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Structural Monitoring and Maintenance Volume 5, Number 2, June 2018 , pages 261-272 DOI: https://doi.org/10.12989/smm.2018.5.2.261 |
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An innovative design method for nonlinear tuned mass damper |
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Luyu Liand Yongjia Du
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| Abstract | ||
| The commonly used TMD design method in the project assumes the TMD has pure linearity. However, in real engineering TMD will exhibit nonlinear behaviors. Without considering the nonlinearity of TMD, the control effect of the TMD that is designed by the linear design method, may be worse and even enlarge the structural response. In this paper, based on the previous study results of nonlinear TMD, the improved design method for engineering application is proposed. The linear design method and the improved design method are compared. Taking the best parameter obtained by the improved design method is less than or equal to 90% of that obtained by the original design method as the dividing line. The critical nonlinear coefficient, reaching which value the improved design method needs to be used, is given. Finally, numerical simulations on two engineering examples are conducted to proof the results. | ||
| Key Words | ||
| TMD; engineering design; nonlinearity; improved design method; critical coefficient | ||
| Address | ||
| Luyu Liand Yongjia Du: School of Civil Engineering, Dalian University of Technology, Dalian, Liaoning, China | ||
