally, the low-speed crash simulation of the bumper system is conducted. The crash displacement and deformation of the bumper system are forecast through the process of simulation, which can provide a reference for the next design and improvement.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

scholarly journals Investigation of the Thickness Differential on the Formability of Aluminum Tailor Welded Blanks

Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 875
Author(s):  
Jie Wu ◽  
Yuri Hovanski ◽  
Michael Miles
Keyword(s):  
Experimental Data ◽  
Finite Element ◽  
Numerical Model ◽  
Plastic Strain ◽  
Finite Element Model ◽  
Equivalent Plastic Strain ◽  
Element Model ◽  
Dome Height ◽  
Tailor Welded Blanks ◽  
Simulation Results

A finite element model is proposed to investigate the effect of thickness differential on Limiting Dome Height (LDH) testing of aluminum tailor-welded blanks. The numerical model is validated via comparison of the equivalent plastic strain and displacement distribution between the simulation results and the experimental data. The normalized equivalent plastic strain and normalized LDH values are proposed as a means of quantifying the influence of thickness differential for a variety of different ratios. Increasing thickness differential was found to decrease the normalized equivalent plastic strain and normalized LDH values, this providing an evaluation of blank formability.

Sign in / Sign up

Export Citation Format

Share Document