Results 91 to 100 of about 1,939,111 (241)

Modified Gibbs's representation of rotation matrix

open access: yes, 2017
A modified Gibbs's rotation matrix is derived and the connection with the Euler angles, quaternions, and Cayley$-$Klein parameters is established. As particular cases, the Rodrigues and Gibbs parameterizations of the rotation are obtained.
Barzda, V., Kruglov, S. I.
core  

Transonic and supersonic Euler computations of vortex-dominated flow fields about a generic fighter [PDF]

open access: yes
Flow fields about a generic flighter model were computed using FL057, a 3-D, finite volume Euler code. Computed pressure coefficients, forces, and moments at several Mach numbers (0.6, 0.8, 1.2, 1.4, and 1.6) are compared with wind tunnel data over a ...
Goodsell, Aga M., Melton, John E.
core   +1 more source

并联机构的运动伪奇异分析

open access: yesJixie chuandong, 2014
To solve the problem of whether or not singularity when moving platform rotating around second moving shaft of a moving coordinate system at 0or 90,the movement pseudo singularity of a parallel mechanism is analyzed.Combininging a Stewart cross-legged ...
许兆棠   +5 more
doaj  

Gravitational lensing of Euler-Heisenberg black hole surrounded by perfect fluid dark matter

open access: yesNuclear Physics B
In this work, we study the gravitational lensing of Euler-Heisenberg black hole surrounded by perfect fluid dark matter. This kind of black hole solution enables us to investigate the nontrivial interplay between the dark matter effects and nonlinear ...
Ping Su, Chen-Kai Qiao
doaj   +1 more source

Rigid-body Numerical Integration of Io’s Physical Libration Under Multibody Perturbations

open access: yesThe Astronomical Journal
This study investigates the spin–orbit coupling of natural satellites, focusing on Io’s libration as a means of probing its internal structure and tidal responses.
Lidan Zhang   +4 more
doaj   +1 more source

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