DEVELOPMENT AND APPLICATION OF GLOBAL-PROCESS TENSION ANALYSIS SOFTWARE FOR SUSPEND-DOME BASED ON ANSYS

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Ting Li ◽  
Bingqing Liu ◽  
Zhongyong Meng ◽  
Shen Zhang
Keyword(s):  
Single Layer ◽  
Simulation Method ◽  
Parametric Modeling ◽  
Construction Simulation ◽  
Construction Process ◽  
Analysis Method ◽  
Form Finding ◽  
Force Finding ◽  
Initial Strains ◽  
Tension Analysis

Suspend-dome includes a single-layer latticed shell and the bottom tensegrity system. The overall stress state is closely related to the construction tension process. In order to provide guidance for safe construction of suspend-dome and trouble-free operation, an iterative method to determine initial strains of the bottom tensegrity system under zero state was proposed, and software for global-process tension analysis was developed based on ANSYS. A transform interface module was developed for rapid ANSYS parametric modeling. The optimization was conducted to achieve optimal prestress. A computational module was developed for the form-finding, force-finding, and construction tension analysis. The construction process of a suspend-dome with a span of 106 m was simulated by using the construction simulation method. It was shown that the iterative tension analysis method provided accurate and reliable simulations, which could be further used to determine the prestress and form of suspend-dome. The presuppositions and obtained computation sequences of the construction simulation method agree well with the practical construction process. This construction simulation method can be utilized for construction simulation.

scholarly journals The influence of coupling on the whole process of construction simulation of chord dome structure

2020 ◽  
Vol 143 ◽  
pp. 01046
Author(s):  
Jing Liu ◽  
Fei Meng ◽  
Yingqi Chen ◽  
Zongxue Chen
Keyword(s):  
Finite Element ◽  
Steel Structure ◽  
Simulation Models ◽  
Construction Simulation ◽  
Construction Process ◽  
Finite Element Software ◽  
Whole Process ◽  
New Type ◽  
Dome Structure ◽  
Hoop Direction

：Chord dome structure is a new type of hybrid prestressed spatial steel structure system, which is often used in large-span structures. During the construction of the structure, it is necessary to apply prestress to the ring cable. Taking the chord dome roof of Hebei North University gymnasium as an example, the whole process of prestressed cable construction is simulated and analyzed by using the finite element software ANSYS. The hoop cable of the dome roof can slide freely in the hoop direction, and the attribute of free sliding in the ANSYS interface is "coupling". In this paper, two kinds of simulation models, coupling and uncoupling, are established to compare, and then to explore the influence of coupling on the construction process of string dome structure.

Coupled form-finding and grid optimization approach for single layer grid shells

2013 ◽  
Vol 52 ◽  
pp. 230-239 ◽  
Author(s):  
James Norman Richardson ◽  
Sigrid Adriaenssens ◽  
Rajan Filomeno Coelho ◽  
Philippe Bouillard
Keyword(s):  
Single Layer ◽  
Optimization Approach ◽  
Form Finding ◽  
Grid Optimization

An ontology-driven framework for enhancing reusability of distributed simulation modeling of industrial construction processes

2013 ◽  
Vol 40 (9) ◽  
pp. 917-926 ◽  
Author(s):  
Farzaneh Saba ◽  
Yasser Mohamed
Keyword(s):  
Knowledge Sharing ◽  
Simulation Modeling ◽  
Large Scale ◽  
Distributed Simulation ◽  
World View ◽  
Simulation Models ◽  
Construction Simulation ◽  
Construction Process ◽  
Industrial Construction ◽  
Ontological Modeling

This paper describes an ontology-driven framework for developing distributed simulation modeling of construction processes. The research described in the paper is motivated by the necessity of knowledge sharing between distributed simulation modeling collaborators, and reuse and portability challenges in construction simulation models. Our approach addresses these challenges through ontological modeling and linking of construction simulation modeling components including (i) ontology of construction process, (ii) ontology of simulation world view, and (iii) ontology of distributed simulation modeling application tool. Within the paper, ontology driven approach and mapping of ontologies for information transference between simulation components has been described. Another discussed application of ontologies is structuring of simulation modeling development through use of reusable elements. A large-scale distributed simulation model of industrial construction processes has been outlined to illustrate the application of the approach.

Study on the Constitutive Model of the ARB Specimen and Simulation for ARB Process

2010 ◽  
Vol 42 ◽  
pp. 391-395
Author(s):  
Zhong Wu ◽  
Li Li Liu ◽  
Guo Zhi Zhang ◽  
Jun Jie Xi
Keyword(s):  
Mechanical Property ◽  
Constitutive Model ◽  
Simulation Method ◽  
Strain Ratio ◽  
Strain Gradient Theory ◽  
Gradient Theory ◽  
Analysis Method ◽  
Roll Bonding ◽  
Element Simulation ◽  
Temperature Strain

The simulation method for ARB(accumulative roll bonding) and the constitutive model of the ARB specimen were studied. Based on the ZA(Zerilli-Armstrong) model, with MSG(mechanism-based strain gradient) theory and Hall-petch principle, considering its temperature, strain ratio and the effect of the texture variation to the mechanical property, its dynamic constitutive model was established, and verified through the experiment. Moreover, the finite element simulation method for ARB process based on the dynamic constitutive model established was proposed and verified through the experiment. The study in the paper provides analysis method and theory foundation for ARB

Construction Technology Analysis of Space Heterotypic Steel Frame of Concert Hall in Changsha

2011 ◽  
Vol 94-96 ◽  
pp. 416-420
Author(s):  
Wei Jun Yang ◽  
Yao Li ◽  
Fu Zhong Chen
Keyword(s):  
Energy Analysis ◽  
Steel Frames ◽  
Construction Technology ◽  
Construction Process ◽  
Analysis Method ◽  
Element Analysis ◽  
Lifting Technique ◽  
Welding Technology ◽  
Positioning Method ◽  
3D Positioning

Many heterotypic steel frames with special-shaped are used in the concert of Changsha. It causes difficulties to the construction technology. Based on the characteristic, It is studied the construction process, then put forward the subsection lifting technique, applied energy analysis method for lifting point and used finite element analysis for supporting system. At the same time, it is used measuring robot 3d positioning method and elaborated the operation points, At last, it is analyzed the welding technology. All of these provide guarantee to the smooth construction.

Force Finding Analysis of Hybrid Space Structures

2005 ◽  
Vol 20 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Zhang Zhi-Hong ◽  
Dong Shi-Lin ◽  
Yukio Tamura
Keyword(s):  
Matrix Theory ◽  
Beam Element ◽  
Local Analysis ◽  
Space Structures ◽  
Analysis Method ◽  
Equilibrium Equations ◽  
Force Finding ◽  
Hybrid Space ◽  
String Structure ◽  
Equilibrium Matrix

Some aspects of the application of the equilibrium matrix theory in hybrid space structures are discussed in this paper. In hybrid space structures that are composed of cables and bars only, the flexibility distribution of each bar element should be considered at the same time. Otherwise the structure would probably not be tensioned and constructed successfully. A method to obtain the flexibility distribution of cable-bar hybrid structures is presented by using compatibility equations and equilibrium equations at the same time. This is verified by two numerical examples (Example 1 and 2). In hybrid space structures composed of beams, cables and bars another problem exists, namely constructing the equilibrium matrix of two-node beam element. There are 6 or 3 columns for each two-node beam element in the whole equilibrium matrix. In the case of a suspen-dome there are lots of independent self-equilibrated stress modes. However, in a beam-string structure there is only one self-equilibrated stress mode. In order to avoid the combination of many independent self-stress modes a method named local analysis method is proposed in this paper to obtain the initial pre-stress distribution of the beams. A small beam-string structure is to verify this method.

Molecular Dynamics Simulation of Rarefied Gaseous Flows in Nano-Channels

2013 ◽  
Vol 446-447 ◽  
pp. 12-17
Author(s):  
Zhi Hong Mao ◽  
Fu Bing Bao ◽  
Yuan Lin Huang
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Slip Velocity ◽  
Average Velocity ◽  
Single Layer ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Channel Height ◽  
Gaseous Flows ◽  
Pressure Driven

Molecular dynamics simulation method was used to study the rarefied gaseous flows in nanochannels. A pressure-driven force was introduced to drive the gas to flow between two parallel walls. The effects of driven force magnitude and channel height were investigated. The results show that a single layer of gaseous molecules is adsorbed on the wall surface. The density of adsorption layer decreases with the increase of channel height, but doesnt vary with driven force. The velocity profile across the channel has the traditional parabolic shape. The average velocity and gas slip velocity on the wall increase linearly with the increase of pressure-driven force. The gas slip velocity decreases linearly with the increase of channel height. The ratio of slip to average velocity decreases linearly with the increase of channel height.

Aerodynamic Design Modeling and Simulation by Developing RFID Middleware

2014 ◽  
Vol 543-547 ◽  
pp. 1467-1470
Author(s):  
Shao Song Wan ◽  
Jian Cao ◽  
Cong Yan
Keyword(s):  
Modeling And Simulation ◽  
Graphical User Interface ◽  
Control Process ◽  
Simulation Method ◽  
Parametric Modeling ◽  
Superior Performance ◽  
Aerodynamic Design ◽  
Simulation Test ◽  
Test Environment ◽  
Rfid Middleware

In this paper, a parametric modeling and simulation method is proposed, which provides a virtual simulation test environment for photovoltaic radar. A graphical user interface (GUI) is developed using VC++6.0. With this system, the integration of CAD/CFD application is achieved. Application examples show that, this system can significantly improve the efficiency of aerodynamic design. Finally, it is proved that the control process of developing RFID middleware simulator has superior performance and expected effect.

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