A beam–ring circular truss antenna restrained by means of the negative speed feedback procedure. (August 2022)

• Record Type: Journal Article
• Authors: EL-Sayed Taha, Ashraf T; Bauomy, Hany S
• Is Part Of: Journal of vibration and control. Volume 28:Number 15/16(2022)
• Page Start: 2032
• Page End: 2051
• Publication Date: 2022-08
• Subjects: Active controller -- truss antenna -- perturbation technique -- primary and 1:2 internal resonances -- saturation phenomena; Vibration -- Periodicals; Damping (Mechanics) -- Periodicals; 620.3
• DOI: 10.1177/10775463211003698
• Languages: English
• ISSNs: 1077-5463

Abstract

The present article contemplates the nonlinear powerful exhibitions of affecting dynamic vibration controller over a beam–ring structure for demonstrating the circular truss antenna exposed to mixed excitations. The dynamic controller comprises the included negative speed input added to the framework's idea. By using the statue, Hamilton, the nonlinear fractional differential administering conditions of movement and the limit conditions have inferred for the shaft ring structure. Through Galerkin's method, the nonlinear partial differential equations referred to overseeing the movement of the shaft ring structure have diminished to a coupled normal differential equations extending the nonlinearities square terms. Multiple time scales have helped in acquiring (getting) the four-dimensional averaged equations for measuring the primary and 1:2 internal resonances. This article's controlled assessment is useful for controlling the nonlinear vibrations of the considered framework. Likewise, the controller dispenses with the framework's oscillations in a brief time frame. The demonstrations of the numerous coefficients and the framework directed at the examined resonance case have been determined. Using MATLAB 7.0 programs has aided in completing the simulation results. At last, the numerical outcomes displayed an admirable concurrence with the methodical ones. A comparison with recently available articles has also indicated good results through using the presented controller.