scholarly journals The Affected Analysis of Pipeline Thermal Stress Under Different Support Conditions and Wall Thickness Based on Finite Element Simulation

2017 ◽  
Vol 5 (5) ◽  
pp. 362
Author(s):  
Sun Ying
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Finite Element Simulation ◽  
Wall Thickness ◽  
Element Simulation ◽  
Support Conditions

3-D Finite Element Simulation of Pulsating T-Shape Hydroforming of Tubes

2007 ◽  
Vol 340-341 ◽  
pp. 353-358 ◽  
Author(s):  
M. Loh-Mousavi ◽  
Kenichiro Mori ◽  
K. Hayashi ◽  
Seijiro Maki ◽  
M. Bakhshi
Keyword(s):  
Finite Element ◽  
Internal Pressure ◽  
Finite Element Simulation ◽  
Wall Thickness ◽  
Filling Ratio ◽  
Shape Accuracy ◽  
Element Simulation ◽  
Hydroforming Process ◽  
Good Agreement

The effect of oscillation of internal pressure on the formability and shape accuracy of the products in a pulsating hydroforming process of T-shaped parts was examined by finite element simulation. The local thinning was prevented by oscillating the internal pressure. The filling ratio of the die cavity and the symmetrical degree of the filling was increased by the oscillation of pressure. The calculated deforming shape and the wall thickness are in good agreement with the experimental ones. It was found that pulsating hydroforming is useful in improving the formability and shape accuracy in the T-shape hydroforming operation.

Thermal Stress Analysis of Photovoltaic Hollow Glass Based on ANSYS

2013 ◽  
Vol 544 ◽  
pp. 339-342 ◽  
Author(s):  
Wei Hong Li ◽  
Cong Li ◽  
Yan Qiu
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Thermal Stress ◽  
Structural Analysis ◽  
Finite Element Simulation ◽  
Glass Plate ◽  
Finite Element Software ◽  
Element Simulation ◽  
Temperature Load ◽  
Method Analysis

This article through to hollow photovoltaic glass service in the process of temperature test, by using the finite element simulation of the temperature change caused by the thermal stress, using the finite element simulation of the temperature change caused by the thermal stress. According to the heat conduction equation and boundary condition, derivation hollow photovoltaic through the finite element software to hollow photovoltaic glass plate thermal stress for numerical simulation and research. Adopted in structural analysis directly define temperature load method analysis force hollow photovoltaic glass thermal stress. Use the finite element software to hollow photovoltaic glass plate thermal stress for numerical simulation and research. For the known temperature field distribution situation, adopted in structural analysis directly define temperature load method analysis force hollow photovoltaic glass thermal stress. Through the finite element software ANSYS to calculate different unit was carried out and the numerical simulation, the results show that the analytical solution and the numerical solution has good goodness of fit. The proposed calculation formula for engineering design has the certain reference value.

Stamping of One-Piece Automobile Steel Wheels from Tube

2007 ◽  
Vol 344 ◽  
pp. 427-433 ◽  
Author(s):  
Y. Abe ◽  
J. Watanabe ◽  
Kenichiro Mori
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Wall Thickness ◽  
Side Wall ◽  
Central Hole ◽  
Stamping Process ◽  
Multi Stage ◽  
Element Simulation ◽  
Automobile Steel ◽  
The One

A multi-stage stamping process of one-piece automobile steel wheels from tubes was developed to decrease the loss of material for the blanking. In this process, the tube is nosed into a cup with a central hole, and then the taper bottom and side wall of the cup are formed into disk and rim portions of the wheel, respectively. The tube is produced by bending a rectangular sheet into a tube and by welding both edges of the bent sheet to prevent the loss of material for the blanking. The stamping sequence of the one-piece wheels was designed by finite element simulation. The central hole of the cup was decreased to a desired diameter of the hub hole without buckling and wrinkling by a 5-stages nosing operation. The taper bottom of the cup was reversely drawn, and then was flared without folding by 2 stages. The wall thickness of the formed wheel was thick and thin in the disk and rim portions, receptively, and thus the requirement of strength of wheels is satisfied. A one-piece wheel having a hub hole was successfully formed by the designed sequence in a miniature experiment.

Theoretical Analysis and Experimental Study on the Vibration of the Bimorph Piezoelectric Vibrator for Piezoelectric Pump

2014 ◽  
Vol 551 ◽  
pp. 164-169 ◽  
Author(s):  
Wei Zheng ◽  
Bai Song Lin ◽  
Jing Shi Dong ◽  
Jing Yuan Shi ◽  
Bo Da Wu
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Vibration Mode ◽  
Test Results ◽  
Piezoelectric Pump ◽  
Bending Vibration ◽  
Piezoelectric Vibrator ◽  
Element Simulation ◽  
Support Conditions ◽  
The Relationship

This paper studied the characteristics of the bimorph piezoelectric vibrator for piezoelectric pump. By simulating the working conditions of the vibration in the pump, we constructed a dynamic model and derived the bending vibration equations of the piezoelectric vibrator under different support conditions. Then the analysis of finite element simulation is carried out for the equations, through which the vibration mode of the multi-order modal of the piezoelectric vibrator was acquired, and the relationship between the deformation deflection and peripheral support stiffness of the piezoelectric vibrator was analyzed. Finally, the deformation of the piezoelectric vibrator was tested. It is found that the test results are consistent with the conclusions of the finite element simulation, which provides a theoretical basis for the optimal design of the bimorph piezoelectric vibrator.

Finite Element Simulation and Numerical Analysis in the Process of Tube Bending

2011 ◽  
Vol 421 ◽  
pp. 14-18 ◽  
Author(s):  
Xiao Bing Xu ◽  
Tian Kai Xiong ◽  
Qiang Guan ◽  
Li Jun Tan
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Wall Thickness ◽  
Contact Boundary ◽  
Fe Model ◽  
Tube Bending ◽  
Element Simulation ◽  
Key Techniques ◽  
Variation Trends ◽  
Inside Wall

In this paper, a 3D-FE model in process of tube bending is built under the ABAQUS/Explicit environment based on the solution of several key techniques, such as contact boundary condition, material properties definition and meshing technology, etc. The results show that both friction coefficients and bending angles have an important influence on the wall thickness of tubes. The variation trends of outside and inside wall thickness are found out by using finite element simulation. The achievements of this study may provide some advice for experiments and manufactures.

The Finite Element Simulation and Analysis of Thermal Stress Field of In-Service Tubular Electro-Thermal Component

2010 ◽  
Vol 171-172 ◽  
pp. 354-357
Author(s):  
Xiu Mei Zhang ◽  
Rui Ying Zhang ◽  
Quan Li
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Stress Field ◽  
Finite Element Simulation ◽  
Quartz Glass ◽  
Borosilicate Glass ◽  
Thermal Component ◽  
Element Simulation ◽  
Thermal Stress Field ◽  
Inner Surface

The tubular electro-thermal component will produce thermal stress when water in the tube is heated by electricity, which is one of important factors to cause the fracture. In this paper, the finite element simulation and theoretical analyzing methods are used to analyze the thermal stress field of the electro-thermal component tube with different substrates, i.e., quartz glass and borosilicate glass. The result shows that under the same condition, the highest temperature of electro-thermal component using borosilicate glass substrate is higher than that using quartz substrate. When in service, the inner surface of electro-thermal component endures tensile stress and the outer surface endures compressive stress. The inner surface produces greater thermal stress and therefore fracture is more likely to emerge on the inner surface. Therefore, in order to prevent forming of the fracture and reduce the thermal stress, compared with borosilicate glass, priority should be given to quartz glass as the material for manufacturing electro-thermal component.

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