Articles with "nutation" as a keyword



Antiferromagnetic and nutation resonance frequencies of antiferromagnets at an arbitrary strength of the applied dc field

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Published in 2024 at "Journal of Applied Physics"

DOI: 10.1063/5.0196622

Abstract: Nutation and precession resonances in an antiferromagnet subjected to a dc magnetic field are investigated by employing coupled linearized inertial Landau–Lifshitz–Gilbert equations describing the dynamics of magnetizations of antiferromagnet sublattices with uniaxial magnetocrystalline anisotropy. Analytical… read more here.

Keywords: field; nutation; resonance frequencies; nutation resonance ... See more keywords

Nutation terms adjustment to VLBI and implication for the Earth rotation resonance parameters

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Published in 2019 at "Geophysical Journal International"

DOI: 10.1093/gji/ggz468

Abstract: The nutation harmonic terms are commonly determined from celestial pole offset series produced from very long baseline interferometry (VLBI) time delay analysis. This approach is called an indirect approach. As VLBI observations are treated independently… read more here.

Keywords: resonance parameters; vlbi; nutation terms; nutation ... See more keywords

Precession Relaxation of Viscoelastic Oblate Rotators

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Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stx2328

Abstract: Perturbations of all sorts destabilise the rotation of a small body and leave it in a non-principal spin state. In such a state, the body experiences alternating stresses generated by the inertial forces. This yields… read more here.

Keywords: precession relaxation; relaxation; viscoelastic oblate; rate ... See more keywords

Low-frequency signature of magnetization nutation in nanomagnets

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Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.110.054415

Abstract: In this work, we show that surface anisotropy in nanomagnets induces a nutational motion of their magnetization at various frequencies, the lowest of which can be described by the macrospin model whose dynamics is governed… read more here.

Keywords: nutation; surface anisotropy; magnetization; frequency signature ... See more keywords

Kinematic analysis, structural design and prototype verification for the single-stage nutation drive

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Published in 2025 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"

DOI: 10.1177/09544062251316779

Abstract: Nutation drive has advantages of large transmission ratio, high load-bearing capacity and compact structure, making it a promising solution for precise transmission in various fields such as industrial robots, electric vehicles, and space explorations. However,… read more here.

Keywords: transmission; methodology; nutation; nutation drive ... See more keywords

Dynamic Stability Analysis of Magnetically Levitated Rotor in a Nutation Blood Pump

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Published in 2024 at "Sensors and Materials"

DOI: 10.18494/sam5109

Abstract: Improving the performance of nutation blood pumps has long been a focus of medical research. In this study, we introduce the finite element method combined with sensor-based experimental measurements to explore the factors affecting the… read more here.

Keywords: nutation; stability; blood pump; rotor ... See more keywords
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Mathematic Modelling and Numerical Analysis for a Novel Inner-Type Nutation Magnetic Drive

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Published in 2020 at "Energies"

DOI: 10.3390/en13061346

Abstract: This paper presents an inner-type of magnetic gears for non-contact driving, based on the nutation gearing principle. An improved three-dimensional analytical model, based on the magnetic vector potential of rectangular permanent magnets, via the equivalent… read more here.

Keywords: magnetic drive; nutation magnetic; model; inner type ... See more keywords

Contact dynamics analysis of nutation drive with double circular-arc spiral bevel gear based on mathematical modeling and numerical simulation

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Published in 2021 at "Mechanical Sciences"

DOI: 10.5194/ms-12-185-2021

Abstract: Abstract. This paper describes a dynamic mathematical model of a new type two-stage nutation drive system with double circular-arc bevel gears. The dynamic displacement–vibration coupling model takes into account the gyro torque and side clearance… read more here.

Keywords: circular arc; nutation; nutation drive; double circular ... See more keywords