Design of low-frequency multi-mode vibration suppressor based on dynamic vibration absorption principle

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (3) : 150-158.

CHENG Yipeng1, PENG Zilong1, WEN Huabing1, SONG Hao2, GUO Yousong3

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Abstract

For the purpose of structural low-frequency vibration control, a multi-mode suppressor was designed based on the principle of dynamic vibration absorber (DVA). In order to study the vibration suppression effect of DVAs array and vibration suppressors array, dynamic coupling model of four-edge simply supported plate attached with DVAs array was established, vibration control effect of DVAs array was verified; A multi-mode low-frequency vibration suppressor was established, whose main component is rubber plate attached with mass block, rubber base attached with metal cylindrical shell. Axial resonance modal frequency of each component was theoretically calculated, geometrical parameters and material parameters of vibration suppressor was adjusted based on DVA parameters, vibration control effect of vibration suppressors array was verified by simulation and experiment. Results shows that: the best vibration control effect can be reached when biggest deformation location is covered by DVAs array or vibration suppressors array; both DVAs array and the vibration suppressors array have certain vibration control effect, different from the point contact between the vibration absorber and the controlled object, the surface contact amplifies the damping effect in vibration control, so the vibration control effect of the vibration suppressors array is more obvious.

Key words

dynamic vibration absorber (DVA) / vibration suppressor / multi-mode vibration control / rubber base

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CHENG Yipeng1, PENG Zilong1, WEN Huabing1, SONG Hao2, GUO Yousong3. Design of low-frequency multi-mode vibration suppressor based on dynamic vibration absorption principle[J]. Journal of Vibration and Shock, 2023, 42(3): 150-158

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