Mechanical Strength Analysis and Structure Improvement of Diaphragm Chamber Based on Finite Element Method

2013 ◽  
Vol 690-693 ◽  
pp. 1945-1949
Author(s):  
Xue Qin Ling ◽  
Peng Fu ◽  
Wei Zhang ◽  
Yang Chen
Keyword(s):  
Finite Element ◽  
Mechanical Strength ◽  
Production Costs ◽  
Strength Analysis ◽  
Manufacturing Cost ◽  
Long Distance ◽  
Element Analysis ◽  
Factors Affecting ◽  
Structure Improvement ◽  
Major Factors

Diaphragm chamber is the key component in fluid end of high pressure diaphragm pump for long distance pipeline transportation. Structural dimensions are the major factors affecting mechanical strength and manufacturing cost of diaphragm chamber. In this paper, diaphragm chamber was simulated by finite element analysis software ANSYS. Mechanical strength of diaphragm chamber was checked in the light of ASMEVIII-2. The structure of diaphragm chamber was modified for the purpose of extending service life and reducing production costs. The analysis results provide some theoretical guidance for research and development of diaphragm chambers and relevant products.

scholarly journals Burst Strength Analysis of Casing With Geometrical Imperfections

2006 ◽  
Vol 129 (4) ◽  
pp. 763-770 ◽  
Author(s):  
Xiaoguang Huang ◽  
Yanyun Chen ◽  
Kai Lin ◽  
Musa Mihsein ◽  
Kevin Kibble ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Strength Analysis ◽  
Element Analysis ◽  
Burst Strength ◽  
The Finite Element Analysis ◽  
Geometrical Imperfections ◽  
Major Factors

Accurately predicting the burst strength is very important in the casing design for the oil and gas industry. In this paper, finite element analysis is performed for an infinitely long thick walled casing with geometrical imperfections subjected to internal pressure. A comparison with a series of full-scale experiments was conducted to verify the accuracy and reliability of the finite element analysis. Furthermore, three predictive equations were evaluated using the test data, and the Klever equation was concluded to give the most accurate prediction of burst strength. The finite element analysis was then extended to study the effects of major factors on the casing burst strength. Results showed that the initial eccentricity and material hardening parameter had important effects on the burst strength, while the effect of the initial ovality was small.

The Finite Element Analysis of the Large-Diameter Composite Slurry Valve Gate

2014 ◽  
Vol 989-994 ◽  
pp. 3149-3152
Author(s):  
Jie Wu ◽  
Zhao Meng Yang ◽  
Dong Zheng Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Large Diameter ◽  
Optimization Method ◽  
Vital Role ◽  
Manufacturing Cost ◽  
Long Distance ◽  
Element Analysis ◽  
Valve Gate ◽  
Composite Slurry

In a long distance slurry pipeline transport system, pulp valve plays a vital role, which combined the pulp valve application is more, ram is one of the important components of composite slurry valve. This article mainly aims at gate has carried on the design and analysis, finite element modeling, and study the corresponding constraints, in the process of loading method, large diameter combination valve gate stress and strain distribution are obtained, combined with the optimization method and finite element analysis software for its structure optimization research, realize the lightweight of the gate. To reduces the manufacturing cost of the gate, as to provide theoretical basis for design.

Finite Element Analysis of Drum on the New Type Self-Driven Towing Machine for Cable

2011 ◽  
Vol 55-57 ◽  
pp. 664-669
Author(s):  
Jin Ning Nie ◽  
Hui Wang ◽  
De Feng Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Compressive Stress ◽  
Wire Rope ◽  
Ansys Software ◽  
Element Analysis ◽  
Structure Improvement ◽  
Improvement Measures ◽  
New Type

According to the situation that the dual-friction drums on the new type towing machine lack stress analysis when designed, the safety is difficult to test and verify. The pull of wire rope in various positions was derived and calculated, so both compressive stress and tangent friction force generated by the pull of wire rope were calculated. The result made by ANSYS software demonstrates the safety of the left drum which suffers from larger loads, structure improvement measures are put forward for the drum.

Weight-Reduction Optimization Design for Milling Planer Bed Based on Finite Element Analysis

2012 ◽  
Vol 490-495 ◽  
pp. 2785-2789
Author(s):  
Dong Sun ◽  
Xu Dong Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Weight Reduction ◽  
Optimization Design ◽  
Weak Link ◽  
Three Dimensional ◽  
Production Costs ◽  
Element Analysis ◽  
Before And After ◽  
Improvement Scheme

The milling planer bed is one of the most important foundational parts for the entire machine, sufficient stiffness is required. The posterior segment of a certain milling planer bed is regarded as the optimization object in this paper. Three-dimensional modeling method is used to calculate the exact weight of the bed and then finite element analysis is used to research the static and dynamic characteristics before and after weight-reduction. The weak link of the bed is found out and a improvement scheme is put forward ensuring lower production costs under the premise of sufficient rigidity.

scholarly journals Effects of Nozzle Die Angle on Extruding Polymethylmethacrylate in Open-Source 3D Printing

2018 ◽  
Vol 15 (2) ◽  
pp. 663-665 ◽  
Author(s):  
Nor Aiman Sukindar ◽  
Mohd Khairol Anuar Mohd Ariffin ◽  
B.T. Hang Tuah Baharudin ◽  
Che Nor Aiza Jaafar ◽  
Mohd Idris Shah Ismail
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pressure Drop ◽  
3D Printing ◽  
Open Source ◽  
Flow Behavior ◽  
Three Dimensional ◽  
3D Printer ◽  
Element Analysis ◽  
Factors Affecting

Open-source 3D printer has been widely used for fabricating three dimensional products. However, this technology has some drawbacks that need to be improved such as accuracy of the finished parts. One of the factors affecting the final product is the ability of the machine to extrude the material consistently, which is related to the flow behavior of the material inside the liquefier. This paper observes the pressure drop along the liquefier by manipulating the nozzle die angle from 80° to 170° using finite element analysis (FEA) for polymethylmethacrylate (PMMA) material. When the pressure drop along the liquefier is varied, the printed product also varies, thus providing less accuracy in the finished parts. Based on the FEA, it was found that 130° was the optimum die angle (convergent angle) for extruding PMMA material using open-source 3D printing.

Study on Failure Trend of Single Shear Hydraulic Lift Platform Structure on Basis of Static Strength Analysis

2013 ◽  
Vol 446-447 ◽  
pp. 544-548
Author(s):  
Ying Shi Sun ◽  
Qian Hui Ma ◽  
Liang Xuan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element Analysis ◽  
Static Strength ◽  
Nonlinear Finite Element ◽  
Hydraulic Lift ◽  
Strength Analysis ◽  
Element Analysis ◽  
Railway Vehicles ◽  
Single Shear

To ensure the safe use of single shear hydraulic lift platform for processing and manufacturing railway vehicles. This paper analyzes the use conditions of single shear hydraulic lift platform, and makes a contact nonlinear finite element analysis on various typical use conditions. The positions of parts subject to danger can be found out through the results of static strength analysis, which finds out the weaknesses and prejudges the failure trend of parts, and which provides guidance for prejudging the faults in actual production and can prevent occurrence of accidents.

Finite Element Analysis of the Thermal Field of Piston in an External Combustion Cam Engine

2011 ◽  
Vol 66-68 ◽  
pp. 1240-1244
Author(s):  
Sheng Yao Gao ◽  
De Shi Wang ◽  
Qi Zheng Zhou
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Optimization Design ◽  
Structural Parameters ◽  
Element Model ◽  
Von Mises Stress ◽  
Strength Analysis ◽  
Element Analysis ◽  
Technical Improvement ◽  
External Combustion

As the most dominative component under stress in an external combustion cam engine, the working condition of piston is very rigor. Once new design type and technical improvement is applied, it is necessary to analysis its thermal load and take secure steps. And the finite element model on each conditions of thermal is calculated, which is used to estimate the temperature field and provide a theoretical basis for further structural strength analysis and optimization design. Choosing analysis results of the piston as reference and taking five structural parameters of the piston as design variables, two objective functions including piston mass and maximal Von Mises stress are respectively considered. The optimum design of the piston is executed and the results indicate that it is feasible to improve temperature field and strength of the piston. These results enrich and develop the research on structural analysis and optimization of spatial engine, which are of guiding significance for analyzing engine strength and related problem in theoretically.

Fatigue Life Assessment of a Ship Unloader Crane

2014 ◽  
Vol 945-949 ◽  
pp. 1086-1089
Author(s):  
Bin Xu ◽  
Tao Zhang ◽  
Feng Qi Wu ◽  
Zhen Rong Yan
Keyword(s):  
Finite Element ◽  
Fatigue Life ◽  
Residual Life ◽  
Dynamic Properties ◽  
Life Assessment ◽  
Strength Analysis ◽  
Dynamic Resistance ◽  
Element Analysis ◽  
Experimental Stress Analysis ◽  
Fatigue Life Assessment

Ship unloader crane was widely used in transportation, and uploaded or unloaded cargoes from ships, which could influence efficiency and benefits of transportation greatly. In order to improve the reliability and safety, and decrease its risk in working flow, a method of fatigue life assessment was proposed in this paper. According to related standards and properties of risk, finite element method and experimental stress analysis were integrated to assess the working condition of a ship unloader crane. Finite element models of primary structures subjected to loads were built to achieve dynamic properties, which could supply a basic reference to experiment and guidance to locate the tested positions. Afterwards, wireless dynamic resistance strain-gauges were adopted to execute static and dynamic stress, and the tested results combined with finite element analysis were applied to strength analysis. Based on nominal stress and Miner principle, rainflow method was developed to fatigue life assessment of this ship unloader crane. The final results indicated that residual life of this crane was 4.67 years.

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