Structural damage identification method based on BMO (bird flock genetic optimization) algorithm

Structural damage identification method based on BMO (bird flock genetic optimization) algorithm

The invention mainly relates to an engineering application of a BMO (bird flock genetic optimization) algorithm in the field of structural damage identification, and specifically discloses a structural damage identification method based on a BMO algorithm. The structural damage identification method...

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Hauptverfasser: LYU ZHONGRONG, QIN CHANGFU, ZHU JIAJIAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator LYU ZHONGRONG
QIN CHANGFU
ZHU JIAJIAN
description The invention mainly relates to an engineering application of a BMO (bird flock genetic optimization) algorithm in the field of structural damage identification, and specifically discloses a structural damage identification method based on a BMO algorithm. The structural damage identification method mainly comprises the following steps: (1) establishing a finite element model of a damaged structure by using a finite element method, and extracting natural frequency, vibration modes and other modal parameters of the structure; (2) ensuring standards and establishing an objective function (MAC) by using the damaged structure and calculating natural frequency residual errors and modes of the structure; (3) optimizing the objective function by using the BMO algorithm until loop stop conditions are satisfied; and (4) finally obtaining an optimal solution namely a damage identification result. Compared to a traditional sensitivity method, by adopting the structural damage identification method disclosed by the inven
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subjects CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Structural damage identification method based on BMO (bird flock genetic optimization) algorithm
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