| Autor: |
V. Shankar, B. V. Nagaraja, J. Harikrishnan, P. Shashikala, R. Balasubramaniam |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Volume 6B: 18th Biennial Conference on Mechanical Vibration and Noise. |
| DOI: |
10.1115/detc2001/vib-21538 |
| Popis: |
Adaptive feed forward control of structure based on ‘filtered -x’ LMS algorithm has been brought out for the active control of vibration in a typical CFRP beam structure. Initially the conventional filtered-x LMS control configuration and offline system identification method using DSP is discussed. Also the on-line system identification and control by additive random noise technique has been brought out. FIR filters are used for both system identification and control. Recent advances in electronics, high-speed digital signal processors have made active systems realizable, effective and inexpensive. Hence the active control method has been used to investigate a typical composite CFRP beam structure bonded externally with PZT actuators/sensors. At present vibration reduction of the order of 3db has been achieved. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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