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ARTICLE
The Study of Using External Fluid Loading on a Vibrating Rectangular Plate for Suspended Sediment Concentration in Water
Y.C. Liu1,2, Y.H. Hsu1,3, Y.S. Hsu1,4, J.H. Huang1,5
1 Feng Chia University, No. 100 Wenhwa Rd., Seatwen, Taichung, Taiwan 40724, R.O.C.
2 Department of Mechanical and Computer-Aided Engineering; yucliu@fcu.edu.tw.
3 Research and Development Division Research Center for Science and Technology Across the Taiwan Strait; yuhsiung@mail2000.com.tw.
4 Department of Water Resources Engineering and Conservation; yshsu @fcu.edu.tw
5 Acoustic Graduate Program; jhhuang@fcu.edu.tw
Structural Longevity 2011, 6(1), 9-24. https://doi.org/10.3970/sl.2011.006.009
Abstract
This paper presents the result of a theoretical study on a new fluid density measuring concept which uses the effect of external fluid loading on a vibrating
thin plate. The underling physical principle of this concept is that the resonance
frequencies of an immersed vibrating plate change with the surface impedance
changes caused by the mass density variations of the external fluid. In this paper,
the analytical solutions of resonance frequencies with specific gravity are demonstrated by a COMSOL the finite element simulation. The theoretical analysis presented in this paper shows that the resonance frequencies of an immersed vibrating
thin plate affect significantly with surrounding fluid loading, which is loaded as an
extra added mass. The resonance frequencies shifted to lower frequencies when
the fluid specific gravity increased. For the resonance frequency ratio applied to
the specific gravity estimation of onsite measurement, the increases in this coeffi-
cient are directly proportional to the increase with the specific gravity. In addition,
size effect on the thin plate is also presented. The results show that the thickness
of the thin plate is the most important factor for this resonance frequency ratio.
Finally, the preliminary experiment of the thin plate immersed in the various fluid
loading is also accomplished. The comparison shows that the experimental results
agree reasonably well with the finite element simulation. Based on these results of
the theoretical analysis and the experiment in this paper, using the loading by the
external fluid on the vibrating thin plate is feasible.
Keywords
Cite This Article
APA Style
Liu, Y., Hsu, Y., Hsu, Y., Huang, J. (2011). The study of using external fluid loading on a vibrating rectangular plate for suspended sediment concentration in water. Structural Longevity, 6(1), 9-24. https://doi.org/10.3970/sl.2011.006.009
Vancouver Style
Liu Y, Hsu Y, Hsu Y, Huang J. The study of using external fluid loading on a vibrating rectangular plate for suspended sediment concentration in water. Structural Longevity . 2011;6(1):9-24 https://doi.org/10.3970/sl.2011.006.009
IEEE Style
Y. Liu, Y. Hsu, Y. Hsu, and J. Huang "The Study of Using External Fluid Loading on a Vibrating Rectangular Plate for Suspended Sediment Concentration in Water," Structural Longevity , vol. 6, no. 1, pp. 9-24. 2011. https://doi.org/10.3970/sl.2011.006.009