Effects of cantilever aspect ratio and liquid-solid suspensions on resonance in a confined cavity

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The dynamic response of millimeter-scale cantilevers was investigated in liquid-solid suspensions. The gap height d between the cantilever and a solid surface was varied from millimeter range to micrometer range. Different Bimorph cantilevers (aspect ratio b/h=2.0-12.1, where b is the cantilever width and h is the cantilever thickness) were examined. The added mass coefficient increased linearly with aspect ratio. The normalized viscous damping coefficient increased with increasing kinetic Reynolds number but appeared independent of the cantilever aspect ratio. Cantilevers oscillating in liquid-solid suspensions experienced higher effective viscosity than that predicted by shear flow type models. The damping caused by a suspension containing 2% glass beads by volume was significantly stronger than that in a pure liquid for dimensionless particle diameters Dp/d ≥ 0.02.

Original languageEnglish (US)
Title of host publicationProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publicationVolume 2, Part A, Symposia
EditorsA. Ogut, Y. Tsuji, M. Kawahashi
PublisherAmerican Society of Mechanical Engineers
Pages101-107
Number of pages7
ISBN (Print)0791836967, 9780791836965
DOIs
StatePublished - 2003
Event4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
Duration: Jul 6 2003Jul 10 2003

Publication series

NameProceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume2 A

Other

Other4th ASME/JSME Joint Fluids Engineering Conference
CountryUnited States
CityHonolulu, HI
Period7/6/037/10/03

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