Results 21 to 30 of about 63,574 (265)
Advances in Mechanical Engineering, 2016 Blades act as key components for twin-blade planetary mixer; their geometric parameters (blade–blade clearance and helical angle) and two different rotating modes (counter-rotating mode and co-rotating mode) were investigated numerically via commercial ...
Jian Liang +4 more
doaj +1 more source
The Normal Modes of a Rotating, Elliptical Earth [PDF]
Geophysical Journal International, 1968 Summary It is possible to calculate precisely the theoretical eigen-frequencies of any Earth model which is non-rotating, spherically symmetric, and which has an isotropic static stress field and an isotropic dynamic stress-strain relation. In this paper Rayleigh's principle is used to provide a formalism which allows the approximate computation of ...
openaire +2 more sources
Ballooning Modes in a Toroidally Rotating Plasma [PDF]
Australian Journal of Physics, 1997 The stability of ideal ballooning modes in the presence of a rigid toroidal rotation is revisited. Two stabilising contributions arising due to rigid toroidal rotation are identified. These stabilising contributions can be particularly significant for present and future generations of low and ultra-low aspect ratio tokamaks.
openaire +2 more sources
Applied Sciences, 2019 Determining the natural frequencies and mode shapes of rotating turbomachinery components from both rotating and stationary reference frames is of paramount importance to avoid resonance problems that could affect the normal operation of the machine, or ...
Alexandre Presas +4 more
doaj +1 more source
Influence of Oxygen Content on the Operating Characteristics of a Disk-shaped Rotating Detonation Engine [PDF]
Journal of Applied Fluid MechanicsRotating detonation engines (RDEs) are an advanced propulsion technology utilizing detonation combustion. RDEs have shown significant potential for substantially enhancing the performance of conventional propulsion systems due to their inherent ...
Z. Xia, H. Ma, B. Sun
doaj +1 more source
Complexity, 2021 This study addresses the challenge of attitude tracking control for a rigid-flexible spacecraft with high-inertia rotating appendages. The Lagrange method was used to establish the kinematic and dynamic models of the spacecraft.
Gaowang Zhang +3 more
doaj +1 more source
Rotational Graviton Modes in the Brane World [PDF]
Journal of High Energy Physics, 2002 9 pages ...
openaire +3 more sources
Method for Denoising the Vibration Signal of Rotating Machinery through VMD and MODWPT
Sensors, 2023 The vibration signals from rotating machinery are constantly mixed with other noises during the acquisition process, which has a negative impact on the accuracy of signal feature extraction. For vibration signals from rotating machinery, the conventional
Xiaolong Zhou +5 more
doaj +1 more source
Inertial modes in a rotating triaxial ellipsoid [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 In this work, we present an algorithm that enables computation of inertial modes and their corresponding frequencies in a rotating triaxial ellipsoid. The method consists of projecting the inertial mode equation onto finite-dimensional bases of polynomial vector fields.
openaire +3 more sources
Photons in polychromatic rotating modes
Physical Review A, 2007 enormously expanded: 12 pages, 3 figures; a new, more informative, but less elegant title, especially designed for Phys.
Enk, G.J. van, Nienhuis, G.
openaire +6 more sources