Journal ArticleDOI
Isolation of bending vibration in a beam structure with a translational vibration absorber and a rotational vibration absorber
Y. L. Cheung,Wai On Wong +1 more
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TLDR
In this article, it is proved that if damping in a vibrating beam structure is negligible, a translational dynamic absorber used in combination with a rotational dynamic absorbber can absorb both translational and rotational motions for part of a vibration beam subjected to harmonic excitation.Abstract:
One drawback of the traditional dynamic vibration absorber is that it can only absorb the vibration of a continuous structure such as a beam at the point to which it is attached. In this article, it is proved that if damping in a vibrating beam structure is negligible, a translational dynamic absorber used in combination with a rotational dynamic absorber can absorb both translational and rotational motions for part of a vibrating beam subjected to harmonic excitation. An analytical model based on Euler-Bernoulli beam theory is constructed for a beam under partially distributed loading, and it is proved theoretically that the two absorbers can not only absorb vibration in the unforced portion of the beam, but can also isolate vibration in the portion under direct excitation. Two numerical examples are given for illustration, and some useful applications of the absorbers are discussed.read more
Citations
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Journal ArticleDOI
Improved inerter-based vibration absorbers
TL;DR: Improved inerter-based absorbers for vibration mitigation of structural systems can be re-tuned over a certain frequency range by changing only the geometry of the rhombus truss, with considerable benefits in those cases where the structural system parameters may vary during the operational lifetime.
Journal ArticleDOI
Tuned vibration absorber for suppression of hand-arm vibration in electric grass trimmer
TL;DR: In this paper, a tuned vibration absorber (TVA) was used for the suppression of hand-arm vibration in electric grass trimmer, which significantly reduces the risk of hand arm vibration syndrome.
Journal ArticleDOI
Suppression of random vibration in flexible structures using a hybrid vibration absorber
TL;DR: In this paper, a hybrid vibration absorber (HVA) is proposed to suppress stationary random vibration in flexible structures using a special pole-placement controller, such that all vibration modes of the flexible structures become critically damped.
Journal ArticleDOI
Design of a non-traditional dynamic vibration absorber.
Y. L. Cheung,Wai On Wong +1 more
TL;DR: Under the optimum tuning condition of the absorbers, it is proved analytically that the proposed absorber provides a greater reduction in maximum vibration velocity response of the primary system than the traditional absorber.
Journal ArticleDOI
Design of a vibration absorber for harmonically forced damped systems
Ramy Harik,Jimmy S. Issa +1 more
TL;DR: In this article, a new vibration absorber is placed between the primary system and the supporting ground, and the optimal absorber parameters are obtained with the aim of minimizing the maximum primary system frequency response.
References
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Journal ArticleDOI
MEMS power generator with transverse mode thin film PZT
TL;DR: In this paper, a cantilever device is designed to have a flat structure with a proof mass added to the end to create electrical energy via the piezoelectric effect.
Journal ArticleDOI
Design of a dynamic vibration absorber for vibration isolation of beams under point or distributed loading
TL;DR: In this article, a new dynamic vibration absorber combining a translational-type absorber and a rotational type absorber is proposed for isolation of beam vibration under point or distributed harmonic excitation.
Journal ArticleDOI
Active isolation of electronic micro-components with piezoelectrically transduced silicon MEMS devices
TL;DR: In this article, an active suspension system is developed between the support and the sensitive element to isolate the electronic card, either at the case level or at the card level or sensitive element level.
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