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Date of Publication:2005-01-01

Journal:计算力学学报

Affiliation of Author(s):建设工程学部

Issue:2

Page Number:149-154

ISSN No.:1007-4708

Abstract:The techniques for structure parameter identification with incomplete input information in time domain are studied, and the essence of the Compensation Method for solving such problems is analyzed theoretically. The reason of failure for parameter identification based on Compensation Method is indicated and the convergence criterion for least square iterative procedure is set up, which advances the theoretical study of multiple identification. A new more concise and accurate time domain identification method with incomplete measurements is proposed for inversion of load process and estimating structural parameters. The method consists of two steps and the key link is to categorize structural parameters into two groups in terms of the roles in the reaction to the known load. The proposed two stage method is free from the iteration procedure and the numerical studies show that the proposed approach can effectively identify the structural parameters from incomplete measurements.

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