Development of a finite element simulation model for new continuous measuring method of wheel and rail contact force in railway vehicle

2017 ◽  
Vol 2017 (0) ◽  
pp. G1800303
Author(s):  
Yuki NISHINOMIYA
Keyword(s):  
Finite Element ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Contact Force ◽  
Measuring Method ◽  
Railway Vehicle ◽  
Element Simulation ◽  
Continuous Measuring

Research on Surface Roughness of Supersonic Vibration Auxiliary Side Milling for Titanium Alloy

2021 ◽  
Author(s):  
XueTao Wei ◽  
caixue yue ◽  
DeSheng Hu ◽  
XianLi Liu ◽  
YunPeng Ding ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Finite Element ◽  
Prediction Model ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Simulation Software ◽  
Surface Roughness Prediction ◽  
Contour Shape ◽  
Element Simulation ◽  
Roughness Prediction

Abstract The processed surface contour shape is extracted with the finite element simulation software, and the difference value of contour shape change is used as the parameters of balancing surface roughness to construct the infinitesimal element cutting finite element model of supersonic vibration milling in cutting stability domain. The surface roughness trial scheme is designed in the central composite test design method to analyze the surface roughness test result in the response surface methodology. The surface roughness prediction model is established and optimized. Finally, the finite element simulation model and surface roughness prediction model are verified and analyzed through experiment. The research results show that, compared with the experiment results, the maximum error of finite element simulation model and surface roughness prediction model is 30.9% and12.3%, respectively. So, the model in this paper is accurate and will provide the theoretical basis for optimization study of auxiliary milling process of supersonic vibration.

Finite Element Simulation and Experiment of Mechanical Expanding for Longitudinal Welded Pipe

2015 ◽  
Vol 727-728 ◽  
pp. 493-496
Author(s):  
Yun Feng Yao ◽  
Ying Gao ◽  
Jun Xia Li ◽  
Shuang Jie Zhang ◽  
Tao Han
Keyword(s):  
Finite Element ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Nonlinear Finite Element ◽  
Two Dimensional ◽  
Finite Element Software ◽  
Element Simulation ◽  
Dimensional Finite Element ◽  
Simulation And Experiment ◽  
Welded Pipe

A two-dimensional finite element simulation model of longitudinal welded pipe is established by the nonlinear finite element software ABAQUS. Testing enlargement mould is used for the expanding experiments for the welded pipe under the laboratory condition. The expanding force, ovality and the shape are simulated and measured. Comparing the experimental and the simulated results, the values are fitted well.

Analysis and Simulation on the Influencing Factors of Braking Force for Permanent Magnetic Brake

2013 ◽  
Vol 278-280 ◽  
pp. 278-281 ◽  
Author(s):  
Ming Yao ◽  
Liang Wang
Keyword(s):  
Finite Element ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Influencing Factors ◽  
Great Influence ◽  
Element Simulation ◽  
Working Principle ◽  
Main Factors ◽  
Braking Force ◽  
Theory Formula

The structure and working principle of permanent magnetic brake were introduced and the main factors of influencing braking ability of the permanent magnetic brake were analyzed with theory formula. By using of software as Ansoft, an finite element simulation model for magnetic brake were built up, and compare simulate value with theoretical one express that they have better consistency. Based on the simulation model, influencing factors of the braking force about permanent magnetic brake were analyzed, and the simulate results express that the height of gap between brake and track has a great influence on the braking force, so it must pay much more attention on brake design.

Finite Element Simulation Model for High Temperature 4H-SiC Devices

2011 ◽  
Vol 413 ◽  
pp. 229-234 ◽  
Author(s):  
Hassan Habib ◽  
Nicolas G. Wright ◽  
Alton B. Horsfall
Keyword(s):  
Finite Element ◽  
High Temperature ◽  
Simulation Model ◽  
Finite Element Simulation ◽  
Computer Aided Design ◽  
High Performance ◽  
Extreme Environments ◽  
Simulation Models ◽  
Trade Offs ◽  
Element Simulation

In the last decade, or so, many prototype Silicon Carbide devices and circuits have been demonstrated which have surpassed the performance of Silicon for the ability to function in extreme environments. However, the commercialisation of SiC technology now demands high performance and energy efficient miniaturised devices and circuits which can operate on the limited power resources available in harsh and hot hostile environments. This leads to refining, experimenting and perhaps re-designing devices which can rightly claim their share in the current Si dominant market. Consequently, there is a need for accurate simulation models for device engineers to understand device behaviour, examine performance trade-offs and verify the manufacturability of the design. This paper reports the first comprehensive study on the development and validation of high temperature 4H-SiC Technology Computer Aided Design (TCAD) Finite Element simulation model for low power applications. The model is based on 4H-SiC physical and material properties and is validated by high temperature 4H-SiC lateral JFET data, fabricated and characterised by our group at Newcastle University.

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