Abstract
Because complex cable systems are widely used in engineering practice, the issues related to parameter identification of complex cable systems are becoming increasingly important. In this study, a universal characteristic frequency equation, considering boundary conditions, various lateral forces, and multiple factors pertaining to cables simultaneously, was established for a class of cable systems installed with intermediate lateral components. The optimization model corresponding to the equation was established to transform the root-finding problem of the complicated transcendental equation into a relatively simple parameter identification and optimization problem. Thereafter, a parameter identification scheme for complicated cable systems was proposed using the particle swarm optimization algorithm. Through experimental tests using a full-scale cable–damper system, a detailed multistep, multiparameter identification program was presented for complex cable systems. The experimental results, achieved effectively using the proposed method, indicate a significant reduction in parameter identification errors and improvement in identification quality.
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