Design and Performance of a High-Speed Permanent Magnet Generator with Amorphous Alloy Magnetic Core for Aerospace Applications

Исмагилов, Ф. Р.; Papini, Luca; Vavilov, Vyacheslav; Gusakov, Denis

doi:10.1109/tie.2019.2905806

Cited by 34 publications

(5 citation statements)

References 17 publications

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“…The discharge time of the ultra-capacitor bank Δ and the error of the approximate current can be calculated through Eqs. ( 15)- (17). The results are shown in Table 4 and Table 5.…”

Section: Electromagnetic Propulsionmentioning

confidence: 93%

“…Later, the tradeoffs between the design and control of the electromagnetic coilguns (EML with rails) were discussed, resulting in a set of operational requirements [20]. Ismagilov et al designed a high-speed permanent magnet generator with an amorphous alloy magnetic core for aerospace applications [17], and presented an algorithm for the ultra-high-speed electrical machine (UHSEM) [18]. Inger evaluated the electromagnetic launching to geosynchronously equatorial orbit and its cost [16].…”

Section: Emlmentioning

confidence: 99%

See 1 more Smart Citation

Minimal mass design of a tensegrity tower for lunar electromagnetic launching

Su¹,

Chen²,

Majji³

et al. 2021

Preprint

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Lunar explorations have provided us with information about its abundant resources that can be utilized in orbiting-resource depots as lunar-derived commodities. To reduce the energy requirements of a launcher to send these commodities from the lunar surface to the space depots, this paper explores the application of the electromagnetic acceleration principle and provides an assessment of the actual technical characteristics of the launcher's installation to ensure the acceleration of a payload with a mass of 1,500 kg to a speed of 2,200 m/s (circumlunar orbit speed). To fulfill a lightweight (fewer materials and less energy) support structure for the electromagnetic launcher with strength requirements, the tensegrity structure minimum mass principle without global buckling has been developed and applied to support the electromagnetic acceleration device. Therefore, this paper proposes and develops a minimal mass electromagnetic tensegrity lunar launcher. We first demonstrate the mechanics of launcher and payload, how a payload can be accelerated to a specific velocity, and how a payload carrier can be recycled for another launch. Then, a detailed discussion on the lunar launch system, procedures of propulsion, the required mass, and energy of the launch barrel are given. The governing equations of tensegrity minimal mass tensegrity design algorithm with gravity and without global buckling. Finally, a case study is conducted to show a feasible structure design, the required mass, and energy. The principles developed in this paper are also applicable to the rocket launch system, space elevator, space train transportation, interstellar payload package delivery, etc.

show abstract

“…The discharge time of the ultra-capacitor bank Δ and the error of the approximate current can be calculated through Eqs. ( 15)- (17). The results are shown in Table 4 and Table 5.…”

Section: Electromagnetic Propulsionmentioning

confidence: 93%

Section: Emlmentioning

confidence: 99%

Minimal mass design of a tensegrity tower for lunar electromagnetic launching

Su¹,

Chen²,

Majji³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It is a new high technology magnetic conductivity material. This amorphous alloy has many unique properties, such as excellent magnetism, corrosion resistance, wear resistance, high strength, hardness and toughness, high resistivity, and electromechanical coupling properties [22][23][24]. Because of its excellent performance and simple process, it has been the focus of research and development of material science since the 1980s.…”

Section: Comparison Of Properties Between Amorphous Alloy and Silicon Steelmentioning

confidence: 99%

Electromagnetic Property Analysis of a Bearingless Induction Motor Using Amorphous Alloy Material

Xu¹,

Yang²,

Sun³

et al. 2021

PIER M

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A bearingless induction motor (BL-IM) is a new type of motor integrating suspension and rotation functions. Higher requirements are put forward for its suspension performance. Due to the material advantages of a new type of amorphous alloy with high magnetic conductivity, low loss, and low coercivity, it is considered to be used in the BL-IM rotor to reduce iron loss and improve the electromagnetic performance of the BL-IM. Finite element analysis software is used to analyze the performance of two different kinds of motors with the rotors made of conventional silicon steel and amorphous alloy, respectively. The magnetic field density distribution, torque, speed, and radial force are compared between the two motors. The results show that the speed of amorphous alloy motor increases faster, and the rotor has better suspension characteristics. Moreover, the amorphous alloy material has a smaller density; the material properties can effectively reduce the weight of the motor; it is beneficial to the operation of the BL-IM in special environments.

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“…A high-speed permanent magnet motor has a sound momentum of growth [1], and its application areas involve aerospace [2,3], new energy vehicles, high-speed turbomachinery, industrial machinery [4], intelligent agriculture [5], etc. This is due to their small size and light weight while achieving high-density power and the maximum satisfaction of working conditions [6,7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Interference Fit and Temperature on High-Speed Permanent Magnet Motor

Zeng,

Yang,

Yang

et al. 2023

Applied Sciences

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A high-speed permanent magnet motor is the core driving component of a centrifugal air compressor. The power of the centrifugal air compressor is output by the motor. Its safety and reliability are embodied in the stability of the rotor structure, which greatly affects the stability and working efficiency of the centrifugal air compressor. Much research has focused on the material strength, structural characteristics, and fit clearance of a high-speed rotor, whereas few research articles have focused on the influence of interference fit of high-speed and ultra-high-speed permanent magnet motors, and there is also little research on the thermal failure caused by temperature in high-speed motors. In this paper, the influence of the interference fit and temperature of the high-speed permanent magnet motor is studied. Using finite element analysis conducted by Ansys to obtain simulation data, the influencing factors of the strength of the interference are analyzed comprehensively in the centrifugal compressor rotor system. The interference value and rotational speed range are determined via numerical calculation. Under the condition of minimum interference, when the calculated speed reaches 137,628.82 rpm, the structure of the rotor is loose and fails, which is a mechanical failure caused by the relative sliding of the magnet and the sheath. The calculated speed value differs from the simulation result by about 1.2%. The simulation results show that the maximum stress of the structure can be reduced from 1186.1 MPa to 308.42 MPa by adding chamfer to the end covers in interference fit structure. The effects of interference value, rotational speed, temperature, and sheath thickness on the structure are also analyzed. From the perspective of temperature on structural reliability, the failure temperature of the structure decreases when the interference value increases. The lowest failure temperature is 182.3 °C when the interference value is 70 μm. After that, the interference value increases and the failure temperature increases. The reason for this is the interaction between radial stress and contact stress. These results are caused by the interaction between interference fit and temperature, which should be paid attention to when the structure of a high-speed permanent magnet motor is designed.

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Design and Performance of a High-Speed Permanent Magnet Generator with Amorphous Alloy Magnetic Core for Aerospace Applications

Cited by 34 publications

References 17 publications

Minimal mass design of a tensegrity tower for lunar electromagnetic launching

Minimal mass design of a tensegrity tower for lunar electromagnetic launching

Electromagnetic Property Analysis of a Bearingless Induction Motor Using Amorphous Alloy Material

Influence of Interference Fit and Temperature on High-Speed Permanent Magnet Motor

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