Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Shinya Kijimoto Last modified date:2018.06.07

Professor / Dynamics of Mechanical Systems / Department of Mechanical Engineering / Faculty of Engineering


Presentations
1. Shotaro Hisano, Satoshi Ishikawa, Shinya Kijimoto, Yosuke Koba, Model-based active noise control for two-dimensional closed space by concentrated mass model, 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet, INTER-NOISE 2017, 2017.01, Several adaptive feedforward control methods have been proposed in previous research on active noise control. In those methods, noise control is achieved by adding in a reverse-phase control sound of the same amplitude to noise near an error microphone. Because this method is aimed at controlling only noise near the error microphone, the control area is inherently narrow. Here, we propose an alternative method of noise control for an entire closed space. The proposed method is based on state feedback control and modeling of the acoustic space by the concentrated-mass model. The acoustic space is modeled as masses, connecting springs, connecting dampers, and base support dampers. Further, a loudspeaker as control source is also modeled as a mass-spring-damper system. We previously reported a method for simple one-dimensional acoustic space control. In this paper, we show the design of a control system for two-dimensional acoustic spaces. The acoustic space and loudspeakers are modeled in a concentrated-mass model, and the state feedback control system is realized as a Kalman filter with pole placement. The number of degrees of freedom is reduced by using modal analysis, which reduces the computation time of the controller. Experiments and numerical simulation of the coupled system were conducted to confirm the validity of the analysis model. Noise in the acoustic space was experimentally controlled, with the finding that noise in the entire acoustic space was reduced around the resonance frequencies. Furthermore, the theoretically the limit of the control effect are considered within the proposed system..
2. WANG Xun, SATAKE Takayuki, KOBA Yosuke, Satoshi ISHIKAWA, KIJIMOTO Shinya, Active reduction of the two-way diffraction from a noise barrier by using feedforward control, Inter-Noise 2016, 2016.08.
3. KIJIMOTO Shinya, WANG Xun, Satoshi ISHIKAWA, KOBA Yosuke, Hybrid active noise barrier with sound masking (Experiment for verifying the noise attenuation performance in an office room and evaluation of maskers by listening experiments), Inter-Noise 2015, 2015.08.
4. KIJIMOTO Shinya, WANG Xun, Satoshi ISHIKAWA, KOBA Yosuke, Development of indoor hybrid active noise barrier, 22nd International Congress on Sound and Vibration (ICSV22), 2015.07.
5. HISANO Shotaro, ISHIKAWA Satoshi, KIJIMOTO Shinya, KOBA Yosuke, Active noise control based on state feedback by a concentrated mass model, Inter Noise 2014, 2014.11.
6. ISHIKAWA Satoshi, KIJIMOTO Shinya, OWAKI Ryoma, MATSUO Ataru, Coupled analysis of two-dimensional acoustic and membrane vibration by concentrated mass model, Inter Noise 2014, 2014.11.
7. WANG Xun, KOBA Yosuke, ISHIKAWA Satoshi, KIJIMOTO Shinya, Hybrid active noise barrier with sound masking, Inter Noise 2014, 2014.11.
8. SUGIKI Shohei, ISHIKAWA Satoshi, KIJIMOTO Shinya, KOBA Yosuke, Simulation of Speech Production by Concentrated Mass Model, Inter Noise 2013, 2013.09.
9. ISHIKAWA Satoshi, KIJIMOTO Shinya, KOBA Yosuke, OWAKI Ryoma, MORI Yuki, Two-dimensional Acoustic Analysis by Concentrated Mass Model, Inter Noise 2013, 2013.09.
10. Kazuya YOKOTA, Shinya Kijimoto, ISHIKAWA Satoshi, Yosuke KOBA, Active Noise Control with Changing Adaptive Behavior Algorithm, The 3rd Japan-Korea Joint Symposium on Dynamics and Control, 2013.08.
11. TAKAHASHI Akihiro, KIJIMOTO SHINYA, ISHIKAWA Satoshi, KOBA Yosuke, Sound Masking Using Active Noise Control, The 3rd Japan-Korea Joint Symposium on Dynamics and Control, 2013.08.
12. TANIGUCHI Tishiro, KOBA Yosuke, ISHIKAWA Satoshi, KIJIMOTO Shinya, Active Noise Control Considering Moving Evaluation Point in Actual Sound Field, The 3rd Japan-Korea Joint Symposium on Dynamics and Control, 2013.08.
13. Yasuhiro Shimada, ISHIKAWA Satoshi, Shinya Kijimoto, DEVELOPMENT IN MEASUREMENT METHOD AND ANALYSIS MODEL OF LIVING BODY, Mjiit-Juc Joint Symposium, 2012.11.
14. Yoshiko Ohno, KOBA Yosuke, ISHIKAWA Satoshi, Shinya Kijimoto, Active Noise Control for a Moving Evaluation Point Using Stepsize Vector and Secondary Path Interpolation, Mjiit-Juc Joint Symposium, 2012.11.