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Date of Publication:2002-01-01

Journal:大连理工大学学报

Affiliation of Author(s):建设工程学部

Issue:4

Page Number:480-484

ISSN No.:1000-8608

Abstract:A new method, which is used to solve the inverse problem of sub-regional elastic modulus of concrete gravity dam on the condition that the independent measurements are less than the parameters needed to be identified, is put forward. Some known prior information is used as physical constraints for the inverse problem in this method, and then multi-objective optimum numerical model is built up to solve the problem of the uniqueness of the inverse result. In order to get the global optimum solution of parameter inversion, the improved simulated annealing algorithm is used to solve the sub-regional elastic modulus of dam. Numerical examples indicate that the method has the high precision of identification, and the result of inversion is reliable. Therefore, this new method can be applied to the practical engineering.

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