Effect of Steel Stairs to the Overall Performance of Frame Structure

2013 ◽  
Vol 838-841 ◽  
pp. 402-406
Author(s):  
Xin Yan ◽  
Jun Ping Wang ◽  
Xin Chen
Keyword(s):  
Finite Element ◽  
Bearing Steel ◽  
Frame Structure ◽  
Displacement Rate ◽  
Sliding Bearing ◽  
Finite Element Software ◽  
Calculation Results ◽  
Overall Performance ◽  
Eccentric Structure ◽  
The Relationship

In order to clear the relationship between the steel stairs and calculation results, finite-element software was used to make an analysis about the influence of traditional steel stairs and sliding bearing steel stairs to the overall performance of frame structure, including the analysis of influence of eccentric structure under earthquake, and the interlayer displacement rate.

Calculating Mechanics Characteristics of Single-Walled Carbon Nanotube Materials by Finite Element Method

2017 ◽  
Vol 730 ◽  
pp. 548-553
Author(s):  
Jing Ge ◽  
Hao Jiang ◽  
Zhen Yu Sun ◽  
Guo Jun Yu ◽  
Bo Su ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Radial Direction ◽  
Element Model ◽  
Beam Element ◽  
Beam Position ◽  
Single Walled Carbon ◽  
Finite Element Software ◽  
Calculation Results ◽  
The Moment

In this paper, we establish the mechanical property analysis of Single-walled Carbon Nanotubes (SWCNTs) modified beam element model based on the molecular structural mechanics method. Then we study the mechanical properties of their radial direction characteristics using the finite element software Abaqus. The model simulated the different bending stiffness with rectangular section beam elements C-C chemical force field. When the graphene curled into arbitrary chirality of SWCNTs spatial structure, the adjacent beam position will change the moment of inertia of the section of the beam. Compared with the original beam element model and the calculation results, we found that the established model largely reduced the overestimate of the original model of mechanical properties on the radial direction of the SWCNTs. At the same time, compared with other methods available in the literature results and the experimental data, the results can be in good agreement.

Force Calculation for Special-Shaped Column Frame Structure of under Earthquake Action

2014 ◽  
Vol 488-489 ◽  
pp. 561-564
Author(s):  
Dong Yu Ji
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Shear Force ◽  
Frame Structure ◽  
Methods Of Calculation ◽  
Calculation Results ◽  
Earthquake Action ◽  
Force Calculation ◽  
Element Method ◽  
D Value

Using finite element method and D-value method, this paper analyzes on force calculation of the special-shaped column frame structure,and obtains shear force and displacement value of the special-shaped column frame structure under the lateral earthquake action. The two methods of calculation results are compared and analyzed, and the results showed that finite element method is an effective method of calculating special-shaped column frame structure.

Optimization Analysis for Radial Support by Finite Elements Method

2012 ◽  
Vol 466-467 ◽  
pp. 734-738
Author(s):  
Cheng Ming Li ◽  
Yi Fan Wang
Keyword(s):  
Finite Element ◽  
Finite Elements ◽  
Optimal Solution ◽  
Support Point ◽  
Mirror Surface ◽  
Optimization Analysis ◽  
Primary Mirror ◽  
Finite Element Software ◽  
The Relationship ◽  
Surface Figure

Primary mirror’ surface figure is affected by supporting structure obviously. Especially for large-aperture telescope, the surface figure is significant because of primary mirror’ self-weight. For the requirement of the usage, it’s necessary to minimize the surface figure from self-weight by reasonable supporting scheme. The text optimized support point and force of radial support to minimize the surface figure by finite-element software. At the same time, it studied the relationship between support point and counterweight to reduce the weight of support structure. At last, it gave the optimal solution.

Thermal Stresses Simulation Analysis of Concrete Box Water Bridge under the Solar Radiation

2011 ◽  
Vol 255-260 ◽  
pp. 952-956
Author(s):  
Jian Ping Sun ◽  
Jian Ping Chen ◽  
Gang Li
Keyword(s):  
Finite Element ◽  
Tensile Strength ◽  
Solar Radiation ◽  
Thermal Stresses ◽  
Simulation Analysis ◽  
Water Bridge ◽  
Finite Element Software ◽  
Steel Bar ◽  
Calculation Results ◽  
The Difference

The reasons why the producing of the difference in temperature distributing and thermal stresses of box aqueduct under solar radiation are analyzed. The difference in temperature distributing and thermal stresses are effectively simulated by the finite element software ANSYS.The calculation results indicate that concrete box aqueduct body inter-surface whatever along the longitudinal and transverse will produce considerable thermal stresses under solar radiation, and its value has exceeded the design of concrete tensile strength. Therefore, the thermal stresses under the solar radiation must be considered in the design of box aqueduct body structural. We should appropriately configure temperature reinforcing steel bar.

Design and Research of a New Highway Median Guardrail Based on ANSYS

2011 ◽  
Vol 138-139 ◽  
pp. 422-427
Author(s):  
Ying Jin ◽  
Jian Guo Yu
Keyword(s):  
Finite Element ◽  
Design Principles ◽  
Load Force ◽  
Future Research ◽  
Finite Element Software ◽  
Overall Performance

This paper reviewed of the development of highway guardrail status briefly, combined with the median guardrail design principles and requirements, then committed to design a new median guardrail which can improve the overall performance. By using finite element software ANSYS, the new guardrail imposed by the load which the size of the load force the same as auto collision impact, then observed the results to solve and test the strength of guardrail. At last, there was a prospect for future research.

Stress Distribution Behavior of Spherical Plain Bearing Fabricated by TiAl-Based Composite Materials Based on the Finite Element Analysis

2014 ◽  
Vol 1061-1062 ◽  
pp. 649-652
Author(s):  
Jing Wang ◽  
Li Ying Yang ◽  
Shou Ren Wang ◽  
Guang Ji Xue ◽  
Chang Xiu Zhou
Keyword(s):  
Finite Element ◽  
Composite Material ◽  
Composite Materials ◽  
Bearing Steel ◽  
Plain Bearing ◽  
Element Analysis ◽  
Specific Strength ◽  
Finite Element Software ◽  
The Finite Element Analysis ◽  
Spherical Plain Bearing

Spherical plain bearing is a sliding bearing have a spherical contact surface,it can bear larger load and automatically adjusted to the self-alignin. TiAl-based composite material is a material that be used to lightweight spherical plain bearing. The Simulation used the finite element software Ansys for the bearing’s static analysis.The material of outer ring using normal bearing steel, one group used the TiAl-based composite materials as the material of the inner ring, Another group the inner ring material is bearing steel 9Cr18. The law of the stress and strain produced by the two groups is consistent,the deformation of the composite materials is bigger under the same load, its elasticity modulus and density is smaller compared to the ordinary bearing steel,the composite material has the advantages of high specific strength especially in the occasions have strict requirements of the bearing weight.

The Calculation of Deformation Force in Closed Muti-Ram Forging

2010 ◽  
Vol 154-155 ◽  
pp. 969-972
Author(s):  
Chun Dong Zhu ◽  
Bo Zhou ◽  
Hui Wang
Keyword(s):  
Finite Element ◽  
Principal Stress ◽  
Rigid Plastic ◽  
Finite Element Software ◽  
Deformation Force ◽  
The Relationship ◽  
Complex Parts

With the example of rod, this paper introduces principal stress method in the analysis and calculation of deformation force in complex parts manufactured by closed multi-ram forging. The relationship between deformation force and stroke is simulated by rigid-plastic finite element software, and then verified by experiment .It has been shown that principal stress method are accurate in calculating the deformation force of multi-ram forging by comparing and analyzing the results of these three ways.

Numerical Analysis of Torsional Effect of the Eccentric Structure Caused by the Running Train

2011 ◽  
Vol 71-78 ◽  
pp. 1329-1338
Author(s):  
Bi Tao Wu ◽  
Hua Xi Lu ◽  
Ping Ying Liang
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Dynamic Model ◽  
Horizontal Displacement ◽  
Asymmetric Structure ◽  
Eccentricity Ratio ◽  
Finite Element Software ◽  
Horizontal Acceleration ◽  
Torsion Effect ◽  
Eccentric Structure

Application of finite element software ANSYS coupled with the train-ground dynamic model is developed to predict the torsion effect of asymmetric structure. Respectively analyze on eccentricity ratio is 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1.0. Results show that the ground vibrations by the train are slight. Eccentricity of the structure has certain effect on horizontal displacement, horizontal angle displacement, and floor horizontal acceleration.

Finite Element Analysis on Frame Structure of Light Steel Temporary Buildings

2013 ◽  
Vol 351-352 ◽  
pp. 808-811
Author(s):  
Zheng Zhang ◽  
Xue Feng Cai ◽  
Yong Chao Ma ◽  
Ji Zhong Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Simple Structure ◽  
Theoretical Study ◽  
Frame Structure ◽  
Structure Model ◽  
Construction Site ◽  
Element Analysis ◽  
Calculation Results ◽  
Design Loads

Light steel temporary building is commonly used in the construction site, with advantages on simple structure, repeat used and small deadweight. For light steel temporary structure building there are still not enough researches on the mechanical properties and mechanism of action, and there are still not enough relevant standards and requirements to conduct the design and construction of the buildings. In order to precede to theoretical study on frame structure of light steel temporary buildings a method by Finite Element Analysis was proposed. This method is based on FEA software, Ansys. Using this method a monolayer frame structure and a two-story frame structure and a trilaminar frame structure model were analyzed. The calculation results of horizontal displacements under design loads by FEA were obtained and discussed.

Analysis of Bridge Pier’s Dynamic Characteristics Considering Fluid-Solid Interface Coupling

2014 ◽  
Vol 1049-1050 ◽  
pp. 464-468
Author(s):  
Chen Hui Jin ◽  
Bo Ming Zhao ◽  
Run Bo Bai
Keyword(s):  
Finite Element ◽  
Dynamic Characteristics ◽  
Dynamic Performance ◽  
Great Influence ◽  
Water Structure ◽  
Natural Vibration Frequency ◽  
Finite Element Software ◽  
Interface Coupling ◽  
Solid Interface ◽  
Calculation Results

In the study of bridge pier’s dynamic characteristics, the modal analysis is the foundation of other dynamic analysis and is of great significance for studying other dynamic performance. Based on the dynamic theory of fluid-solid interface coupling, a 3D water-structure coupling finite element modal is established and computed by ANSYS. To verify the validity of the calculation results, the results of finite element software is compared with the analytical solutions in reference books. The analysis indicated that the results of finite element software are reasonable when the radius of bridge pier is five times the radius of water body. The ratio of water depth and the bridge pier’s height has a great influence on the change scale of bridge pier’s frequency. With the increase of bridge pier’s height-diameter ratio, the first three order natural vibration frequency is reduced.

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