Enhancing active vibration control performances in a smart structure by using Fiber Bragg Gratings sensors
Proceedings of SPIE - The International Society for Optical Engineering, ISSN: 0277-786X, Vol: 8345
2012
- 29Citations
- 5Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Conference Paper Description
Fiber optic strain sensors, such as Fiber Bragg Gratings (FBG), have a great potential in the use in smart structures thanks to their small transversal size and the possibility to make an array of many sensors. They can be embedded in carbon fiber structures and their effect on the structure is nearly negligible. On the other hand, some critical aspects should be evaluated, such as higher cost and lower SNR respect to traditional technologies. In this work a simple carbon fiber structure has been developed, composed of a thin cantilever with 14 longitudinal FBG sensors and 3 piezoelectric actuators (PZT). A dynamic 1 kHz swept-laser interrogator was used to gather the FBG data: the output is a digital signal and the time delay introduced has been measured. This is a critical point that restricts the highest controllable frequency: our results show that the limit is at about 50 Hz. A control system has been developed and many control strategies have been evaluated to suppress vibration, from the simplest single-sensor to single-actuator strategy, up to modal control. The SNR of the input data has been found to be critical. The use of FBG sensors allows improving the performance of the control because they give a large number of measurements regarding the state of deformation of the whole structure. Modal control was found to have the best results thanks to its best use of all the sensors data. © 2012 SPIE.
Bibliographic Details
SPIE-Intl Soc Optical Eng
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know