scholarly journals Design and Experimental Research on Sealing Structure for a Retrievable Packer

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yang Liu ◽  
Zhanghua Lian ◽  
Junwen Chen ◽  
Shengping Kuang ◽  
Yisheng Mou ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Theoretical Calculation ◽  
Large Deformation ◽  
Experimental Research ◽  
Element Analysis ◽  
Sealing Performance ◽  
The Finite Element Analysis

In order to reduce the failure accidents of conventional packers, a kind of sealing structure of retrievable packers is designed, which can provide reference for optimizing the sealing performance and pressure capacity of packers. And theoretical calculation and experimental research on their sealing performance and pressure capacity are carried out through the finite element analysis on the contact with large deformation based on Abaqus and experimental study. The results show that the upper packer is subjected to greater stress and mainly plays a sealing role in the sealing process. In order to improve the sealing performance of the packer, the height of the upper and lower packer should be preferentially selected about 60 mm, the height of the middle rubber cylinders should be about 50 mm, and the thickness of the packer should be about 21 mm. The newly designed rubber cylinders can meet 150°C. The newly designed rubber cylinders can meet the sealing function and pressure bearing function under the condition of 10,000 Psi and 150°C. The newly designed rubber cylinder can satisfy the function of sealing and pressure-bearing under 140°C and 10,000 Psi. The whole experiment shows that the capacity of bearing pressure and sealing is stable, which can better meet the requirements of field use.

Mathematical Modeling and Experimental Study on Electrochemical Deburring of Miniature Holes

2013 ◽  
Vol 721 ◽  
pp. 382-386 ◽  
Author(s):  
Ze Fei Wei ◽  
Xing Hua Zheng ◽  
Zi Yuan Yu
Keyword(s):  
Mathematical Modeling ◽  
Experimental Data ◽  
Mathematical Model ◽  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Electrochemical Machining ◽  
Current Density Distribution ◽  
Element Analysis ◽  
The Finite Element Analysis

The paper mainly focused on burr removal of the miniature hole drilled on aluminum plate by electrochemical machining. A mathematical model for the electrochemical deburring of miniature holes (M-ECD) was established based on the finite element analysis to the current density distribution. Both theoretical analysis and experimental study were held on the effects of many factors to the deburring results. The results proved that predictions based on our mathematical model were agreed with the experimental data comparatively.

Buckling Analysis of the Hydraulic Support Column Based on ANSYS

2012 ◽  
Vol 500 ◽  
pp. 434-439
Author(s):  
Y.K. Zhang ◽  
L.J. Xiao ◽  
Rui Chuan Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Result ◽  
Theoretical Calculation ◽  
Buckling Analysis ◽  
Hydraulic Support ◽  
Element Analysis ◽  
Critical Buckling Load ◽  
Analogue Simulation ◽  
The Finite Element Analysis

The buckling of hydraulic support column is analyzed theoretically with the theory of the pressure rod stability. 3D digital model of the hydraulic support column is built with Pro/E, also buckling analysis and analogue simulation with ANSYS to the model are carried out. The critical buckling load of the column is obtained. The buckling analysis result is picked up and discussed, and compared with the theoretical calculation. The finite element analysis result is agreed with the theoretical result.

Analysis of Reciprocating Seals in the Wet-Mate Electrical Connectors for Underwater Applications

2018 ◽  
Author(s):  
Quan Han ◽  
Yan Zhang ◽  
Haiyang Chen ◽  
Juekuan Yang ◽  
Yunfei Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Water Pressure ◽  
Water Environment ◽  
Fluid Viscosity ◽  
Element Analysis ◽  
Operation Speed ◽  
Sealing Performance ◽  
The Finite Element Analysis ◽  
Electrical Connectors

In order to complete the mating and demating operations of the electrical connectors for underwater applications in the deep water environment, the pressure-balanced oil-filled (PBOF) structures are designed to compensate the huge water pressure. This paper focuses on the sealing performance of three sealing systems used in connectors, including the O-ring seals, rectangular seals, and U-cup seals. A method coupled the finite element analysis and elastohy-drodynamic lubrication (EHL) numerical model is presented to describe the issue. Results show that the rectangular seals perform best in fluid leakage, and O-ring seals are better in reducing the friction force. The oil leakages of the seals increase with the speed while the seawater leakages remain roughly constant. And the oil leakages of all the seals are larger than the seawater leakage. Types of seal rings, fluid viscosity and operation speed of connector can all influence the sealing performance of wet-mate connectors.

Experimental Research on the Temperature Field of High and Hollow-Thin Pier

2012 ◽  
Vol 256-259 ◽  
pp. 714-718
Author(s):  
Jian Cheng Sun ◽  
Zhong Le Zhang ◽  
Qing Yi Xiao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Tensile Stress ◽  
Experimental Research ◽  
Temperature Difference ◽  
Hydration Heat ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
And Control

To study the temperature field changing regulation of hydration heat and control concrete cracks caused by great temperature difference in the construction of hollow-thin pier, testing the temperature field of the high and hollow-thin pier of Cha Jiugou Bridge and it got changing regulation of the temperature. The finite element analysis on the pier was also carried out and the temperature stress contours and curves of the hydration heat of the concrete are obtained. It can be seen that the outer surface and the center of the pier are compressive within 10 hours in the pouring early. With the temperature difference, the center generates the compressive stress, the surface generates tensile stress.

Pressure Capacity Study of Φ100 Reinforced Thermoplastic Pipe

2019 ◽  
Vol 944 ◽  
pp. 867-872
Author(s):  
Lin Wang ◽  
Yu Ran Fan ◽  
Peng Song
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Small Deviation ◽  
Experimental Result ◽  
Burst Pressure ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Simulation Results ◽  
Structural Layer

The pressure capacity of reinforced thermoplastic pipe was studied by the finite element analysis and experimental study using Φ100 reinforced thermoplastic pipes. The simulation results illustrated that the failure mode of reinforced thermoplastic pipe under internal pressure was the break of glass fiber belt in structural layer. Moreover, the simulated burst pressure fitted well with the experimental result, the small deviation between two results may be resulted from the process defects of RTP.

The Finite Element Analysis and Experimental Study of Fly Ash Embankment Reinforcement

2012 ◽  
Vol 188 ◽  
pp. 193-198
Author(s):  
Hu Mei Wang ◽  
Yang Wang ◽  
Lin Huang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Fly Ash ◽  
Model Experiment ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Positive Effect

This paper presents the effect of two-directional reinforced with geogrid on the performance of embankment, and carries out model experiment and numerical simulation on fly ash embankment. Finally, the curve of relationship among the embankment deformation, the amount of reinforcement and reinforced position was obtained. In addition, the optimum geogrids-reinforced project was also disscussed. The disscussion has some positive effect on the design of reinforced embankment of fly ash.

scholarly journals Experimental Research on Zirconia Resistance to Occlusal Stresses

2019 ◽  
Vol 70 (1) ◽  
pp. 74-77
Author(s):  
Raluca Monica Comaneanu ◽  
Loredana Elena Bordea ◽  
Viviyana Paraschiv ◽  
Oana Botoaca ◽  
Farah Bechir ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Strength ◽  
Experimental Research ◽  
Compressive Force ◽  
Element Analysis ◽  
High Mechanical Strength ◽  
The Finite Element Analysis ◽  
Design Deficiencies

FEM studies were made on a zirconia dental bridge of 4 elements with supports on 2.4 and 2.7, and edentation on 2.5 and 2.6. Appling a compressive force of 350N on Z direction, quite normal for mastication, was analyzed the behavior of the dental bridge. Zirconia, although having a high mechanical strength, is fragile when rotation or bending movements occur. The analysis reveals some bridge deficiencies, which may be due either to inaccuracies in the prosthetic abutment construction (especially in relation to their inclination), to the technique of realization or to insufficient dental support. In our study, the most vulnerable elements are the crowns on teeth 2.4 and 2.7. Finite element analysis, highlighting possible structural and design deficiencies, may be a solution to improve dental bridges. The only disadvantage of the finite element analysis that was performed before the actual restoration is related to the fact that performing the simulations involves a time-consuming phase.

Sign in / Sign up

Export Citation Format

Share Document