Design and implementation of a three-coil linear reluctance launcher

Daldaban, Ferhat; Sari, Vekıl

doi:10.1109/epepemc.2014.6980653

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…To compare between the different design aspects of launchers, the efficiency must be calculated for each. The superiority of the proposed design compared to three different recent research works [7,16,22] is illustrated in Table 8. The efficiency increased by more than two times compared to [16], more than 18 times compared to [7], and about 136% compared to [22] as illustrated in Figure 18.…”

Section: Examination Of the New Design Performancementioning

confidence: 99%

“…The superiority of the proposed design compared to three different recent research works [7,16,22] is illustrated in Table 8. The efficiency increased by more than two times compared to [16], more than 18 times compared to [7], and about 136% compared to [22] as illustrated in Figure 18. A comparison with more references is carried out to illustrate the effect of combining many design aspects in one launcher including the following:…”

Section: Examination Of the New Design Performancementioning

confidence: 99%

“…In this experiment, three launcher configurations are examined. The first configuration is the same launcher type used by the authors of [7,16,22,[24][25][26]. The second and third configurations are soft iron laminated yoke launchers.…”

Section: Experimental Work 61 Verification Of the Magnetic Dipoles Modelmentioning

confidence: 99%

“…In [16], seven cascaded coils are used to reach 130 m/sec exit speed with an efficiency of 1.32% without focusing on the enhancement of a single-coil launcher before cascading many coils. And in [22], a three-winding launcher was developed to accelerate a 7 cm long projectile to 15.66 m/s with efficiency of 2.04%.…”

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confidence: 99%

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Design of A New Electromagnetic Launcher Based on the Magnetic Reluctance Control for the Propulsion of Aircraft-Mounted Microsatellites

Abdo,

El-Hussieny,

Miyashita

et al. 2023

ASI

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Recent developments in electromagnetic launchers have created potential applications in transportation, space, and defense systems. However, the total efficiency of these launchers has yet to be fully realized and optimized. Therefore, this paper introduces a new design idea based on increasing the magnetic flux lines that facilitate high output velocity without adding any excess energy. This design facilitates obtaining a mathematical equation for the launcher inductance which is difficult to analytically represent. This modification raises the launcher efficiency to 36% higher than that of the ordinary launcher at low operating voltage. The proposed design has proven its superiority to traditional launchers, which are limited in their ability to accelerate microsatellites from the ground to low Earth orbit due to altitude and velocity constraints. Therefore, an aircraft is used as a flying launchpad to carry the launcher and bring it to the required height to launch. Meanwhile, it is demonstrated experimentally that magnetic dipoles in the projectile material allow the launcher coil’s magnetic field to accelerate the projectile. This system consists of the launcher coil that must be triggered with a high amplitude current from the high DC voltage capacitor bank. In addition, a microcontroller unit controls all processes, including the capacitor bank charging, triggering, and velocity measurement.

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Section: Examination Of the New Design Performancementioning

confidence: 99%

Section: Examination Of the New Design Performancementioning

confidence: 99%

Section: Experimental Work 61 Verification Of the Magnetic Dipoles Modelmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Design of A New Electromagnetic Launcher Based on the Magnetic Reluctance Control for the Propulsion of Aircraft-Mounted Microsatellites

Abdo,

El-Hussieny,

Miyashita

et al. 2023

ASI

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“…There have been many studies on increasing the projectile velocity by changing the parameters of the reluctance launchers. In such studies, switching of the energy applied on the coil [15], changing the material and geometry of the projectile [16,[22][23][24][25][26], changing the initial position of the projectile [7,11,27], and changing the geometry of the coil [8,28] were also taken into consideration.…”

Section: 𝐸𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑐𝑦mentioning

confidence: 99%

Effect of Change of Reluctance Launcher Parameters on Projectile Velocity

Sari

2023

IEEE Access

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In this study, it is aimed to increase the projectile velocity by changing some parameters of the reluctance launcher. Studied parameters are the initial position of the projectile, the coating of the coil with ferrite, the coil length and the barrel outer diameter. A 3D Maxwell model of the reluctance launcher was generated to examine the effect of the change of these parameters on the projectile velocity. After the 3D model of the launcher was generated, analysis was done for each parameter. During the analysis for a parameter, the other parameters were kept constant. As a result of the analysis of the projectile position, it was determined that the projectile velocity is the highest when the projectile position is -2. It has been determined that the velocity of the projectile increases if the coil is coated with ferrite. It has been determined that the projectile velocity is the highest when the coil length is 7 cm. It has been determined that the highest projectile velocity is obtained when the barrel outer diameter is 18 mm. Using these results, the Maxwell model of the improved launcher was generated. The projectile velocity in the Maxwell model of the initial launcher is 19.24 m/sec. The projectile velocity of the improved launcher in the Maxwell model is 25.8 m/sec. By improving the launcher, a velocity increase of 34.09% was achieved. Later, this launcher was built and the parameters were investigated experimentally. In the experimental work, the projectile velocity of the initial launcher was measured as 19.11 m/sec, and the projectile velocity of the improved launcher was measured as 24.9 m/sec. As a result of the experimental work, a velocity increase of 30.29% was obtained by improving the launcher.

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Electro-Magnetic Launchers on the Moon : A Feasibility Study

Mascolo

Stoica²

2018

2018 NASA/ESA Conference on Adaptive Hardware and Systems (AHS)

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Design and implementation of a three-coil linear reluctance launcher

Cited by 7 publications

References 12 publications

Design of A New Electromagnetic Launcher Based on the Magnetic Reluctance Control for the Propulsion of Aircraft-Mounted Microsatellites

Design of A New Electromagnetic Launcher Based on the Magnetic Reluctance Control for the Propulsion of Aircraft-Mounted Microsatellites

Effect of Change of Reluctance Launcher Parameters on Projectile Velocity

Electro-Magnetic Launchers on the Moon : A Feasibility Study

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