Design and development of electromagnetic launch pad for weather forecasting

Raj, Anuradha; Ajith, B.; Soman, Ajith; Mathew, Jose; Prasad, M. Manu; Ajan, A.; Krishnan, Anith; Balakrishnan, Jijo

doi:10.1109/iceeot.2016.7755646

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2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) 2016

DOI: 10.1109/iceeot.2016.7755646

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Design and development of electromagnetic launch pad for weather forecasting

Anuradha Raj

B. Ajith

Ajith Soman

et al.

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2017

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“…Electromagnetic launch pads find their application even in weather forecasting [4].When a current flowing through a winding produces a magnetic field, the magnetic field will exert a force (Lorentz force) given by the right-hand rule [5]. The muzzle velocity attained by the projectile used in an electromagnetic launcher is dependent on the charging voltage of the storage device.…”

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Design and Simulation of an Electromagnetic Launcher for Ordnance Applications

Dayi¹,

Vijayan²

2017

IJET

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Abstract-This paper presents a model of electromagnetic coil gun launcher with simulation studies and experimental model validating the proposed strategy. Military research organisations are recently developing electromagnetic rail gun launcher for long range weapons that launch projectile electrically instead of chemical propellants at a speed exceeding Mach 7. Even though Rail gun launchers are used for long range weapons, it suffers from barrel wear down after a dozen of shell firing and weapon heat generated degrading the performance. It requires non-flammable liquid gas like nitrogen for reducing the heat generated at the rail barrel. Instead of rail guns, coil guns are more safe and accurate for high velocity military weapons. Coil gun projectile have no direct contact with the high voltage coil and the projectile is passing through the barrel axis avoiding friction causing wear down. No heat is generated between projectile and stator coils Keyword -Electromagnetic Launcher, muzzle velocity, Lorentz force I. INTRODUCTION Electromagnetic Launching system is used in defence mainly for launching high-velocity missiles [1]. US Navy recently developed a 33MJ prototype which can attain a speed of MACH 7 (1 Mach= 340.3 m\s), generally atomic Blitzer rail gun [2]. According to present status, the system is capable of reaching more than 100 nautical miles (1nm = 1.852 m\s) in several minutes. Since rail guns are simple in construction, their thermal management is highly complex, and it needs plasma discharge losses. Large installation cost, high-grade thermal insulation are some of the other requirements for the rail gun type electromagnetic launcher. Thus trying to concentrate on Electromagnetic Launcher (EML), where actuator force is given by coil (or solenoid) is considered as the research topic.Finite Element Analysis (FEA) models provide a platform for estimation and analysis of the magnetic force associated with a coil [3]. Electromagnetic launch pads find their application even in weather forecasting [4].When a current flowing through a winding produces a magnetic field, the magnetic field will exert a force (Lorentz force) given by the right-hand rule [5]. The muzzle velocity attained by the projectile used in an electromagnetic launcher is dependent on the charging voltage of the storage device.Since a battery is switching for a small time, the battery cannot provide a high current to flow through the coil in a short period. Capacitors can provide a very high current in a minimal time, unlike a battery. The charge across the capacitor is given to coil in three steps. First, the energy needed for acceleration is stored in the capacitor. Secondly, the energy stored in the capacitor is transmitted to the projectile in shortest possible time (high energy current peak creates a strong electromagnetic field). Third, the current pulse must be switched OFF before projectile passes half of coil length to prevent from being arrested at the centre of the magnet. The product of resistance and capacitance denotes the c...

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confidence: 99%

Design and Simulation of an Electromagnetic Launcher for Ordnance Applications

Dayi¹,

Vijayan²

2017

IJET

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Design and development of electromagnetic launch pad for weather forecasting

Cited by 1 publication

References 1 publication

Design and Simulation of an Electromagnetic Launcher for Ordnance Applications

Design and Simulation of an Electromagnetic Launcher for Ordnance Applications

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