Theoretical studies demonstrate improved vibration control in elastic beams using a lever-type dynamic vibration absorber, suggesting effective design strategies.
This paper presents theoretical studies on the vibration control of an elastic beam using a lever-type dynamic vibration absorber (Lever-Type DVA). The simply supported beam is adopted as the primary system to investigate the suppression mechanism and parametric influence of a novel lever-type DVA applied to such elastic members. Under harmonic excitation, the H∞ optimization criterion is employed to design the DVA parameters, thereby determining its maximum vibration reduction capacity. A detailed parametric analysis is carried out to examine the effects of key variables, such as the lever amplification factor and fulcrum position on the dynamic response of the beam. The results show that the well-designed DVA can significantly improve the control performance, offering theoretical support and design guidance for the application of lever-type DVAs in beam engineering.
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Liu et al. (2026) studied this question.
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