Optimal design of dampers within seismic structures

Wenjie Ren; Hui Qian; Wali Song; Liqiang Wang

doi:10.1117/12.840077

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20 October 2009 Optimal design of dampers within seismic structures

Wenjie Ren, Hui Qian, Wali Song, Liqiang Wang

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Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74936L (2009) https://doi.org/10.1117/12.840077
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

An improved multi-objective genetic algorithm for structural passive control system optimization is proposed. Based on the two-branch tournament genetic algorithm, the selection operator is constructed by evaluating individuals according to their dominance in one run. For a constrained problem, the dominance-based penalty function method is advanced, containing information on an individual's status (feasible or infeasible), position in a search space, and distance from a Pareto optimal set. The proposed approach is used for the optimal designs of a six-storey building with shape memory alloy dampers subjected to earthquake. The number and position of dampers are chosen as the design variables. The number of dampers and peak relative inter-storey drift are considered as the objective functions. Numerical results generate a set of non-dominated solutions.

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Wenjie Ren, Hui Qian, Wali Song, and Liqiang Wang "Optimal design of dampers within seismic structures", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74936L (20 October 2009); https://doi.org/10.1117/12.840077

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