Sparse Bayesian Optimization with a Sequential Coordinate Search for Structural Finite Element Model Updating Using Uncertain Modal Data

Zhenghao Ding

doi:10.1016/j.swevo.2026.102360

Sparse Bayesian Optimization with a Sequential Coordinate Search for Structural Finite Element Model Updating Using Uncertain Modal Data

2026-03-20

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DOI：10.1016/j.swevo.2026.102360

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• A surrogate-assisted BO framework is developed for high-dimensional FE model updating under a limited evaluation budget. • Sparse initialization and coordinate-wise ECI search are combined to improve robustness and scalability in high-dimensional expensive optimization problems. • A clustering-based Jaya optimizer is integrated to enhance the stability of one-dimensional acquisition maximization. • Numerical benchmarks and laboratory experiments demonstrate improved accuracy and robustness, especially for challenging multi-small-damage cases.

Keywords:

Bayesian Optimization

Finite Element Model Updating

Sparse Initialization

Coordinate-wise Search

Jaya Optimizer

Sparse Bayesian Optimization with a Sequential Coordinate Search for Structural Finite Element Model Updating Using Uncertain Modal Data

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