6,283 research outputs found
Adaptive Active Anti-vibration Control for a Three-dimensional Helicopter Flexible Slung-load System with Input Saturations and Backlash
This study investigates active anti-vibration control for a three-dimensional helicopter flexible slung-load system (HFSLS) subject to input saturations and backlash. The first target of the study is to establish a model for a three-dimensional HFSLS. The second target is to develop an adaptive control law for a HFSLS by analyzing its ability to compensate for the effects of input saturations, input backlash, and external disturbances, while achieving the goal of vibration reduction. Simulation results of the numerical show that the proposed adaptive active control technology is effective in solving the oscillation suppression problem for the three-dimensional HFSLS with input saturations and backlash.</p
Distributed control of large space structures
Theoretical developments and the results of laboratory experiments are treated as they apply to active attitude and vibration control, as well as static shape control. Modern control theory was employed throughout as the method for obtaining estimation and control laws
Adaptive Vibration Control for an Active Mass Damper of a High-rise Building
As a kind of large flexible structure, high-rise buildings
need to consider wind-resistant and anti-seismic problems
for the safety of occupants and properties, especially in coastal
areas. This paper proposes an infinite dimensional model and an
adaptive boundary control law for an active mass damper(AMD)
on this question. The dynamic model of the high-rise building is
a combination of some storeys which have flexible walls and rigid
floors under a series of physical conditions. Then the adaptive
boundary controller is acted on an AMD which is equipped on
the top floor, in order to suppress the vibration of every floor
and guarantee the comfort of residents. Moreover, simulations
and experiments are carried out on a two-floor flexible building
to illustrate the effectiveness of the proposed control strategy
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