Abstract
Parameter optimization analysis on the multi-dimensional earthquake isolation and mitigation device (MEIMD) installed in reticulated structures is carried out in this study. First, optimization parameters and constrain conditions are determined in accordance with the characteristics of MEIMD, and an object function is derived from the energy equation. Then, the genetic algorithm is used to realize parameter optimization of the MEIMD added in a cylindrical reticulated shell. Finally, in order to verify the effectiveness of the proposed optimization method, dynamic responses of structures without devices, with devices possessing random and optimal parameters are compared, and the sensitivity to the earthquake excitations of the optimization method is studied. It can be concluded that dynamic responses of the structure decrease obviously when adding the MEIMD, and a better seismic reduction effect can be reached when the MEIMD is designed optimally in accordance with the optimization method, and different earthquake excitations have slight influence on the optimization results.
Similar content being viewed by others
References
Xu, Z.D., Huang, X.H., Lu, L.H.: Experimental study on horizontal performance of multi-dimensional earthquake isolation and mitigation devices for long-span reticulated structures. J. Vib. Control 18(7), 941–952 (2011)
Agrawal, A.K., Yang, J.N.: Design of passive energy dissipation systems based on LQR control methods. J. Intell. Mater. Syst. Struct. 10, 933–944 (1999)
Xu, Z.D., Zhao, H.T., Li, A.Q.: Optimal analysis and experimental study on structures with viscoelastic dampers. J. Sound Vib. 273(3), 607–618 (2004)
Lee, S.H., Son, D.I., Kim, J., Min, K.-W.: Optimal design of viscoelastic dampers using eigenvalue assignment. Earthq. Eng. Struct. Dyn. 33, 521–542 (2004)
Cimellaro, G.P., Retamales, R.: Optimal softening and damping design for buildings. Struct. Control Health Monit. 14(6), 831–857 (2007)
Pawlak, Z., Lewandowski, R.: Optimization of viscoelastic dampers as described by the fractional rheological model. In: Proceedings of the Tenth International Conference on Computational Structures Technology, Valencia, Spain. Civil-Comp Press, Stirlingshire (2010)
Ribakov, Y., Agranovich, G.: A method for design of seismic resistant structures with viscoelastic dampers. Struct. Des. Tall Spec. Build. 20(5), 566–578 (2011)
Xu, Z.D., Zeng, X.A., Huang, X.H., Lu, L.H.: Experimental and numerical studies on new multi-dimensional earthquake isolation and mitigation device: horizontal properties. Sci. China, Technol. Sci. 53(10), 2658–2667 (2010)
Min, K.W., Seong, J.Y., Kim, J.: Simple design procedure of a friction damper for reducing seismic responses of a single-story structure. Eng. Struct. 32(11), 3539–3547 (2010)
Marano, G.C., Greco, R.: Optimization criteria for tuned mass dampers for structural vibration control under stochastic excitation. J. Vib. Control 17(5), 679–688 (2011)
Bandivadekar, T.P., Jangid, R.S.: Optimization of multiple tuned mass dampers for vibration control of system under external excitation. J. Vib. Control (2012). doi:10.1177/1077546312449849
Trifunac, M.D.: How to model amplification of strong earthquake ground motions. Earthq. Eng. Struct. Dyn. 22(3), 275 (1993)
Fajfar, P.: Capacity spectrum method based on inelastic demand spectra. Earthq. Eng. Struct. Dyn. 28(9), 979–993 (1999)
Acknowledgements
The study was financially supported by the Major Research Plan of National Natural Science Foundation of China with Granted number 90915004; Doctoral Discipline Fund of Education Ministry with Granted number 6205000009; Jiangsu Province 333 High-level Talents Project. These supports are gratefully acknowledged.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xu, ZD., Guo, YF., Wang, SA. et al. Optimization analysis on parameters of multi-dimensional earthquake isolation and mitigation device based on genetic algorithm. Nonlinear Dyn 72, 757–765 (2013). https://doi.org/10.1007/s11071-013-0751-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11071-013-0751-9