Examining the response pressure along a fluid-filled elastic tube to comprehend Frank[U+05F3]s arterial resonance model

Yuh Ying Lin Wang, Wah-Keung Sze, Chin Chih Lin, Jiang Ming Chen, Chin Chi Houng, Chi Wei Chang, Wei Kung Wang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Frank first proposed the arterial resonance in 1899. Arteries are blood-filled elastic vessels, but resonance phenomena for a fluid-filled elastic tube has not drawn much attention yet. In this study, we measured the pressure along long elastic tubes in response to either a single impulsive water ejection or a periodic water input. The experimental results showed the low damped pressure oscillation initiated by a single impulsive water input; and the natural frequencies of the tube, identified by the peaks of the response in the frequency domain, were inversely proportional to the length of the tube. We found that the response to the periodic input reached a steady distributed oscillation with the same period of the input after a short transient time; and the optimal pressure response, or resonance, occurred when the pumping frequency was near the fundamental natural frequency of the system. We pointed out that the distributed forced oscillation could also be a suitable approach to analyze the arterial pressure wave. Unlike Frank[U+05F3]s resonance model in which the whole arterial system was lumped together to a simple 0-D oscillator and got only one natural frequency, a tube has more than one natural frequency because the pressure P(. z, t) is a 1-D oscillatory function of the axial position z and the time t. The benefit of having more than one natural frequency was then discussed.

Original languageEnglish
Pages (from-to)907-910
Number of pages4
JournalJournal of Biomechanics
Volume48
Issue number6
DOIs
Publication statusPublished - 2015 Apr 13

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Natural frequencies
Pressure
Fluids
Water
Arterial Pressure
Arteries
Blood

Keywords

  • Arterial resonance
  • Pressure wave
  • Wave equation

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

Cite this

Examining the response pressure along a fluid-filled elastic tube to comprehend Frank[U+05F3]s arterial resonance model. / Lin Wang, Yuh Ying; Sze, Wah-Keung; Lin, Chin Chih; Chen, Jiang Ming; Houng, Chin Chi; Chang, Chi Wei; Wang, Wei Kung.

In: Journal of Biomechanics, Vol. 48, No. 6, 13.04.2015, p. 907-910.

Research output: Contribution to journalArticle

Lin Wang, Yuh Ying ; Sze, Wah-Keung ; Lin, Chin Chih ; Chen, Jiang Ming ; Houng, Chin Chi ; Chang, Chi Wei ; Wang, Wei Kung. / Examining the response pressure along a fluid-filled elastic tube to comprehend Frank[U+05F3]s arterial resonance model. In: Journal of Biomechanics. 2015 ; Vol. 48, No. 6. pp. 907-910.
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AU - Houng, Chin Chi

AU - Chang, Chi Wei

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