نتایج جستجو برای: electromagnetic launcher

تعداد نتایج: 77021  

2009
H. Zhao J. A. Souza J. C. Ordonez

This paper presents a 3D model for the determination of the temperature field in an electromagnetic launcher. The large amounts of energy that are dissipated into the structure of an electromagnetic launcher during short periods of time lead to a complicated thermal management situation. Effective thermal management strategies are necessary in order to maintain temperatures under acceptable lim...

2006
Mark A. Johnson Paul Cote Krystyna Truszkowska

The electromagnetic launcher is currently being explored as an alternative to propellant gun systems to satisfy the ordnance requirements of future military systems. Recent improvements in component technologies have increased the plausibility of making the electromagnetic launcher a practical alternative to chemically driven guns. The U.S. Army Armament Research, Development, and Engineering C...

2008
Mark A. Johnson Paul J. Cote

A new technique has been developed for determining the time dependence of the inductance and resistance gradients of electromagnetic launchers. These are fundamental parameters when estimating launcher performance. The method is based on our analysis that shows how a transmission line model describes the relationship between the voltage gradient along the launcher rails and the rate of change o...

Journal: :Advances in Electrical and Electronic Engineering 2015

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

Journal: :Journal of Engineering Materials and Technology 1989

Journal: :IEEE Transactions on Magnetics 1986

2014
Yujiao Zhang Weinan Qin Junpeng Liao Jiangjun Ruan Tao Huang

For the design of three-stage electromagnetic coilgun, many parameters and their relations must be considered at the same time. However, there is no complete mathematical model to describe the relationship between these parameters and energy conversion efficiency of the coil launcher system. In this paper, using orthogonal test approach we consider the influence of 11 parameters to improve the ...

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