A Wireless Feedback Control System as a Base of Bio-Inspired Structure System to Mitigate Vibration in Structures

Authors: Gwanghee Heo, Geonhyeok Bang, Chunggil Kim, Chinok Lee

Abstract:

This paper attempts to develop a wireless feedback control system as a primary step eventually toward a bio-inspired structure system where inanimate structure behaves like a life form autonomously. It is a standalone wireless control system which is supposed to measure externally caused structural responses, analyze structural state from acquired data, and take its own action on the basis of the analysis with an embedded logic. For an experimental examination of its effectiveness, we applied it on a model of two-span bridge and performed a wireless control test. Experimental tests have been conducted for comparison on both the wireless and the wired system under the conditions of Un-control, Passive-off, Passive-on, and Lyapunov control algorithm. By proving the congruence of the test result of the wireless feedback control system with the wired control system, its control performance was proven to be effective. Besides, it was found to be economical in energy consumption and also autonomous by means of a command algorithm embedded into it, which proves its basic capacity as a bio-inspired system.

Keywords: Structural vibration control, wireless system, MR damper, feedback control, embedded system.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1475040

References:

[1] Flatau, A. NSF Biosensors and Bioactuation Workshop. 2007, Nov. 27-28.
[2] Flatau, A. Recent Advances in Bio-Sensing and Bio-Actuation Concepts, 5th World Conference on Structural Control and Monitoring. 5WCSCM-006. 2010, Keynote 6.
[3] Peckens, C. A.; Lynch, J. P. Utilizing the cochlea as a bio-inspired compressive sensing technique. Smart Materials and Structures. 2013, 22, 1-16, DOI. 10.1088/0964-1726/22/10/105027.
[4] Peckens, C. A.; Lynch, J. P.; Heo, G. Resource-efficient wireless sensor network architecture based on bio-mimicry of the mammalian auditory system. Journal of Intelligent Material System and Structures, 2014, 1-22, DOI.10.1177/1045389X14521877.
[5] Straser, E. G. A modular, wireless damage monitoring system for structures. John A Blume Earthquake Center. Department of Civil and Environmental Engineering. Stanford University: Stanford. CA. 1998, Report no. 128.
[6] Lynch, J. P.; Wang, Y.; Swartz, R. A.; Lu, K. C.; Loh, C.H. Implementation of a Closed-Loop Structural Control System using Wireless Sensor Networks. Structural Control and Health Monitoring. 2008, 15(Issue.4), 518-539, DOI. 10.1002/stc.214.
[7] Kurata, N.; Spencer Jr., B. F.; Ruiz-Sandoval, M. A Study on Building Risk Monitoring Using Wireless Sensor Network MICA-Mote. Ib: First International Conference on Structural Health Monitoring and Intelligent Infrastructure. 2003, 1, 353-357.
[8] Sinozuka, M.; Feng, M. Q.; Chou, P.; Park, C. MEMS-Based Wireless Real-Time Health Monitoring of Bridges. The 3rd International conference on Earthquake Engineering Najing, China, 2004.
[9] Cho, S. J. Structural health monitoring of cable-stayed bridge using wireless smart sensors. Ph.D Dissertation, KAIST, Daejeon, Korea, 2011.
[10] Heo,G.; Lee, W.; Kim, M. Structural Health Monitoring System Employing Smart Sensor Technology Part 1: Development and Performance Test of Smart Sensor. Journal of the Korea Institute for Structural Maintenance Inspection. 2007, 11(2), 134-144.
[11] Heo, G; Lee, W.; Lee, C.; Jeon, J.; Sohn, D. Development of Smart Wireless Measurement System for Monitoring of Bridges. Journal of the Korea Institute for Structural Maintenance Inspection. 2011, 15(2), 170-178, DOI. 10.11112/jksmi.2011.15.2.170.
[12] Kim, K.; Kang, C.; Oh, B.; Lee, Y. A Wireless Sensor Network with Reservation-based MAC Protocol for Bridge Monitoring Systems. Korea Institute of Information Technology Review. 2009, 7(6), 121-127.
[13] Park, J.; Sim, S.; Jung, H.; Spencer, B.F. Development of a Wireless Displacement Measurement System Using Acceleration Responses. Sensors. 2013, 13, 8377–8392, DOI. 10.3390/s130708377.
[14] Kurata, M.; Kim, J.; Lynch, J.P.; van der Linden, G.W.; Sedarat, H.; Thometz, E.; Hipley, P.; Sheng, L. Internet-Enabled Wireless Structural Monitoring Systems: Development and Permanent Deployment at the New Carquinez Suspension Bridge. J. Struct. Eng. 2013, 139, 1688–1702.
[15] Lynch, J. P.; Partridge, A.; Law, K. H.; Kenny, T.W. Design of a Piezoresistive MEMS-Based Accelerometer for Integration with a Wireless Sensing Unit for Structural Monitoring. Journal of Aerospace Engineering. 2003, 16(Issue.3), 108-114, DOI. 10.1061/(ASCE)0893-1321(2003)16:3(108).
[16] Heo, G.; Kim, C. Designing a unified wireless system for vibration control. Soil Dynamics and Earthquake Engineering. 2012, 38(2012). 72-80, DOI. 10.1016/j.soildyn.2012.01.012.
[17] National Instruments. Real-Time FIFO Frequently Asked Questions, website. 2011.
[18] Leitmann, G. Semiactive control for vibration attenuation. Journal of Intelligent Material Systems and Structures. 1994, 5, 841-846, DOI. 10.1177/1045389X9400500616.