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Ida, Masato
Nihon Ryutai Rikigakkai Nenkai 2005 Koen Rombunshu (CD-ROM), 6 Pages, 2005/09
The resonance frequencies and oscillation phases of three acoustically coupled bubbles in a fluid are examined to show that avoided crossings can appear in a few-bubble system. Using a simple coupled oscillator model, we show that if at least three bubbles exist, it is possible for their resonance frequencies as functions of the separation distances between the bubbles to experience an avoided crossing. Furthermore, by focusing our attention on the oscillation phases and the transition frequencies [Ida, Phys. Lett. A 297, 210 (2002); J. Phys. Soc. Jpn. 71, 1214 (2002)] of the coupled bubbles, we show that a distinct state exchange takes place between the bubbles at a point in the avoided crossing region, where a resonance frequency of the triple-bubble system crosses with a transition frequency not corresponding to the resonance frequencies.
Ida, Masato
Physical Review E, 72(3), p.036306_1 - 036306_7, 2005/09
Times Cited Count：14 Percentile：53.94(Physics, Fluids & Plasmas)The resonance frequencies and oscillation phases of three acoustically coupled bubbles are examined to show that avoided crossings can appear in a multibubble system. Via a simple coupled oscillator model, we show that if at least three bubbles exist, it is possible for their resonance frequencies to experience an avoided crossing. Furthermore, by focusing our attention on the oscillation phases and based on analysis of the transition frequencies [Ida, Phys. Lett. A 297, 210 (2002); Ida, J. Phys. Soc. Jpn. 71, 1214 (2002)] of the coupled bubbles, we show that a distinct state exchange takes place between the bubbles at a point in the avoided crossing region, where a resonance frequency of the triple-bubble system crosses with a transition frequency.
Ida, Masato
Physics of Fluids, 17(9), p.097107_1 - 097107_13, 2005/09
Times Cited Count：16 Percentile：52.73(Mechanics)The transition frequencies of multibubble systems in a sound field are reexamined theoretically to confirm their existence and further clarify their physical properties. Via a forced coupled oscillator model, the following results are obtained: (1) further details of the characteristics of the transition frequencies, (2) the theoretical determination of the threshold distances for the appearance of the sub-transition frequencies, (3) a simple understanding of the sign reversal of the interaction force, and (4) the clarification of several similarities and differences among the natural, resonance, and transition frequencies in double-bubble cases. The present effort enforces our claim that transition frequencies causing no resonance response exist in multibubble systems and thoroughly clarifies the physical effects of the transition frequencies and their roles in the sign reversal of the interaction force.
Maebara, Sunao; Morishita, Takatoshi; Moriyama, Shinichi; Sugimoto, Masayoshi; Imai, Tsuyoshi; Takeuchi, Hiroshi
Proceedings of 28th Linear Accelerator Meeting in Japan, P. 378, 2003/08
no abstracts in English
Hori, Toshihiko*; Ito, Takashi; Yamazaki, Masayoshi*; Chishiro, Etsuji; Hasegawa, Kazuo
Proceedings of 28th Linear Accelerator Meeting in Japan, p.285 - 287, 2003/07
no abstracts in English
Chishiro, Etsuji; Tsukishima, Chihiro*; Ouchi, Nobuo; Mukugi, Ken*; Hasegawa, Kazuo; Mizumoto, Motoharu
KEK Proceedings 2000-23, p.34 - 38, 2001/02
no abstracts in English
Chishiro, Etsuji*; Tsukishima, Chihiro*; Ouchi, Nobuo; Mukugi, Ken*; Mizumoto, Motoharu
KEK Proceedings 99-25, p.41 - 44, 2000/02
no abstracts in English
Wang, Y.
PNC TN9410 93-203, 57 Pages, 1993/03
The characteristics of TWRR are analysed in detail. They include effects of therefltion, coupling coefficient and directivity. The characteristics of TWRR with anaccerator section are studied.They include analyses of constant impedance structure, witfixed coupling and optimal coupling, and on/off beam loading. Thecharacteristics of nstant gradient structure are also analysed. Q values of TWRR and TWRR with an accelator section are calculated. TWRRs with RF window and with an accelerator section areested in low power and high power. Some phenomena appeared are mentioned and analysedhe stability of TWRR with an accelerator section is discussed.The results of tests sw that the measured parameters of TWRR with an accelerator section are in very good reement with the calculated values.
Fukuda, Mitsuhiro; Arakawa, Kazuo; Nakamura, Yoshiteru; Yokota, Wataru; Kamiya, Tomihiro; Nara, Takayuki; Agematsu, Takashi; Okumura, Susumu; Ishibori, Ikuo; Tanaka, Ryuichi; et al.
Proc. of the 8th Symp. on Accelerator Science and Technology, p.138 - 140, 1991/00
no abstracts in English
JAERI-M 9447, 57 Pages, 1981/04
no abstracts in English
