Experimental Robustness Study of Positive Position Feedback Control for Active Vibration Suppression
نویسندگان
چکیده
Again, these quantities will be more sensitive if the moments of inertia are close than if they are widely spaced. For a vehicle with nominal inertias satisfying I1 D 2I3 and I2 D 1:5I3, and the 1% normalized inertia perturbations considered earlier, arctan ° can vary from 31.8 to 38.7 deg, a total range of 6.9 deg. Using Eqs. (13) and (14) together allows the possible variations in absolute separatrix directions to be quanti ed as a function of the inertia error bound ±, thus providing the desired insight into sizing ±y as a function of ±.
منابع مشابه
The Comparative Study of Vibration Control of Flexible Structure Using Smart Materials
Considerable attention has been devoted to active vibration control using intelligent materials as PZT actuators. This paper presents results on active control schemes for vibration suppression of flexible steel cantilever beam with bonded piezoelectric actuators. The PZT patches are surface bonded near the fixed end of flexible steel cantilever beam. The dynamic model of the flexible steel can...
متن کاملUtilizing ABAQUS to Analyze the Active Vibration Suppression of Structural Systems
ABAQUS can be utilized in the numerical simulation of active feedback control for the purpose of vibration suppression of structural systems. Using the example of active control of a cantilever beam, the Positive Position Feedback (PPF) control algorithm is coupled into an ABAQUS dynamical structural model with the assistance of user-defined subroutines. The transient response of the beam with ...
متن کاملTitle: Active Vibration Suppression of Smart Structures Using Piezoelectric Shear Actuators
Current active vibration suppression systems usually consist of piezoelectric extension actuators bonded to the surface or embedded within the structure. The use of piezoelectric shear actuators/sensors has been proposed as an alternative, where the electric field is applied perpendicular to the direction of polarization to cause shear deformation of the material. We present an exact analysis a...
متن کاملImplementation of ℋ∞ Modified Positive Position and Velocity Feedback controllers for active vibration control of flexible structures in multimode
Abstract— In this paper, H∞ Modified Positive Position Feedback (HMPPF) and H∞ Modified Positive Velocity Feedback (HMPVF) controllers are developed as two novel controllers for active vibration suppression in flexible structures. The controllers use the concept of positive feedback and are enhanced by the powerful optimization ability of the H∞ to provide effective vibration suppression. After...
متن کاملActive Vibration Suppression of a Nonlinear Flexible Spacecraft
In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...
متن کامل