Vibration suppression of a spacecraft flexible appendage using smart material

Meyer, John L.; Harrington, William; Agrawal, Brij N.; Song, Gangbing

doi:10.1088/0964-1726/7/1/011

Cited by 56 publications

(38 citation statements)

References 4 publications

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“…Piezoceramics with such attractive features as low cost, small size, wide bandwidth, and sensing and actuating functions have been widely researched in real-time active vibration control [6][7][8], stress-wave based communication [9][10][11], and structural health monitoring [12][13][14][15][16]. Another attractive feature of a piezoceramic transducer is the coupling between its electric impedance and the host structure's mechanical impedance.…”

Section: Introductionmentioning

confidence: 99%

A Smart Washer for Bolt Looseness Monitoring Based on Piezoelectric Active Sensing Method

et al. 2016

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Piezoceramic based active sensing methods have been researched to monitor preload on bolt connections. However, there is a saturation problem involved with this type of method. The transmitted energy is sometimes saturated before the maximum preload which is due to it coming into contact with flat surfaces. When it comes to flat contact surfaces, the true contact area will easily saturate with the preload. The design of a new type of bolt looseness monitoring sensor, a smart washer, is to mitigate the saturation problem. The smart washer is composed of two annular disks with contact surfaces that are machined into convex and concave respectively, to eliminate the complete flat contact surfaces and to reduce the saturation effect. One piezoelectric patch is bonded on the non-contact surface of each annular disk. These two mating annular disks form a smart washer. One of the two piezoelectric patches serves as an actuator to generate an ultrasonic wave that propagates through the contact surface; the other one serves as a sensor to detect the propagated waves. The wave energy propagated through the contact surface is proportional to the true contact area which is determined by the bolt preload. The time reversal method is used to extract the peak of the focused signal as the index of the transmission wave energy; then, the relationship between the signal peak and bolt preload is obtained. Experimental results show that the focused signal peak value changes with the bolt preload and presents an approximate linear relationship when the saturation problem is experienced. The proposed smart washer can monitor the full range of the rated preload.

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Section: Introductionmentioning

confidence: 99%

A Smart Washer for Bolt Looseness Monitoring Based on Piezoelectric Active Sensing Method

et al. 2016

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“…Piezoelectric materials have been applied in structural vibration control as well as in structural acoustics because of their fast response, large force output, and because they generate no magnetic field in the conversion of electrical energy into mechanical motion. [8][9][10][11][12] Positive position feedback (PPF) was devised by Goh and Caughey 13 and has several distinguished advantages. 14 It has proven to be a solid vibration control strategy for flexible systems with smart materials, particularly with the piezoelectric actuator.…”

Section: Introductionmentioning

confidence: 99%

“…14 It has proven to be a solid vibration control strategy for flexible systems with smart materials, particularly with the piezoelectric actuator. [14][15][16][17] PPF is essentially a second-order filter that is used to apply high frequency gain stabilization by improving the frequency rolloff of the system. 18 Alternatively, PPF works by using a secondorder system which is forced by the position response of the structure.…”

Section: Introductionmentioning

confidence: 99%

Vibration Control for a Cantilever Beam with an Eccentric Tip Mass Using a Piezoelectric Actuator and Sensor

Yang¹

2017

IJAV

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A novel model using the transfer matrix method for multibody system (TMMMS) is put forward to describe the dynamic characteristics of a cantilever beam that has a concentrated mass at its tip under axial excitations. The theoretical analysis and numerical results demonstrate that this model has some advantages, such as for a small matrix and a higher computational speed. Based on this model a control system, which is composed of a LQG controller, a piezoelectric actuator, and a sensor for the cantilever beam is proposed, theoretically analyzed, and experimentally verified. The experimental results show that the proposed controller with the piezoelectric actuator can effectively reduce the vibration of the cantilever beam with an eccentric tip mass. The piezoelectric sensor can measure vibration responses with high-accuracy. Therefore, this new model gives a broad range of possibilities for model-based controller design and implementation.

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“…For the field of vibration control using piezoelectric materials, Meyer et al [3] studied the effect of PPF control and LQG control on flexible structures using piezoelectric materials. Then, Song et al [4] proved that PPF control is robust to frequency variations and so it is an effective method for vibration suppression.…”

Section: Introductionmentioning

confidence: 99%

Positive Position Feedback Active Vibration Control of a Smart Cantilever Beam Using ANSYS

Badawy¹,

Masry²

2015

Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering

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Vibration suppression of a spacecraft flexible appendage using smart material

Cited by 56 publications

References 4 publications

A Smart Washer for Bolt Looseness Monitoring Based on Piezoelectric Active Sensing Method

A Smart Washer for Bolt Looseness Monitoring Based on Piezoelectric Active Sensing Method

Vibration Control for a Cantilever Beam with an Eccentric Tip Mass Using a Piezoelectric Actuator and Sensor

Positive Position Feedback Active Vibration Control of a Smart Cantilever Beam Using ANSYS

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