LQ Structure Design and Verification for FPU

2012 ◽  
Author(s):  
Yooseok Song ◽  
Bowon Choi ◽  
Taeyoon Park ◽  
Sangbae Jeon
Keyword(s):  
Structural Design ◽  
Material Handling ◽  
Structure Design ◽  
Structural Safety ◽  
Escape Route ◽  
Door Opening ◽  
Structural Reinforcement ◽  
Final Design ◽  
Ceiling Height ◽  
Specification Requirement

In this paper, Living Quarter (LQ) structural design and verification is carried out for Floating Production Unit (FPU). There is much requirement at LQ area such as ceiling height, escape route and outfitting line for human living and operation, so it is quite difficult to get an optimum structural design. Generally, for the LQ design, the following requirement should be considered. - Company Specification Requirement - Class Requirement - Means of escape and access to lifeboats - Material Handling - Outfitting routing space such as Duct, piping, MCT (Multi Cable Transit) and Cable tray etc - Structural fire protection - Structural Weight and VCG for FPU stability - Structural safety – Main Structure, Helideck and Platform - Temporary living quarters To meet structural safety criteria under above requirements, global LQ structural analysis and local hole penetration evaluation such as door opening, duct, piping, cable tray and etc is performed. From the analysis results, structural reinforcement is applied at some area and outfitting design and routing is often changed at other areas. To get the final design, this kind of design spiral is repeated. So, close clash checks between structure, outfitting and HES department are essential for LQ design and evaluation. This paper explains how to proceed the LQ design at Shipyard and be a good example.

Structure Design and Test of the High Pressure Vessel for Corrosion Testing

2011 ◽  
Vol 130-134 ◽  
pp. 3893-3897
Author(s):  
Shun Cui ◽  
Shi Feng Wang ◽  
Jun Liang Zhang ◽  
Hui Liu ◽  
Zhong Kui Li ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Vessel ◽  
Structural Design ◽  
Structure Design ◽  
The Body ◽  
High Pressure Vessel ◽  
Pressure Tests ◽  
Final Design ◽  
Air Tightness ◽  
Security Check

This paper have completed the structural design of the GF3.5 25/500, and the cover of the high pressure vessel, flange, the body of the high pressure vessel was stress check, security check, the last combination of pressure tests, air tightness test, Commissioning completion of the three major test the final design.

Kinematics and Dynamics Simulation Research for Roller Coaster Multi-Body System

2011 ◽  
Vol 421 ◽  
pp. 276-280 ◽  
Author(s):  
Ge Ning Xu ◽  
Hu Jun Xin ◽  
Feng Yi Lu ◽  
Ming Liang Yang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Body System ◽  
Load Spectrum ◽  
Roller Coaster ◽  
Simulation Research ◽  
Calculation Results ◽  
Multi Body

To assess the roller coaster multi-body system security, it is need to extract the running process of kinematics, dynamics, load spectrum and other features, as basis dates of the roller coaster structural design. Based on Solidworks/motion software and in the 3D model, the calculation formula of the carrying car velocity and acceleration is derived, and the five risk points of the roller coaster track section are found by simulation in the running, and the simulation results of roller coaster axle mass center velocity are compared with theoretical calculation results, which error is less than 4.1%, indicating that the calculation and simulation have a good fit and providing the evidence for the roller coaster structure design analysis.

Experimental Study of Urea Depositions in Urea-SCR System

2014 ◽  
Vol 937 ◽  
pp. 74-79 ◽  
Author(s):  
Shu Zhan Bai ◽  
Shuai Guo Lang ◽  
Ke Ping Yuan ◽  
Yang Liu ◽  
Guo Xiang Li
Keyword(s):  
Control Strategy ◽  
Structural Design ◽  
Cyanuric Acid ◽  
Exhaust System ◽  
Structure Design ◽  
Exhaust Pipe ◽  
Front End ◽  
Urea Crystallization ◽  
Exhaust Stream ◽  
Scr System

Avoiding the urea deposition in the exhaust stream is one of the basic requirements for SCR system normal application. Unreasonable structure design, machining and installation position all could lead to urea crystallization on the wall of exhaust pipe and the front end surface of the catalyst, in addition, unreasonable control strategy also could deteriorate this phenomenon. The components of the urea depositions are the urea and cyanuric acid analyzed by thermogravimetry - FTIR technology. The integrated injector mounting is designed to alleviate the urea crystallization based on analysis results. The engine test and the vehicle road test are all shown that the optimal structural design and calibration strategies could avoid crystallization and sedimentation effectively in the exhaust system.

Automation of seismic design of high-rise structure with braced steel frame

2021 ◽  
Author(s):  
Xin Zhao ◽  
Gang Wang ◽  
Jinlun Cai ◽  
Junchen Guo
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Structural Design ◽  
Structure Design ◽  
Steel Frame ◽  
Design Methods ◽  
Automatic Design ◽  
Component Level ◽  
Design Algorithm ◽  
High Rise

<p>With the continuous development and progress of society, the structure of high-rise buildings has been paid more and more attention by the engineering community. However, the existing high- rise structure design methods often have a lot of redundancy and have a lot of room for optimization. Most of the existing seismic design methods of high-rise structures are based on engineering experience and manual iterative methods, so that the efficiency of design can not meet the needs of the society. if the method of design automation is adopted, the workload of designers can be greatly reduced and the efficiency of structural design can be improved. Based on the digital modeling theory, this paper proposes a MAD automatic design algorithm, in which the designer provides the initial design of the structure, and the algorithm carries out the modeling, analysis, optimization and design of each stage of the structure, and finally obtains the optimal structure. The structural design module of this algorithm starts from the component level, when the component constraint design meets the limit requirements of the specification, it enters and completes the component constraint design and the global constraint design of the structure in turn. In this paper, taking a ten-story braced steel frame high-rise structure as an example, the optimal design is carried out, and its seismic performance is analyzed. the results show that the MAD automatic design algorithm can distribute the materials to each part reasonably, which can significantly improve the seismic performance of the structure and realize the effective seismic design.</p>

scholarly journals Structure design and reliability analysis of Al-Ti lugs

2021 ◽  
Vol 39 (1) ◽  
pp. 1-8
Author(s):  
Yunwen Feng ◽  
Jiale Zhang ◽  
Xiaofeng Xue ◽  
Xiaoping Zhong ◽  
Wei Xie
Keyword(s):  
Reliability Analysis ◽  
Structural Design ◽  
Design Principle ◽  
Load Transfer ◽  
Design Method ◽  
Static Strength ◽  
Structure Design ◽  
Safety Design ◽  
Design Requirements ◽  
Metal Materials

Aircraft lug joint is the key part of load transfer. In order to improve the safety of lug joint, on the premise of meeting the design requirements of static strength and fatigue, the composite connection lug structure design technology of different metal materials is proposed in this paper. Firstly, the damage safety design and life reliability analysis of the lug structure are studied theoretically. Secondly, based on the concept of damage safety design and the design principle of deformation coordination, the design method of composite connection lug with deformation coordination is proposed, and the thickness ratio of single ear is 0.8:1:0.8. Finally, the reliability of the composite lug is analyzed. The results show that the structural design scheme of aluminum-titanium composite ear piece can meet the requirements of static strength and damage tolerance, and compared with the conventional ear structure, the failure probability of structure mission life is greatly reduced when the weight of the composite connection lug is only increased by 4.9%. The proposed method can effectively guide the structural design of composite ear piece.

scholarly journals Discussion on Prefabricated Concrete Structure Design Method under BIM Technology

2020 ◽  
Vol 198 ◽  
pp. 03011
Author(s):  
Wang Hongyan ◽  
Zhang Zihong
Keyword(s):  
Life Cycle ◽  
Structural Design ◽  
Concrete Structure ◽  
Production Efficiency ◽  
Design Method ◽  
Collaborative Work ◽  
Structure Design ◽  
Building Information ◽  
Correct Understanding ◽  
Design Construction

BIM is a data tool used in various stages of design, construction and management. It can integrate different models of buildings and realize sharing and transmission during the life cycle of the project, ensuring that engineering technicians can access different building information with a correct understanding and real-time response, it lays a good foundation for different participants including design, construction and management to achieve collaborative work. It is very important whether it is to ensure production efficiency, save costs and shorten construction periods. For the newly emerging prefabricated buildings, their structural design will become more efficient, accurate and reasonable due to the introduction of BIM technology.

Structural Design of the Robot Arm for Massage Based on the Chain Drive

2012 ◽  
Vol 605-607 ◽  
pp. 1547-1551
Author(s):  
Zhan Li Wang ◽  
Qian Liang ◽  
Bang Cheng Zhang
Keyword(s):  
Structural Design ◽  
Elbow Joint ◽  
Structure Design ◽  
Robot Arm ◽  
Chain Drive ◽  
Element Analysis ◽  
Overall Design ◽  
Transfer Mode ◽  
Design Requirements ◽  
Robot Technology

With the development of robot technology, massage robot has attracted fully attention, and the study about robot arm has been a growing interest in the area of massage robot. This article has put forward a new massage robot arm, which uses the chain as the main transfer mode by the requirements of the overall design massage of the robot arm. The design of big arm, shoulder joint, forearm, elbow joint and wrist are introduced. Based on the design requirements, we made some improvements with sprockets, ensuring transmission conditions and meeting the massage requirements. And finite element analysis for the designed arm, results show that the structure design can meet the requirements.

Research on Design Reference Period and Structural Design Method

2011 ◽  
Vol 368-373 ◽  
pp. 2364-2368
Author(s):  
Jia Nian He ◽  
Zhan Wang
Keyword(s):  
Structural Design ◽  
Reliability Index ◽  
Design Method ◽  
Structure Design ◽  
Reference Period ◽  
Building Structure ◽  
Safety Factors ◽  
Importance Factor ◽  
Partial Safety Factors

In structure design, for expressions with partial safety factors, partial safety factors and nominal value of loads are calculated based on the presupposition that the design reference period is 50 years. When the design reference period is not 50 years, it would cause unclear reliability of building structure by using expressions with partial safety factors following correlative codes yet. It may lead to hidden dangers in that way. In order to derive expressions with partial safety factors suitable for any design reference period, two useful methods are shown in this paper, modification of partial safety factors and modification of importance factor of structures. From results of analysis, we get the conclusions that it can assure the reliability index of the expression using the method of modification of partial safety factors, and the method of modification of importance factor of structures is very simple, but cannot assure the reliability index of the expression.

The Consideration of Welding Profiles in Fatigue Evaluation of Structure Design

2006 ◽  
Author(s):  
D. Zhang
Keyword(s):  
Fatigue Life ◽  
Engineering Design ◽  
Structural Design ◽  
Structure Design ◽  
Offshore Platforms ◽  
Efficient Design ◽  
Structural Fatigue ◽  
Different Shapes ◽  
Fatigue Evaluation ◽  
The Impact

Structural fatigue plays a very important role in plating structural design. There are a lot of efforts in finding effective ways to improve the fatigue life of the plating structure. One of the means is to use welding profile. Welding profile is widely used in fatigue sensitive areas to improve the fatigue life of offshore platforms. How to evaluate the impact of welding profile to fatigue life calculation has always been the topic of engineering design. This paper will study the impact of different shapes of welding profiles to the fatigue life of structure through a real project example, and discuss its application in platform design. Different welding profiles have large impact on fatigue life; and an achievable good welding profile can improve the fatigue life dramatically. With the help of welding profiles, offshore engineers can achieve a more efficient design of the structure.

scholarly journals Structural Design and Impact Analysis of Deployable Habitat Modules

2018 ◽  
Vol 2018 ◽  
pp. 1-15
Author(s):  
Yihong Hong ◽  
Wenjuan Yao ◽  
Yan Xu
Keyword(s):  
Structural Design ◽  
Impact Analysis ◽  
Dynamic Responses ◽  
Design Parameters ◽  
Composite Shells ◽  
Steel Cylinder ◽  
Low Speed ◽  
Fea Model ◽  
Future Space ◽  
Final Design

Space-deployable habitat modules provide artificial habitable environments for astronauts and will be widely used for the construction of future space stations and lunar habitats. A novel structural design concept of space-deployable habitat modules consisting of flexible composite shells and deployable trusses has been proposed. Geometric relationships of deployable trusses based on two types of scissor elements were formulated. Flexible composite shells of space habitat modules were designed, and a nonlinear FEA model using ANSYS software was described. Considering folding efficiencies, stiffness, and strength of the structures, the influences of design parameters were analyzed and the final design scheme of space-deployable habitat modules was determined. After detailing the structural designs, low-speed impact dynamic responses between the structures and a stainless steel cylinder were simulated. The analysis results show that dynamic responses are only significant at the point of low-speed impact. The works will provide technical supports for structural designs and engineering applications of space-deployable habitat modules.

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