Zobrazeno 1 - 10
of 139
pro vyhledávání: '"T.S. Amer"'
Publikováno v:
Alexandria Engineering Journal, Vol 104, Iss , Pp 85-94 (2024)
The dynamical motion of a charged symmetrical solid body (SB) about its main symmetric axis is addressed in this work. The body is supposed to have a chamber with a globular shape, in which it contains a mobile mass and filled with a viscous liquid.
Externí odkaz:
https://doaj.org/article/fa47a3cd339b418e94ab5531e5053ab7
Publikováno v:
Alexandria Engineering Journal, Vol 63, Iss , Pp 377-397 (2023)
This paper studies the vibrational motion of a dynamical system connected to an electromagnetic device, which is one of the energy harvesting (EH) devices that transform the vibrational motion into electric energy. This system has three degrees-of-fr
Externí odkaz:
https://doaj.org/article/60a4504fbdde4681973d6419512a713a
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 11, Pp 8393-8415 (2022)
This paper focuses on studying the dynamical response of a vibrating three degrees-of-freedom (DOF)auto-parametric system near resonance. The structure of this system is composed of an attached damped oscillator with a damped spring pendulum. The gov
Externí odkaz:
https://doaj.org/article/439209f9646447f5b6eb24ce01d21b85
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 9, Pp 6695-6724 (2022)
This article explores the planar motion of a novel dynamical system of three degrees of freedom (DOF) triple pendulum, consisting of a double rigid pendulum attached to an un-stretched one, in which its suspension point is considered to be fixed. App
Externí odkaz:
https://doaj.org/article/35b0e5bfdfb9417d989afee3502847e6
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 9, Pp 7155-7170 (2022)
This paper aims to investigate the rotatory dynamical motion of a charged symmetric gyrostat when its center of mass is slightly displaced from the axis of dynamic symmetry as a novel case. A uniform electromagnetic field, due to the presence of poin
Externí odkaz:
https://doaj.org/article/76adc8d4719146ef9c840f46f123f0c1
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 2, Pp 1625-1641 (2022)
This paper investigates the three-dimensional rotary motion of a charged rigid body (gyrostat) about a fixed point close to the case of Lagrange. We mainly consider the motion under the influence of some forces and moments, on the gyrostat, such as a
Externí odkaz:
https://doaj.org/article/cf0ffefa7dd145309e5f6177476d5773
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 2, Pp 1715-1733 (2022)
This article investigates the motion of two degrees of freedom non-linear dynamical system represented by a spring pendulum in which its suspension point moves in an elliptic trajectory. Lagrange's equations are utilized to derive the governing equat
Externí odkaz:
https://doaj.org/article/8718d939eee64fb7a3164dd5f6293f59
Publikováno v:
Alexandria Engineering Journal, Vol 60, Iss 6, Pp 5655-5673 (2021)
This paper attempts to explore the general rotatory 3D motion of a magnetic heavy solid body around one fixed point under the impact of a gyrostatic moment when the body awarded initially high angular velocity about one of its inertia principal axes.
Externí odkaz:
https://doaj.org/article/035cf0fee53441d8ad5c1a93bb7c4afc
Publikováno v:
Alexandria Engineering Journal, Vol 60, Iss 4, Pp 3539-3551 (2021)
This study explores the nonlinear motion of a double pendulum in which its pivot point travels on an elliptical trajectory with a constant angular speed, and it is attached to an unstretched arm. This arm is then fixed to a damped harmonic spring pen
Externí odkaz:
https://doaj.org/article/cd95a390781046ba8a243bfac30d8a00
Publikováno v:
Results in Physics, Vol 35, Iss , Pp 105391- (2022)
This work demonstrates the 3D motion of 6-DOF rigid body around the main inertial axes relative to a fixed point. The novelty of this work is to examine the influence of the gyrostatic moment vector and the magnetic field on the gyrostatic motion bes
Externí odkaz:
https://doaj.org/article/f092a032e6bd43328a7e77ec77619420