Numerical Simulation of Non-Contoured Aerial Cable Tension

2014 ◽  
Vol 919-921 ◽  
pp. 1312-1316
Author(s):  
Zha Wang ◽  
Ji Yao ◽  
Sun Peng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Nonlinear Finite Element ◽  
Form Finding ◽  
Cable Tension ◽  
Initial Form ◽  
Cable Structure ◽  
Aerial Cable ◽  
Element Theory ◽  
Form Finding Analysis

Since the cable structure has the characteristics that its initial form and initial prestressing are interacted unknown values, the FEM software ANSYS was used in this paper, based on the nonlinear finite element theory, the form-finding analysis steps for aerial cable was established. Then based on these steps, the form-finding analysis for non-contoured aerial cable was carried out, and the safety of the form-finding model under icing conditions was evaluated.

Numerical Simulation for the Effects of Ice Thickness on the Overhead Transmission Cable Tension

2014 ◽  
Vol 919-921 ◽  
pp. 1307-1311
Author(s):  
Zha Wang ◽  
Ji Yao ◽  
Sun Peng
Keyword(s):  
Numerical Simulation ◽  
Reliable Method ◽  
Nonlinear Finite Element ◽  
Ice Thickness ◽  
Cable Model ◽  
Displacement Method ◽  
Form Finding ◽  
Cable Tension ◽  
On Line ◽  
Element Theory

A model of single span overhead transmission cable was established in this paper, based on nonlinear finite element theory, combined with supports displacement method and node equilibrium method, form-finding analysis was carried out for the model of single span overhead transmission cable, the cable tension of model was compared with the theoretical calculation value, and the correctness of the model was verified. Then update cable model was analyzed, the sag, tension and ends tilt of cable under different ice thickness was discussed. This paper provided a reliable method for on-line monitoring the safety of overhead transmission cable in icing conditions.

Nonlinear Dynamic Response of Buoys under the Collision Load with Ships

2012 ◽  
Vol 204-208 ◽  
pp. 4455-4459 ◽  
Author(s):  
Liu Hong Chang ◽  
Chang Bo Jiang ◽  
Man Jun Liao ◽  
Xiong Xiao
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Analysis Software ◽  
Element Analysis ◽  
Nonlinear Dynamic Response ◽  
Dynamic Finite Element ◽  
Simulation Results ◽  
Collision Force ◽  
Explicit Dynamic ◽  
Element Theory

The explicit dynamic finite element theory is applied on the collision of ships with buoys for computer simulation. Using ANSYS/LS-DYNA finite element analysis software, the numerical simulation of the collision between the ton ship and the buoy with different structures and impact points. The collision force, deformation, displacement parameters and the weak impact points of a buoy are obtained. Based on the numerical simulation results, analysis of buoys and structural collision damages in anti-collision features are discussed, and several theoretical sugestions in anti-collision for the design of buoy are provided.

Simulation of Excavation Process for Deep Foundation Pit Base on Nonlinear Finite Element Theory

2015 ◽  
Vol 744-746 ◽  
pp. 579-583
Author(s):  
Hui Min Wang ◽  
Zhen Jian Ji ◽  
Liang Cao ◽  
Ji Yao ◽  
Shan Guang Qian
Keyword(s):  
Finite Element ◽  
Safety Evaluation ◽  
Nonlinear Finite Element ◽  
Distribution Law ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Simulation Research ◽  
Deep Foundation Pit ◽  
Excavation Process ◽  
Element Theory

Deep Pit is the main content of modern urban geotechnical engineering. In this paper, based on a deep foundation pit engineering as an example, based on the nonlinear finite element theory, conduct a numerical simulation research for foundation pit excavation process. Obtained the distribution law of pit deformation, stress distribution and the supporting structure of the internal forces, under the various processes. These provide a theoretical basis for safety evaluation of foundation pit engineering.

The Wind Load Analysis of a Cable Net Structure

2013 ◽  
Vol 811 ◽  
pp. 228-233
Author(s):  
Yang Yang ◽  
Yuan Ying Qiu ◽  
Gai Juan Wang
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Wind Load ◽  
Nonlinear Finite Element ◽  
Response Analysis ◽  
Nonlinear Finite Element Method ◽  
Form Finding ◽  
Load Analysis ◽  
The Given ◽  
The Finite Element Model

The response analysis of a large cable net bearing wind load is conducted by the nonlinear finite element method. First, the form-finding calculation of the cable net structure is carried out to find an equilibrium state which can make the pretensions and sags of the wires meet the given requirements. Then the static analyses of the finite element model of the cable net structure under different wind loads are conducted to assess whether the cable net structure meets the requirements for strength. The work of this paper establishes the foundation for the design of a large cable antenna.

Research on the Numerical Simulation of Hot Stamping for High Strength Steel

2014 ◽  
Vol 898 ◽  
pp. 136-139
Author(s):  
Chang Feng Men ◽  
Wen Wen Du ◽  
Cui Hong Han
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
High Strength Steel ◽  
Hot Stamping ◽  
High Strength ◽  
Nonlinear Finite Element ◽  
Weight Percentage ◽  
Finite Element Software ◽  
Simulation Results ◽  
Die Temperature

In order to research on the hot stamping property of high strength steel, the stamping forming of USIBOR1500P is simulated by the nonlinear finite element software Dynaform and Ansys/ls-dyna. The initial data simulated on USIBOR1500P is obtained by the hot tensile test. The simulation results show that the martensite weight percentage and Vickers hardness are in inverse proportion to stamping speed and initial die temperature.

Nonlinear Finite Element Analysis and Experimental Study of Leaf Spring Suspension

2011 ◽  
Vol 63-64 ◽  
pp. 478-481
Author(s):  
Jin Sheng Qiu ◽  
Jie Meng
Keyword(s):  
Finite Element ◽  
Testing Machine ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Leaf Spring ◽  
Design Calculation ◽  
Element Analysis ◽  
Universal Testing ◽  
Spring Suspension ◽  
Element Theory

By the universal testing machine and special fixture, the leaf spring suspension was tested for deformation, and based on nonlinear finite element theory, the suspension was analyzed. The calculation result is coinciding with test result.The finite element model established could be applied to design calculation and parameter optimization of leaf spring suspension.

Numerical Simulation of Aircraft Ditching Based on ALE Method

2014 ◽  
Vol 668-669 ◽  
pp. 490-493 ◽  
Author(s):  
Wei Hu ◽  
Yong Hu Wang ◽  
Cai Hua Chen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Vertical Velocity ◽  
Field Model ◽  
Aviation Safety ◽  
Nonlinear Finite Element ◽  
Accident Analysis ◽  
Finite Element Code ◽  
Fluid Field ◽  
Simulation Results

Aircraft Ditching is related primarily with the aviation safety. Firstly, the full-scaled shape of Boeing 777-200 is modeled according to the lost MH370 aircraft on 8th March. And then an Arbitrary Lagrange-Euler (ALE) fluid-field model is created for water and air domain. Next some simulation cases are implemented related to different vertical velocities using LS-DYNA nonlinear finite-element code, with the same horizontal velocity and attack angle. At the same time, the variations of the velocity of the head and tail are discussed. Consequently, Ditching overload peak occurs at the highest vertical velocity. The simulation results can deeply be applied to accident analysis of aircraft impacting on water.

Dynamics Analysis for Naval Gun with Consideration of Contact between Arc and Gear

2012 ◽  
Vol 479-481 ◽  
pp. 1535-1538
Author(s):  
Xue Wei Ke ◽  
Jian Hou ◽  
Ping Wei
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Element Model ◽  
3D Models ◽  
Nonlinear Finite Element ◽  
Dynamics Analysis ◽  
Tooth Gear ◽  
Naval Gun ◽  
Contact Impact ◽  
Nonlinear Finite Element Model

The effect of contact between cradle arc and main gear of elevating mechanism on muzzle disturbance is studied.The precise 3D models of involute straight tooth gear and arc are constructed by PRO/E software.Considering the contact between cradle arc and main gear of elevating mechanism,the nonlinear finite element model for naval gun is established.The results of numerical simulation show that the contact/impact has great effect on muzzle disturbance.

Simulation Analysis and Process Control of an Arch Bridge for Replacement of Tie Bars

2011 ◽  
Vol 90-93 ◽  
pp. 1720-1725
Author(s):  
Si Tian Chen ◽  
Ting Ting Yang ◽  
Li Qun Wu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Steel Tube ◽  
Nonlinear Finite Element ◽  
Bridge Structure ◽  
Control Parameters ◽  
Analysis Software ◽  
Element Analysis

The numerical simulation analysis, by using senior nonlinear finite element analysis software MSC.Marc, was achieved in this paper for the tie-replacing procedures of a steel tube tied-arch filled with concrete. Through this analysis, the control parameters were accurately determined for the installing of new ties and the removing of old ties. Results of numerical analysis ensured the bridge structure stable during the replacement, made the construction of safe and convenient, and played a guiding role in the maintenance and reinforcement. The successful experience could be referenced by other similar projects.

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