In this paper a control scheme for electro-dynamic shaker control is proposed. The proposed controller is best suitable for random vibration control in which the excitation signal is a random signal. The controller designed is using acceleration power spectral densities and adaptive filtering technique. The proposed scheme eliminates the requirement of tracking filters in the vibration control ...

This study presents a new strategy for shake table control that uses direct acceleration feedback without need for displacement feedback. To ensure stability against table drift, force feedback is incorporated. The proposed control strategy was experimentally validated using the shake table at the Johns Hopkins University. Experimental results showed that the proposed control strategy produced ...

This paper points out that the stability analysis of the hybrid-damped resolved-acceleration control in our earlier work is incomplete, since the stability was concluded directly from the fact that the joint velocities come to rest as time approaches infinity. A similar incomplete technique was also used in the work of Wampler and Leifer to prove the stability of a damped least-squares resolved...

We look at the problem of real-time tumor tracking and motion compensation in radiotherapy techniques from a pure feedback-control point of view and try to understand it using simple mechanical models of the treatment couch and breathing patterns. Since we want to control a robotic couch based on the data collected in real-time, we propose the use of an acceleration sensor to develop a feedback...

We discuss the effects of the δ2 and Lubkin acceleration methods on the partial sums of Fourier Series. We construct continuous, even Hölder continuous functions, for which these acceleration methods fail to give convergence. The constructed functions include some interesting trigonometric series whose properties were investigated by Hardy and Littlewood.