Power Requirements for Active Control of Floor Vibrations

  • M. J. HudsonEmail author
  • P. Reynolds
  • D. S. Nyawako
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


Recent research has made significant developments towards improved Active Vibration Control (AVC) technology for the mitigation of annoying vibrations in floor structures. However, there are very few examples of permanent AVC installations in floor structures; this is in part due to the requirement of a continuous power supply and the ensuing electricity costs. This paper investigates potential improvements to AVC from the perspective of the choice of control algorithm. Firstly, the use of model-based controllers as opposed to the direct output feedback controllers that have been used in most prior research effort is considered. For a model-based (MB) controller, because the controller can be designed to target modes within a specific frequency band of interest, it is possible that control effort is used more effectively for a given reduction in response. Secondly, the potential benefits of using a switching-off rule to reduce the actuator effort during periods of low structural response is investigated. Future actuators and amplifiers could incorporate a switching-off rule similar to this in order to minimise the overhead costs associated with running the amplifier. The changes in potential electricity consumption for the previously declared control laws are experimentally determined through direct measurement of the power drawn by the actuator. The results from these analyses are compared and conclusions drawn.


Active vibration control power experimental 



The authors would like to acknowledge the financial support given by the UK Engineering and Physical Sciences Research Council via Industrial CASE Award with WSP Buildings (Voucher Number 08002020), the Responsive Mode Grant (Ref. EP/H009825/1), Platform Grant (Ref. EP/G061130/1) and Leadership Fellowship Grant (Ref. EP/J004081/1).


  1. 1.
    Hanagan LM (1994) Active control of floor vibrations. Phd thesis, Polytechnic Institute and State University, VirginiaGoogle Scholar
  2. 2.
    Nyawako D (2009) An active control approach for mitigation of human-induced vibrations in floors. Phd thesis, The University of Sheffield, Sheffield, UKGoogle Scholar
  3. 3.
    Díaz IM, Reynolds P (2010) Eng Struct 32(1):163–173CrossRefGoogle Scholar
  4. 4.
    Díaz IM, Reynolds P (2009) Smart materials and structures, vol 18, p 125024, Porto, IOP Publishing, Bristol, UKGoogle Scholar
  5. 5.
    Hanagan LM, Murray TM (1998) AISC Eng J 35(4):123–127Google Scholar
  6. 6.
    Hanagan LM (2005) J Architect Eng 11(1):14–18CrossRefGoogle Scholar
  7. 7.
    Nyawako D, Reynolds P (2009) Smart Mater Struct 18. doi: http://10.1088/0964-1726/18/7/075002Google Scholar
  8. 8.
    Díaz IM, Reynolds P (2010) Mech Syst Signal Process 24:1711–1726CrossRefGoogle Scholar
  9. 9.
    Nyawako D, Reynolds P, Hudson M (2012) Proc SPIE 2012Google Scholar
  10. 10.
    Zivanović S, Pavić A, Reynolds P (2007) Eng Struct 29(6):942–954CrossRefGoogle Scholar
  11. 11.
    Racic V (2009) Experimental measurement and mathematical modelling of near-periodic human-induced dynamic force signals. Phd thesis, University of SheffieldGoogle Scholar

Copyright information

© The Society for Experimental Mechanics, Inc. 2013

Authors and Affiliations

  1. 1.Department of Civil and Structural EngineeringUniversity of SheffieldSheffieldUK
  2. 2.Full Scale Dynamics LimitedSheffieldUK

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