A Novel Configuration of Multi-stage Outrunner Electromagnetic Launching for Aircraft Catapult System

Thotakura, Sandhya; Kondamudi, Srichandan; Rao, P. Mallikarjuna

doi:10.1007/978-3-030-24318-0_44

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…When the current flows in any direction in the coil, the generated magnetic field excites the projectile in the same direction and attracts the projectile to move toward the center of the coil [6,10,11]. The schematic diagram of a REML is shown in Fig.…”

Section: Theoretical Analysis Of the Solving Methodsmentioning

confidence: 99%

Research on Electromagnetic Dynamics Algorithm of Reluctance Launcher during Acceleration Process

Mengkun,

Junhong,

Xianglie

et al. 2023

IEEJ Transactions Elec Engng

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The structure of the reluctance electromagnetic launcher (REML) is equivalent to an inductor with a movable iron core. The dynamic current in the launching process is easy to be measured by instruments, but the data such as the position, velocity of the projectile and the equivalent inductance are not only difficult to solve by analytical methods, but also difficult to measure by instruments, which seriously hinders the development of the control technology. To solve this problem, referring to the method of introducing the inductance matrix into the motor algorithm model to realize semi-analytic calculation, a special algorithm model is proposed to calculate the launch process data of REML based on the current data. According to the working characteristics of the reluctance coil transmitter, it is pointed out that its inductance matrix should be specifically expressed as a three-dimensional data table rather than a traditional two-dimensional table. The current can be obtained by closed-loop calculation according to the proposed algorithm block diagram when the circuit parameters are known, or measured by instruments when the circuit parameters are unknown, and then the launch process data is obtained indirectly through calculation. In this study, an experimental platform was built, and the algorithm model was established using MATLAB/Simulink. The comparison of the dynamic launch process data of the finite element method (FEM) showed that the method was feasible.

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Section: Theoretical Analysis Of the Solving Methodsmentioning

confidence: 99%

Research on Electromagnetic Dynamics Algorithm of Reluctance Launcher during Acceleration Process

Mengkun,

Junhong,

Xianglie

et al. 2023

IEEJ Transactions Elec Engng

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show abstract

“…According to the research, the multipole field launching principle is fascinating and relevant. Various MFEL analyses, such as the use of flux distribution [13,14,15,16,17], coil twisting [18,19,20], other armature shapes research [21,16], and optimal design [22] utilizing different methods, are also helpful in learning more about the MFEL. Different switching patterns are explained out of which best switching pattern is found to obtain maximum Lorentz force in this article [23].…”

Section: International Journal On Recent and Innovation Trends In Com...mentioning

confidence: 99%

Quadrupole Electromagnetic Linear Positioning System (QELPS):

Kintali Manohar

2023

IJRITCC

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In linear motion systems, including linear motors and actuators, precise and controlled linear motion is provided for various applications. However, they have several drawbacks: high costs, complexity, limited stroke length, high energy consumption, speed limitations, heat generation, noise and vibration, limited load capacity, environmental considerations, and integration challenges. High costs are especially significant for applications requiring high precision. The components' complexity and additional control electronics can increase maintenance and trouble-shooting requirements. Ensuring accurate and efficient operation necessitates regular maintenance. The limitation in stroke length, determined by the drive's size and guide length, can pose challenges for applications requiring long strokes. High energy consumption can be a concern, and speed limitations may be challenging. Managing heat generation is crucial to prevent component damage. Noise and vibration can be problematic, particularly in quiet applications. Integration challenges can arise when dealing with complex systems or automation processes. To overcome some of these drawbacks, an innovative coil configuration design for linear positioning system applications is proposed. The proposed design focuses on the Quadrupole Electromagnetic linear Positioning System (QELPS), comprising four coils generating a uniform electromagnetic field to produce a Lorentz force on the slider. The QELPS design is meticulously crafted using 3D modeling in ANSYS software, and the magnetic characteristics indicate the potential for scaling this model to different levels. The power circuit of the QELPS is simulated using ANSYS Simplorer and incorporates silicon-controlled rectifiers (SCR) and a pulse width modulation (PWM) pulse generator. The design achieves a force of 27.6 newtons with the paper presenting current and force plots in comprehensive detail. Furthermore, an interactive design algorithm is introduced, facilitating the customization of this model for various linear track dimensions. This research aims to advance linear drive technology and enhance linear motion applications by developing this new coil configuration design and harnessing the Quadrupole Electromagnetic System.

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Constraint Based Design of Multi-stage Core Type Multipole Field Electromagnetic Launching System (CMFELS) and Its Possible Use in the Catapult System

Kondamudi

Thotakura

2020

Lecture Notes in Electrical Engineering

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A Novel Configuration of Multi-stage Outrunner Electromagnetic Launching for Aircraft Catapult System

Cited by 6 publications

References 8 publications

Research on Electromagnetic Dynamics Algorithm of Reluctance Launcher during Acceleration Process

Research on Electromagnetic Dynamics Algorithm of Reluctance Launcher during Acceleration Process

Quadrupole Electromagnetic Linear Positioning System (QELPS):

Constraint Based Design of Multi-stage Core Type Multipole Field Electromagnetic Launching System (CMFELS) and Its Possible Use in the Catapult System

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