Fast impedance matrix calculation for real-time application

Fonseca, Jonatha Revoredo Leite da; Medeiros, Manoel Firmino de

doi:10.1016/j.epsr.2022.108194

Electric Power Systems Research

2022

DOI: 10.1016/j.epsr.2022.108194

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Fast impedance matrix calculation for real-time application

Jonatha Revoredo Leite da Fonseca

Manoel Firmino de Medeiros

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2024

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Stiffness Separation Method for Reducing Calculation Time of Truss Structure Damage Identification

Xiao,

Mao,

Sun

et al. 2024

Structural Control and Health Monitoring

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The inversion of a high‐dimensional stiffness matrix with unknown parameters is time‐consuming. In this study, a stiffness separation method is used to solve the large‐scale matrix inversion problem. Substructures are isolated from the overall structure by mapping the substructure‐related matrix, and the solvable equilibrium equations for the substructures can be established. This method divides the entire stiffness matrix into the sub‐stiffness matrices, and the size of the matrix is reduced, thus greatly reducing the stiffness matrix inversion workload. Meanwhile, this paper refines the formulation of the stiffness separation method and presents the compatibility of forces and displacements with the stiffness matrix. A space‐truss structure with different damage cases is studied to validate the effectiveness of the proposed method. The division of the structure into single and multi‐region scenarios is considered, and the effect of the size and number of substructures on the damage identification is analyzed. These results demonstrate that the stiffness separation method can reduce the computational effort required for analyzing large‐scale truss structures.

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Stiffness Separation Method for Reducing Calculation Time of Truss Structure Damage Identification

Xiao,

Mao,

Sun

et al. 2024

Structural Control and Health Monitoring

View full text Add to dashboard Cite

show abstract

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Fast impedance matrix calculation for real-time application

Cited by 1 publication

References 18 publications

Stiffness Separation Method for Reducing Calculation Time of Truss Structure Damage Identification

Stiffness Separation Method for Reducing Calculation Time of Truss Structure Damage Identification

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