PMID- 29289099
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Linking)
VI  - 142
IP  - 6
DP  - 2017 Dec
TI  - Propagation of monopole source excited acoustic waves in a cylindrical 
      high-density polyethylene pipeline.
PG  - 3564
LID - 10.1121/1.5016962 [doi]
AB  - Acoustic wave propagation (up to 50 kHz) within a water-filled high-density 
      polyethylene (HDPE) pipeline is studied using laboratory experiments and 
      theoretical analysis. Experiments were carried out in a 15 m length of 
      cylindrical HDPE pipeline using acoustic transducers to acquire signals uniformly 
      spaced along the axis of the pipe. By proposing the use of the iterative 
      quadratic maximum likelihood algorithm to this experimental configuration, 
      wavenumbers, attenuations, and mode amplitudes could be accurately extracted from 
      the measurement data. To allow comparisons with theoretical analysis, dispersion 
      curves of the wavenumbers, attenuations, and acoustic power characteristics of 
      the axisymmetric and nonaxisymmetric modes are predicted by extending an existing 
      waveguide model. The model extensions included the introduction of a monopole 
      acoustic source into the water medium so that amplitude variations with respect 
      to individual modes and frequencies could be investigated in detail. In addition, 
      stiffness coefficients of HDPE material are carefully used to account for 
      viscoelastic effects. The comparisons between the theoretical predictions and 
      experimental results demonstrate a very good match and are a validation of the 
      theoretical model.
FAU - Li, Zhao
AU  - Li Z
AD  - Department of Electronic and Computer Engineering, the Hong Kong University of 
      Science and Technology, Hong Kong, 999077, China.
FAU - Jing, Liwen
AU  - Jing L
AD  - Department of Electronic and Computer Engineering, the Hong Kong University of 
      Science and Technology, Hong Kong, 999077, China.
FAU - Murch, Ross
AU  - Murch R
AD  - Department of Electronic and Computer Engineering, the Hong Kong University of 
      Science and Technology, Hong Kong, 999077, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
EDAT- 2018/01/01 06:00
MHDA- 2018/01/01 06:01
CRDT- 2018/01/01 06:00
PHST- 2018/01/01 06:00 [entrez]
PHST- 2018/01/01 06:00 [pubmed]
PHST- 2018/01/01 06:01 [medline]
AID - 10.1121/1.5016962 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2017 Dec;142(6):3564. doi: 10.1121/1.5016962.