Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Multi-Modal Vibration Control of Truss Structures Using Piezoelectric Actuators

압전작동기를 이용한 트러스 구조물의 다중 모드 진동제어

  • Published : 2000.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Truss structures are widely used in many space structures, such as large antenna systems, space stations, precision segmented telescopes because they are light in weight and amenable in assembly or deployment. But, due to the low damping capacity, they remain excited for a long time once disturbed. These structural vibrations can reduce life of the structures and cause unstable dynamic characteristics. In this research, vibration suppression experiment has carried out with a three-dimensional 15-member truss structure using two piezoelectric actuators. Piezoelectric actuators which consist of stacks of thin piezoelectric material disks are directly inserted to the truss structure collocated with the strain sensors. Each actuator is controlled digitally in decentralized manner, based on local integral and proportional feedback. The optimal positions of the actuators are determined by the modal damping ratio and the control force. Numerical simulation has carried out to determine optimal position of each actuator.

Keywords

References

  1. Charon, W. and Baier, H., 1995, 'Active Mechanical components as a Step Toward Adaptive Structures in Space,' Journal of Intelligent Material Systems and Structures, Vol. 6, pp. 396-402 https://doi.org/10.1177/1045389X9500600311
  2. Kobori, T., 1991, 'Active Vibration Control for Architectural Structure,' Proc. of int'l Symposium on Active control of Sound and Vibration, Tokyo, Japan
  3. Onoda, J. and Haftka, R. T., 1987, 'An Approach to Structure/Control Simultaneous Optimization for Large Flexible Spacecraft,' AIAA Journal, Vol. 25, No. 8, pp. 1133-1138
  4. Bodden, D. S. and Junkins, J. L., 1985, 'Eigenvalue Optimization Algorithms for Structure/Controller Design Iterations,' Journal of Guidance, Control and Dynamics, Vol. 8, pp. 697-706
  5. Carballo, M., Pu, Z. J. and Wu, K. H., 1995, 'Variation of Electric Resistance and the Elastic Modulus of Shape Memory Alloys under Different Loading and Temperature Conditions,' Journal of Intelligent Materials Systems and Structures, Vol. 6, pp. 557-565 https://doi.org/10.1177/1045389X9500600413
  6. Utku, S., Kuo, C. P., Garba, J. A. and Wada, B. K., 1995, 'Shape Control of an Inflatable Reflectors,' Journal of Intelligent Materials Systems and Structures, Vol. 6, pp. 550-556 https://doi.org/10.1177/1045389X9500600412
  7. Paradies, R., Hertwig, M. and Elspass, W. J., 1997, 'Shape Control of an Adaptive Mirror at Different Angels of Inclination,' Journal of Intelligent Materials Systems and Structures, Vol. 7, pp. 203-210 https://doi.org/10.1177/1045389X9600700212
  8. Dougls Brooks, 1993, 'Applicability of Simplified Expression for Design with Electro-Rheological Fluids,' Journal of Intelligent Materials Systems and Structures, Vol. 4, pp. 409-414 https://doi.org/10.1177/1045389X9300400315
  9. Crawley, E. F. and Luis, J. D., 1987, 'Use of Piexoelectric Actuators as Element of Intelligent Structures,' AIAA Journal, Vol. 25, No. 10, pp. 1373-1385
  10. Burke, S. E. and Hubbard, J. E., 1987, 'Active Vibration Control of a Simply Supported Beam Using a Spatially Distributed Actuator,' IEEE Control System Magazine, pp. 25-30 https://doi.org/10.1109/MCS.1987.1105349
  11. Fanson, J. L., Blackwood, C. H. and Chu, C. C., 1989, 'Active Member Control of Precision Structures,' Proceedings of the 30th AIAA /ASME Structures, and Structural Dynamics and Materials Conference
  12. 김문현, 강영규, 박현철, 황운봉, 한경섭, 1996, '압전감지기/자동기를 이용한 복합적층판의 다중모드 진동제어,' 대한기계학회논문집(A) 제20권 제10호, pp. 3173-3185
  13. Arbel, A., 1981, 'Controllability measures and Actuator Placement in Oscillatory Systems,' International Journal of Control, Vol. 33, No. 3, pp. 565-674 https://doi.org/10.1080/00207178108922941
  14. Skelton, R. E. and Chiu, D., 1983, 'Optimal Selection Input/Output in Linear Stochastic Systems,' The Journal of Aeronautical Science, Vol. 31, No. 3, pp. 399-414
  15. Utku, S., Norris, C. H. and Wibur, J. B., 1991, 'Elementary Structural Analysis, 4th edn,' McGraw-Hill
  16. Moon, F. C. and Li, G. X., 1990, 'Experimental Study of Chaotic Vibrations in a Pin-Jointed Space Truss Structure,' AIAA Journal, Vol. 28 No. 5, pp. 915-921
  17. 김태익, 강영규, 박현철, 1995, '반속도 되먹임을 이용한 트러스 구조물의 능동진동 제어,' 제5회 NISA User's Conference