THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN
Online ISSN : 2432-2040
Print ISSN : 0369-4232
Search
Advanced search
OR
Browse
Search
Volume 27, Issue 5
Displaying 1-6 of 6 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • Effect of Local Paring on the Acoustical Property of the Japanese Bell
    Akira Komatsuzawa, Masaatsu Ise
    Article type: Article
    1971 Volume 27 Issue 5 Pages 239-245
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_239
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The experimental research on the acoustical property of the Japanese Bell subjected to local paring is presented in order to find the method of adjusting the frequency of the beat. It has been made clear that the natural frequency is advanced slowly by paring the nipples, and the natural frequency is reduced by paring locally the surface of bell. When the paring is applied to the L nodal line of the fundamental tone, the H frequency varies larger than the L one. Accordingly, the beat frequency, that is, the difference between the H and L frequency, can be adjusted.
    View full abstract
    Download PDF (731K)
  • Acoustic Interferences in Vortex-shedding from a Circular Cylinder
    Goroh Yamanaka, Tsutomu Adachi
    Article type: Article
    1971 Volume 27 Issue 5 Pages 246-256
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_246
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    In this paper, acoustic interferences in periodic vortex-shedding from a circular cylinder in an air flow are investigated with the aid of constant temperature hot-wire anemometers, a frequency analyzer and so on. In this way, we investigated the mechanism of vortex-shedding. Experiments were made at Reynolds numbers of 1800 and 5600, and sounds for each Reynolds number were progressive and standing sound fields, respectively. As the result of the acoustic interferences, the vortices are shedded nearer the cylinder, and are stronger than these without sounds. ; however, the shedding frequency changes a little. There are two acoustic frequency groups which produce powerful effects on vortex-shedding. One is a narrow frequency range centering around the natural vortex-shedding frequency, and the other is a relatively wide frequency range which corresponds to the frequency of the laminar-turbulent transition wave in the separated boundary layers. The latter has a larger effect on the vortex-shedding than the former.
    View full abstract
    Download PDF (1125K)
  • Observation of the Larynx during Articulation of English Consonants
    Masayuki Sawashima
    Article type: Article
    1971 Volume 27 Issue 5 Pages 257-
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_257
    JOURNAL FREE ACCESS
    Download PDF (100K)
  • Acoustoelectronics
    Yoshimitsu Kikuchi, Noriyoshi Chubachi
    Article type: Article
    1971 Volume 27 Issue 5 Pages 258-269
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_258
    JOURNAL FREE ACCESS
    Download PDF (1444K)
  • Die Planung der Konzertorgel
    Hiroyuki Mochizuki
    Article type: Article
    1971 Volume 27 Issue 5 Pages 270-273
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_270
    JOURNAL FREE ACCESS
    Download PDF (551K)
  • Digital Filter(II)
    Ken'iti Kido
    Article type: Article
    1971 Volume 27 Issue 5 Pages 274-278
    Published: May 10, 1971
    Released on J-STAGE: June 02, 2017
    DOIhttps://doi.org/10.20697/jasj.27.5_274
    JOURNAL FREE ACCESS
    Download PDF (543K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top