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 Results 1 - 17 of 17  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
Kyoto Doshisha Univ. [Poster Presentation] Comparison of propagation phenomenon of ultrasound and secondary wave using numerical analysis of nonlinear acoustics -- sound wave diffracting to occlusion area --
Motoharu Oyama, Kan Okubo (Tokyo Metropolitan Univ.) US2019-85
Feasibility of acoustic sensing for occlusion areas combining super-directivity speaker and pulse compression technique ... [more] US2019-85
Osaka   [Poster Presentation] Time Domain Numerical Analysis of Acoustical Doppler Effect Using CIP-MOC Method
Takuro Sonobe, Kan OKubo, Norio Tagawa (Tokyo Met. Univ.), Takao Tsuchiya (Doshisha Univ.) US2017-97
The constrained interpolation profile (CIP) method is
the calculation method to incorporate the spatial differential v... [more]
SP, SIP, EA 2017-03-01
Okinawa Okinawa Industry Support Center [Poster Presentation] Application and Evaluation of CIP Methods to Acoustic Wave Propagation Analysis with Multi-dimensional Advection
Akihiro Fukuda, Kan Okubo (Tokyo Met. Univ.), Takuya Oshima (Niigata Univ.), Takao Tsuchiya (Doshisha Univ.), Masashi Kanamori (JAXA) EA2016-90 SIP2016-145 SP2016-85
The constrained interpolation profile (CIP) method is a calculation method with less numerical dispersion error, which u... [more] EA2016-90 SIP2016-145 SP2016-85
EA, SP, SIP 2016-03-29
Oita Beppu International Convention Center B-ConPlaza [Poster Presentation] Numerical Analysis of Acoustic Field Propagation with Advection Using Method of Characteristics
Akihiro Fukuda, Kan Okubo (Tokyo Met. Univ.), Takuya Oshima (Niigata Univ.), Takao Tsuchiya (Doshisha Univ.), Masashi Kanamori (JAXA) EA2015-107 SIP2015-156 SP2015-135
Method of characteristics (MOC) is the calculation method which transforms governing equations of acoustic field into ad... [more] EA2015-107 SIP2015-156 SP2015-135
US 2015-04-20
Tokyo The University of Electro-Communications Surface Streaming Analysis f Ultrasonically Levitated Droplet with Moving Particle Semi-implicit and Distributed Point Source Method
Yuji Wada, Kohei Yuge (Seikei Univ.), Ryohei Nakamura, Hiroki Tanaka, Kentaro Nakamura (Tokyo Tech) US2015-4
Ultrasonic droplet levitation has recently been drawing attention as a way of non-contact transportation.
Many experime... [more]
US 2014-08-25
Tokyo Tokyo Institute of Technology, Ookayama Campus Refraction index of phononic crystal lens influenced by structure parameter and analysis of sound field focusing by phononic crystal lens
Takenobu Tsuchiya, Kazuma Shimizu, Tetsuo Anada, Nobuyuki Endoh (Kanagawa Univ.), Sayuri Matsumoto (PARI), Kazuyoshi Mori (NDA) US2014-37
Phononic crystal structure with a negative refractive index is able to produce a planar acoustic lens having high resolu... [more] US2014-37
US 2014-06-23
Tokyo Tokyo Metropolitan Univ. Numerical Simulation of Acoustic Field Using CIP-MOC Method with Non-uniform Grids
Yuta Matsumura, Kan Okubo (Tokyo Met.Univ.), Takao Tsuchiya (Doshisha Univ.), Norio Tagawa (Tokyo Met.Univ.), Takashi Ishizuka (Shimizu) US2014-17
In recent years, time domain-numerical analysis for sound wave propagation has been investigated widely as a result of a... [more] US2014-17
US 2014-04-22
Tokyo The University of Electro-Communications Three Dimensional Shape Analysis of Ultrasonically Levitated Droplet with Moving Particle Semi-implicit and Distributed Point Source Method
Yuji Wada, Kohei Yuge (Seikei Univ.), Ryohei Nakamura, Hiroki Tanaka, Kentaro Nakamura (Tokyo Inst. of Tech.) US2014-4
Ultrasonic droplet levitation has recently been drawing attention as a way of non-contact transportation. Many experimen... [more] US2014-4
US 2014-02-21
Tokyo Chofu Aerospace Center, Aerodrome Branch, JAXA Comparative Study of Perfectly Matched Layer for Acoustic Simulation Using Method of Characteristics
Junpei Adachi, Kan Okubo (Tokyo Metropolitan Univ.), Takashi Ishizuka (Shimizu) US2013-99
In the multi-dimensional MOC sound wave analysis, automatically absorbing boundary doesn't have efficient absorbing perf... [more] US2013-99
US 2011-12-22
Kanagawa Suzukakedai Campus, Tokyo Institute of Technology Simulation of acoustic streaming in an ultrasonic air pump using GPU array
Yuji Wada, Daisuke Koyama, Kentaro Nakamura (Tokyo Tech.) US2011-77
Direct finite difference fluid simulation of acoustic streaming on the fine-meshed three-dimensional model by graphics p... [more] US2011-77
US 2011-02-21
Ibaraki   Examination on High-speed Visualization of Acoustic Numerical Analysis Using CUDA and OpenGL -- Proposal of PMCC(Permeable Multi Cross-section Contours) --
Naoki Kawada, Kan Okubo, Norio Tagawa (Tokyo Met. Univ.), Takao Tsuchiya (Doshisha Univ.), Takashi Ishizuka (Shimizu Corporation) US2010-114
In this study, we made a examination on acoustic field numerical analysis using GPU(Graphics Processing Unit) and report... [more] US2010-114
EA 2010-12-10
Ibaraki Univ. of Tsukuba Wave front reproduction using the spatial covariance matrices method
Hiroki Hagiwara (Kogakuin Univ.), Yoshinori Takahashi (Tokyo Metro. College of Industrial Tech./Kogakuin Univ.), Kazunori Miyoshi (Kogakuin Univ.) EA2010-97
This paper describes a sound-field reproduction method called a Co-Variance Method (CVM) that reproduces a spatial covar... [more] EA2010-97
US 2010-09-29
Miyagi Tohoku Univ. The Relationship between Calculation Accuracy and Handling of Derivative Propagation in the GCIP Method -- Acoustic simulation Using the GCIP(L,M:l,m) Method --
Kan Okubo, Naoki Kawada, Norio Tagawa (Tokyo Met. Univ.), Takao Tsuchiya (Doshisha Univ.) US2010-48
This study addresses the issue of handling of derivative propagation in the GCIP method. We propose generalized CIP (L,M... [more] US2010-48
US 2010-09-30
Miyagi Tohoku Univ. Vibration Analysis of Single-element High Intensity Focused Ultrasound Transducer -- Effects of Leaky Lamb Waves --
Kenji Otsu, Yasuhiro Kaneshima, Yuji Komura, Shin Yoshizawa, Shin-ichiro Umemura (Tohoku Univ.) US2010-68
In a spherical single-element piezoceramic transducer for HIFU (High Intensity Focused Ultrasound) treatment, the unwant... [more] US2010-68
EA 2007-10-19
Nagano Shinshu University Faculty of Engineering Two-Dimensional Numerical Simulation for sound wave propagation using the Type-M CIP method considering handling of the boundary surface
Kan Okubo, Masahito Konno (Tokyo Met. Univ.), Takao Tsuchiya (Doshisha Univ.), Sungqwan Oh, Nobunao Takeuchi (Akita Prefectural Univ.), Norio Tagawa (Tokyo Met. Univ.) EA2007-67
The analysis of acoustic wave propagation using the constrained interpolation profile (CIP) method requires the treatmen... [more] EA2007-67
- 2007-01-26
Kyoto Doshisha Univ. Analysis of Acoustic Field using the Type-C CIP Method
Sungqwan Oh, Kan Okubo (Akita Pref. Univ.), Takao Tsuchiya (Doshisha Univ.), Nobunao Takeuchi (Akita Pref. Univ.)
The authors have investigated the acoustic field analysis using the Constrained Interpolation Profile (CIP) Method recen... [more]
RECONF 2006-05-19
Miyagi TOHOKU UNIVERSITY Discussion on Building of Acoustic Field Simulation System with FPGA
Eiko Sugawara, Yasushi Inoguchi (JAIST), Takao Tsuchiya (Doshisha Univ.), Yasushi Hibino (JAIST)
Sound field simulations are used widely in a field of acoustic design.
As performance of a computer improved, numerical... [more]
 Results 1 - 17 of 17  /   
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