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The nonlinear problems on the development of the performance of SATMD in applications

  • J. Teng*
  • , A. Z. Yan
  • , Z. X. Lu
  • , H. J. Liu
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The expression of equivalent stiffness in considering the geometrical nonlinearity of variable stiffness device is derived. The cubic polynomial model of the equivalent spring is obtained for analyzing the dynamic characteristic of the nonlinear system. The numerical results show that the control effectiveness of SATMD with nonlinearity is better than that with linearity as the frequency ratio is little less than 1. The existing Hertz model is adopted for constructing the equations with impact between TMD and the main structure. The investigation of impact parameters shows that the dimensionless clearance and the impact stiffness are more sensitive to the control effect of TMD than other impact parameters, such as frequency ratio, damping ratio. The robustness of TMD can be improved significantly when the frequency of TMD is detuning, if the impact parameters are reasonably designed.

Original languageEnglish
Title of host publicationEarth and Space Conference 2008
Subtitle of host publicationProceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
PublisherASCE - American Society of Civil Engineers
ISBN (Print)9780784409886
DOIs
StatePublished - 2008
Externally publishedYes
EventEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments - Long Beach, CA, United States
Duration: 3 Mar 20085 Mar 2008

Publication series

NameEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
Volume323

Conference

ConferenceEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
Country/TerritoryUnited States
CityLong Beach, CA
Period3/03/085/03/08

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