Strength Analysis and Structural Design Improvement of the Drill Floor of a Self-Elevating Drilling Unit

2015 ◽  
Author(s):  
Qi Wang ◽  
Ji Zeng ◽  
Yong Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Structural Strength ◽  
Element Analysis ◽  
Environmental Loads ◽  
Design Improvement ◽  
The Finite Element Analysis ◽  
Floor Structure ◽  
Drilling Unit

The self-elevating drilling units are widely used in the offshore industry for oil and gas exploration. The drill floor structure is the main part of the drilling package for a self-elevating drilling unit due to its key function. Its structural strength checking is of great significance on account of the special structure features and the complex combined loading conditions it suffers. The sufficient structural strength of the drill floor is the base and guarantee for safe drilling and extraction. The finite element method was applied to calculate the structural strength of the drill floor directly considering different load cases which was the combination of environmental loads, permanent loads, variable function loads, and reaction forces from structures and equipments. Total forty load cases were set in the finite element analysis. A detailed finite element model without simplification of the drill floor was built correctly so that it can show the accurate stiffness of the real structure. Based on this model, the design method and the design criterion of the drill floor were described in detail. The environmental loads were calculated according to ABS MODU rules. The influence of the direction of the environmental loads on the drill floor were studied and concluded. Since the drill floor was not just welding with the cantilever beam, the boundary conditions were also particularly introduced owning to the complex connection between them. After finite element analysis and calculation, the stress distribution of the whole drill floor which includes the main girders and derrick supports were obtained. The locations with high stress were found so those places should be paid more attention. The curves which show the stress variation according to the environment loading direction were drawn and their characteristics were found. The load case and the load which have the main effect on drill floor structure were found. As a result, the suggestions for design improvement were put forward for the structural design, and the finite element analysis was run again to test and verify the design improvement. This paper can provide meaningful guidance for the future design of the drill floor.

Fatigue Strength Study on Radial Bogie Vice Frame Based on Finite Element Analysis

2015 ◽  
Vol 723 ◽  
pp. 96-99
Author(s):  
Xiao Wei Wang ◽  
Mao Xiang Lang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Fatigue Strength ◽  
Structural Strength ◽  
Simulation Software ◽  
Experimental Result ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Stability

The vice frame bears and transfers the forces and loads between the bogie and the vehicle body.The strength of the vice frame relates directly to the stability and smoothness of the vehicle. In this study, finite element analysis is utilized first to analyse the structural strength and fatigue life of the vice frame, and the recognize the weak parts of its structure in order to enhance its structural strength in the following design work.The finite element analysis is performed on a simulation software Ansys. Then an experiment is designed to test the fatigue strength of the vice frame. The experimental result indicates that the fatigue strength of the object corresponds to the standards and the finite element analysis has high feasibility in solving this kind of problem.

Structure Analysis of Electron Gun Deflection Coil Based on ProE and ANSYS

2011 ◽  
Vol 201-203 ◽  
pp. 1352-1355
Author(s):  
Hai Lang Liu ◽  
Rui Bin Zhang ◽  
Yi Ping Huang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structure Analysis ◽  
Structural Design ◽  
Electron Gun ◽  
Structure Modeling ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Coil Size

Through the example of the electron gun deflection coil, this paper implements the structure modeling with ProE and makes the finite element analysis with ANSYS .The structure analysis is performed by the combination of the advantages of two softwares. The reasonableness of the design is verified. This method helps to optimize the structural design of the coil. The production of precision of the coil was improved, and coil size can effectively control and reduce material waste.

Rack and Pinion Lifting Device Structural Design of Large-Scale Dynamic Sculpture

2009 ◽  
Vol 628-629 ◽  
pp. 299-304
Author(s):  
C.Y. Lv ◽  
W.W. Shi ◽  
Xian Hai Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Large Scale ◽  
Analysis Software ◽  
Element Analysis ◽  
The Finite Element Analysis

The design of lifting device for a large-scale dynamic sculpture at tourist district was introduced. According to its own characteristics of lift device, the "back-to-back" style of rack and pinion for the lift system was designed. It was used the finite element analysis software to analyze the strength of the rack and pinion which is a key part of the lift device. According to the stress of dedendum for the pinion is too bad, it was proposed that increased the radius of the fillet for dedendum.

A Finite Element Analysis in Structural Design of Wall-Troweling Robot

2013 ◽  
Vol 325-326 ◽  
pp. 1083-1086
Author(s):  
Yu Ming Han ◽  
Mei Jing Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Static Analysis ◽  
Structural Design ◽  
Research Effort ◽  
Virtual Prototype ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Design And Manufacturing

The troweling of wall space is an essential decorative process and the development of wall-troweling robots, which are expected to release labors from the burdensome pargeting tasks, is growing to be a promising sector in todays architectural industry. In this paper, a static analysis is conducted for the key components of troweling disk and vertical guiderail, based on the proposed virtual prototype of wall-troweling robots. The stress distribution across these components provides a sound basis for the structural design. With the finite element analysis module of SolidWorks package, the paper investigates the modal characteristics of the key components operating under practical conditions. The research effort in this paper is contributive to the design and manufacturing of wall-troweling robots.

The Finite Element Analysis and Structure Optimizing of the 42MN Flatting Mill’s Higher Beam

2010 ◽  
Vol 145 ◽  
pp. 317-320
Author(s):  
Chun Ming Zhang ◽  
Run Yuan Hao
Keyword(s):  
Mathematical Model ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Structural Parameters ◽  
Element Model ◽  
Optimum Structure ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Mathematical Model

This text is on the basis of the investigation of the 42MN flatting mill’s higher beam, establishing the flatting mill’s higher beam’s finite element model and the mathematical model which has optimum structure. According to the results of their structure finite element analysis, weaved the relevant procedures and optimized them, obtained ideal structural parameters, this text provide better ideas and ways for the structural design of the flatting mill’s higher beam.

Finite Element Modal Analysis of Frame of Vertical Type High-Pressure Grouting Machine Based on ANSYS

2012 ◽  
Vol 184-185 ◽  
pp. 235-238
Author(s):  
Zhi Cheng Huang ◽  
Ze Lun Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Pressure ◽  
Structural Design ◽  
Natural Frequencies ◽  
Vibration Modes ◽  
Element Analysis ◽  
Design And Optimization ◽  
The Finite Element Analysis ◽  
Pressure Grouting

The frame of 4MPa vertical type high-pressure grouting machine is used as the research object. The finite element analysis software ANSYS is applied to the modal finite element analysis of the frame. The first five order natural frequencies and the corresponding vibration modes of the frame are obtained, and then the influence of every mode shape on the performances of the frame was discussed. It provides a reference for the dynamic structural design and optimization of the frame of vertical type high-pressure grouting machine.

Research on FEA and Optimizing for Structural Design of Pipelayer' Boom

2011 ◽  
Vol 311-313 ◽  
pp. 1370-1374
Author(s):  
Ju An Zhang ◽  
Zhi Qiang Guo ◽  
Jin Fa Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Theoretical Basis ◽  
Three Dimensional ◽  
Material Consumption ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Ansys Workbench

Based on the tool of the ANSYS Workbench software, the modeling of three-dimensional Entity, meshing and dealing of loads and constraints has been done on the pipelayer’boom. According to the finite element analysis of pipelayer’boom in three basic conditions by the parameter of width, height and thickness, the material consumption of making boom is significantly reduced. All this is done in the premise of ensuring the safety of pipelayer’ boom with the objective of minimizing the quality by the finite element optimization. And the results will be the theoretical basis of the design and improvement of Pipelayer’ boom.

Finite Element Analysis of Hydro-Viscous Drive Main Transmission Shaft Using ANSYS

2011 ◽  
Vol 291-294 ◽  
pp. 363-368
Author(s):  
Re Feng So ◽  
Qian Ming Yang ◽  
Xiao Ming Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Complex Function ◽  
Stress And Strain ◽  
Heavy Duty ◽  
Element Analysis ◽  
Transmission Shaft ◽  
Mechanics Performance ◽  
The Finite Element Analysis

The main drive shaft is one of the key component of the Hydro-Viscous Drive device. The advantage or not of the mechanics performance as the shaft running became the focus of technology design since the complexity of structural design caused by complex function and the strain displacement caused by alternating stress in the condition of low-speed and heavy-duty. The mechanics analysis has been accomplished by the traditional way of mechanics and been proved by the ANSYS , as well as the orderliness of the stress and stain been obtained on the condition of bearing conditions in this paper. The result of the finite element analysis has offered the design reference for the shaft optimizing and pointed out that there was the biggest stress and strain value near the oil hole φ22 in the direction of radical.

Finite Element Analysis and Optimization of Spreading System of Rapid Prototyping Machine for Ceramic Parts Based on ANSYS

2011 ◽  
Vol 284-286 ◽  
pp. 1974-1980
Author(s):  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Zhi Gang Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rapid Prototyping ◽  
Working Conditions ◽  
Structural Strength ◽  
Element Analysis ◽  
Structure Deformation ◽  
The Finite Element Analysis

3D modle of spreading platform of rapid prototyping machine for ceramic parts is established in PRO/E, and the modle is input to ANSYS, and the finite element analysis modle of the spreading platform is established by plane elemet; According to the structural strength of the experimental condition, considering the gravity of spreading platform to get the splatform’s stress annlysis and structure deformation in the different working conditions. And the dagenrous section is identitied to provide evidence for the further research, and aslo to provide a reference for other similar products.

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