Journal of the Korean Society of Marine Engineering, Vol. 35, No. 3, pp. 309～316, 2011(ISSN 1226-9549) Journal of the Korean Society of Marine Engineering, Vol. 35, No. 3, 2011. 5 / 333 9 †Corresponding author(Division of Mechanical and Energy System Engineering, Korea Maritime University, E-mail:ssyou@hhu.ac.kr) 1 Mechanical Engineering Korea Maritime University 2 Associate Ship & Oscean R&D Institute Daewoo Shipbuilding & Marine Engineering CO.,LTD. 3 Electric Motor Research Center Korea Electrotechnology Research Institude 4 Graduate School, Division of Mechanical Engineering, Korea Maritime University Active Vibration Control of a Plate Using TMS320C6713DSK Hyeung-Sik Choi 1 ⋅Sam-Sang You†⋅Jae-Gwan Her 2 ⋅Hae-Yong Seo 3 ⋅Ngoc-Huy Tran 4 (Received September 14, 2010; Revised December 1, 2010; Accepted January 14, 2011) Abstract：This paper deals with the experimental study of the vibration suppression of the smart structures. First, a new high-speed active control system is presented using the DSP320C6713 microprocessor. A peripheral system developed is composed of a data acquisition system, A/D and D/A converters, piezoelectric (PZT) actuator/sensors, and drivers using PA 95 for fast data processing. Next, the processing time of the peripheral device is tested and the corresponding test results are provided. Since fast data processing is very important in the active vibration control of the structures, achieving the fast loop times of the control system is focused. The control algorithm using PPF in addition to FIR filter is implemented. Finally, numerous experiments were carried out on the aluminum plate to validate the superior performance of the vibration control system at different control loop times. Key words：Active vibration control, DSP, PZT actuator/sensor, PPF control 1. Introduction Recently, there has been widespread interest in the active vibration control system. Owing to the performance of the improved piezoelectric devices, a great deal of attention has been paid on the research and development of high-speed active control system integrated with PZT sensors/ actuators and controllers. There have been a large number of theoretical papers for vibration control of the cantilever beam and thin-plate beam. However, few papers have considered the active control system with fast processing microprocessors, experimentally. A control system using VMEbus processor was presented for vibration control of the thin-plate [1]. Also, there has been an experimental result on real-time control for a rectangular steel plate incorporated with ADSP21062 EZKI and EZ_ANC II digital-signal-processing (DSP) [2]. In addition, Chu et. al. had designed a simulator using real-time active controller with TMS320C40 DSP board [3]. The active controller has been proposed for cylinder shell structures, integrated with PZT driver and TMS320C30 DSP using PPF controller and filtered-x LMS controller [4]. Further, the active controller for steel plate with 340x300x0.5 [mm 3 ] in dimension has utilized DSP320C30 DSP featuring multi- adaptive feed-forward control inputs [5]. A DSP controller and selected control algorithms are implemented to a complex autoparametric ‘‘L-shape” beam system to compare numerical and experimental results. Detailed analysis for the NSC system is carried out [6]. A novel distributed sensing and actuation approach for actively 309