Comparison Simulation of Friction Heat and Joule Heat in Electromagnetic Railgun

Long Wen Jin; Bin Lei; Zhi Yuan Li; Qian Zhang

doi:10.4028/www.scientific.net/AMM.203.401

Paper Titles

Impact Analysis of Electric Vehicles Charging/Discharging
p.380

The Slipping Analyses of the Belt Conveyor between the Belt and the Roller
p.385

Generation Strategy Optimization Based on Peak Regulation Right Transaction Mechanism
p.390

Attitude Tracking and Location Algorithm of Drill Bit for Underwater Mud-Penetrator
p.395

Comparison Simulation of Friction Heat and Joule Heat in Electromagnetic Railgun
p.401

An Induction Motor Stator Core Fault Model Based on Stator Negative Sequence Current
p.406

Comparison of the Hyperbolic Perturbation Method and the Hyperbolic Lindstedt-Poincaré Method for Homoclinic Solutions of Self-Excited Systems
p.411

Simulation and Research of the EAF Characteristics under Voltage Flicker Using MATLAB
p.416

Portable Personal Electric Scooter Optimization Design Research
p.422

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 203Comparison Simulation of Friction Heat and Joule...

Comparison Simulation of Friction Heat and Joule Heat in Electromagnetic Railgun

Abstract:

A large amount of heat will be produced in the railgun launching process, the heat-induced temperature mutation is an important cause of material failure. To obtain temperature field variation law in railgun, mechanism of heat generation was analyzed according to the basic working principle of railgun. Temperature field was discussed through the method of combining theoretical calculations and Finite Element simulation. The results show that friction heat results in temperature rise on the materials only near the contact interface; temperature rise under the action of current heat around the corner of U-shaped armature is obvious, while maximum temperature is appeared at the side surface and exceeds the melting point of the armature material. The temperature of railgun mainly depends on the current value, while friction heat has smaller effect on it.

You might also be interested in these eBooks

Review of Modern Engineering Solutions for the Industry

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 203)

Pages:

401-405

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.203.401

Citation:

Cite this paper

Online since:

October 2012

Authors:

Long Wen Jin, Bin Lei, Zhi Yuan Li, Qian Zhang

Keywords:

Numerical Simulation, Railgun, Temperature Field

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Lei Bin, Zhu Rengui and Zhang Qian, etc. Production features and research status of gouging in electromagnetic railgun[J]. Ordnance material science and engineering, 2011, 34(3): 76-81. (in Chinese).

Google Scholar

[2] R. A. Marshall and Wang Ying. Railguns: their science and technology[M]. Beijing: China Machine Press, (2004).

Google Scholar

[3] K. Daneshjoo, R. Ahmadi and M. Ghassemi. Dynamic response and armature critical velocity studies in an electromagnetic railgun[J]. IEEE Trans Magn., 2007, 43(1): 126-131.

DOI: 10.1109/tmag.2006.887668

Google Scholar

[4] M. Braunovic, V. Konchits and K. Myshkin. Electrical contacts fundamentals, applications and technology[M]. Beijing: China Machine Press, 2010. (in Chinese).

DOI: 10.1201/9780849391088

Google Scholar

[5] J. P. Barber. Contact current carrying limits[C]. Electrical contacts, Proc 35th IEEE Holm conference on electrical contacts. (1989).

DOI: 10.1109/holm.1989.77915

Google Scholar

[6] R. Holm. Electric contact theory and application[M]. Berlin: Springer-Verlag, (1967).

Google Scholar