Velocity Feedback with a Non-Collocated Pair of Sensor and Actuator for Tip Vibration Suppression of a Beam

摘要:

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This paper presents a theoretical and experimental study of a non-collocated pair of piezopolymer PVDF sensor and piezoceramic PZT actuator, which are bonded on a cantilever beam, in order to suppress unwanted vibration at the tip of the beam. The PZT actuator patch was bonded near the clamped part and the PVDF sensor, which was triangularly shaped, was bonded on the other part of the beam. This is because the triangular PVDF sensor is known that it can detect the tip velocity of a cantilever beam. Because the arrangement of the sensor and actuator pair is not collocated and overlapped each other, the pair can avoid so called "in-plane coupling", which can be found at a matched piezoelectric sensor and actuator pair and restricts the stability and performance of direct velocity feedback control. The test beam is made of aluminum with the dimension of 200 × 20 × 2 mm. Before control, the sensor-actuator frequency response function is confirmed to have a nice phase response without accumulation in a reasonable frequency range of up to 5000 Hz. The feedback control attenuates the magnitude of the first two resonances in the error spectrum of about 6 -7 dB.

信息:

期刊:

编辑:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

页数:

200-203

引用:

Y. S. Lee and K. H. Shin, "Velocity Feedback with a Non-Collocated Pair of Sensor and Actuator for Tip Vibration Suppression of a Beam", Key Engineering Materials, Vols. 321-323, pp. 200-203, 2006

上线时间:

October 2006

输出:

价格:

$38.00

[1] C. R. Fuller, S. J. Elliott and P.A. Nelson 1996 Active Control of Vibration. Academic Press.

[2] M. J. Balas, 1979, Direct velocity feedback control of large space structures, J. Guidan. Cont., 2(3), 252-253.

[3] Y. -S. Lee, P Gardonio and S J Elliott, Volume velocity vibration control of a smart panel using a quadratically shaped piezoelectric actuator and a multiple accelerometers arrangement, 2002, Smart Materials and Structures, 11(6), 863-873.

DOI: https://doi.org/10.1088/0964-1726/11/6/306

[4] Y. -S. Lee, P. Gardonio and S. J. Elliott, Coupling analysis of a matched piezoelectric sensor and actuator pair for vibration control of a smart beam, 2002, Journal of Acoustical Society of America, 111(6), 2715-2726.

DOI: https://doi.org/10.1121/1.1476921

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