document: Design of an adaptive vibration absorber to reduce electrical transformer structural vibration This paper considers the design of a vibration absorber to reduce structural vibration at multiple frequencies , with an enlarged bandwidth control at these target frequencies . While the basic absorber is a passive device a control system has been added to facilitate tuning , effectively giving the combination of a passive and active device , which leads to far greater stability and robustness . Experimental results demonstrating the effectiveness of the absorber are also described
doc_bio_tags: O O O B I I O O B I B I O O O O O O O O O O O B I O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: adaptive vibration absorber electrical transformer structural vibration bandwidth control