Topic
Active vibration control
About: Active vibration control is a research topic. Over the lifetime, 6770 publications have been published within this topic receiving 76599 citations. The topic is also known as: active vibration damping.
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TL;DR: This work deals with asymptotic trajectory tracking and active damping injection on a flexible-link robot by application of Multiple Positive Position Feedback, where the dynamic performance of the overall active vibration control scheme leads to fast and effective tracking results, with damping ratios increased up to 300%.
35 citations
TL;DR: In this article, a multi-positive feedback (MPF) controller for active vibration reduction in piezoelectric-actuated flexible structures is presented, which consists of two sections where each operates using a set of actuators.
35 citations
TL;DR: In this paper, an acceleration sensor-based modal identification and active vibration control method is presented for the first two bending and first two torsional modes vibration of the cantilever plate.
35 citations
TL;DR: In this article, a self-adapting vibration control system for damping augmentation in smart composite beams is developed, which consists of a dynamic diagonal recurrent neural network (DRNN) and an adaptable feed forward neural network.
35 citations
TL;DR: In this paper, an experimental study of an active shaft transverse vibration control system for suppressing gear mesh vibratory response due to transmission error excitation in a high power density gearbox is presented.
Abstract: An experimental study of an active shaft transverse vibration control system for suppressing gear mesh vibratory response due to transmission error excitation in a high power density gearbox is presented. The proposed active control concept employs a piezoelectric stack actuator to deliver the control force through a secondary bearing. A versatile test stand that includes a closed-loop, power recirculating, dual-gearbox set-up capable of high load transfer is specially designed for this work. The underlying controller for computing the actuation signal is based on a modified filtered-x LMS algorithm with a robust frequency estimation technique. In order to avoid the common out-of-band overshoot problem, an integrated adaptive linear enhancer is also applied. Both single mesh frequency and multi-harmonic control cases are examined to evaluate the performance of the active control system. Additionally, the impact of the adaptive linear enhancer order as well as the controller adaptation step size on active control performance is evaluated. The experiments performed show more than 10 dB reduction in housing vibrations at certain targeted mesh harmonics over a range of operating speeds.
35 citations