한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제12권9호
  • /
  • Pages.694-701
  • /
  • 2002
  • /
  • 1598-2785(pISSN)
  • /
  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지
DOI QR코드

DOI QR Code

평판에서 방사되는 소음의 능동구조소음제어를 위한 변환기의 위치결정

The Determination of Transducer Locations for Active Structural Acoustic Control of the Radiated Sound from Vibrating Plate

  • 김흥섭 (인제대학교 기계자동차공학부) ;
  • 홍진석 (한양대학교 대학원 정밀공학과) ;
  • 이충휘 (한양대학교 대학원 자동차공학과) ;
  • 오재응 (한양대학교 기계공학부)
  • 발행 : 2002.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, through the study on locations of structural transducers for active control of the radiated sound from the vibrating plate, the active structural acoustic control (ASAC) system is proposed. And, for the evaluation of the proposed location, the experiment of the active structural acoustic control is implemented using the multi-channel filtered-x LMS algorithm and an additional filter (Acoustic Prediction Filter) to estimate the radiated sound using the acceleration signals of the plate. The structural transducers are piezoceramic actuator (PZT) and accelerometer. PZT is used as an actuator to reduce the vibration and the radiated sound. To maximize the control performance, each PZT actuator is located at the position that has the largest control sensitivity of the plate bending moment in the direction of x and y coordinates and the optimal PZT location is validated experimentally. Also, to find the acoustic prediction filter accurately, two accelerometers are located at the positions that have the largest radiation efficiencies of the plate, and the proposed locations are validated by simulation using the Rayleigh integral. The multi-channel filtered-x LMS algorithm is introduced to control a complex 2-D structural vibration mode. Finding the locations of structural transducers for active structural acoustic control of the radiated sound, the active structural acoustic control (ASAC) system can be presented and validated by experiments using a real time control system.

키워드

참고문헌

  1. Fuller, C.R., 1991, "Experiments on Active Control of Sound Radiation From a Panel Using a Piezoceramic Actuator", Journal of Sound and Vibration, Vol 150, No. 2, pp. 179-190. https://doi.org/10.1016/0022-460X(91)90614-P
  2. 오재응, 김홍섭, 손동구, 1996, "능동배기소음제어용 능동형 머플러의 개발 동향", 한국소음진동공학회논문집, 제 5 권, 제 4 호, pp. 468-472.
  3. 강영규, 구근회, 박현철, 2001, "압전 세라믹을 이용한 지능복합적층판의 강제진동의 능동제어", 한국소음진동공학회논문집, 제 11 권, 제 6 호, pp. 193-199.
  4. Kim, H. S., Hong, J. S., and Oh, J. E., 1998, "Active Noise Control with the Active Muffler in Automotive Exhaust Systems", JSME International, Series C, Vol. 41, No. 2, pp. 178-183.
  5. Clark R. L. and Fuller, C. R., 1992, "Experiments on Active Control of Structurally Radiated Sound Using Multiple Piezoceramic Actuators" J. Acoust. Soc. Am., 97(6), pp. 3313-3320.
  6. Clark R. L. and Fuller C. R., 1991, "Control of Sound Radiation with Adaptive Structures", J. Intelligent Mater. Systems Structures 2(3), pp. 431-452. https://doi.org/10.1177/1045389X9100200309
  7. Fuller, C. R., Hansen, C. H. and Snyder, S. D., 1989, "Active Control of Structurally Radiated Noise Using Piezo-ceramic Actuators", Inter-Noise 89, pp. 509-511.
  8. Tzou, H. S., 1993, "A New Distributed Sensor and Actuator Theory for Intelligent Shells", Journal of Sound and Vibration, Vol. 53, No. 2, pp. 335-349.
  9. Park, S. H., 1998, "Exterior Radiated Noise Reduction of Plate with Multi-channel Active Control Algorithm", Thesis of Hanyang University.
  10. Wallace, 1972, "Radiation Resistance of a Rectangular Panel", Journal of the Acoustical Society of America, No. 51, pp. 946-952.
  11. Kim, H. S., Seo, D. W., Kim, S. H. Oh, J. E., 2000, "Application of Wave-number Sensing Technique for the Prediction of Radiated Sound in the Structural Acoustic System", JSME International Journal., Series C, Vol. 43, No. 1, pp. 11-18, (2000.3) https://doi.org/10.1299/jsmec.43.11
  12. Kuo, S. M., Morgan, D. R., 1996, Active Noise Control Systems, John Wiley & Sons, Inc..