LabVIEW toolkits for output-only modal identification and long-term dynamic structural monitoring

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Wei-Hua Hu (Autor) Outra; Álvaro Cunha (Autor) FEUP; Elsa Caetano (Autor) FEUP; Filipe Magalhães (Autor) FEUP; Carlos Moutinho (Autor) FEUP

Revista

Título: Journal of Structure and Infrastructure Engineering

Vol. 6 Nº 5

Páginas: 557-574

ISSN: 1744-8980

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 18 Citações

ISI Web of Science

Scopus - 28 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia estrutural

Outras Informações

ID Authenticus: P-003-CZA

DOI: 10.1080/15732470903068672

Abstract (EN): This paper describes the development of computational tools for modal identification and long term dynamic monitoring in LabVIEW environment. These tools mainly consist of two individual toolkits for structural modal identification (SMI) and continuous monitoring (CSMI), respectively. The SMI toolkit implements the frequency domain Peak-Picking (PP) and Enhanced Frequency Domain Decomposition (EFDD) method, as well as the time domain Stochastic Subspace Identification (SSI) techniques. Based on this toolkit, the user can easily develop the whole process of structural modal identification by simply pushing buttons. The CSMI toolkit was conceived for continuous dynamic monitoring excluding manual interaction. It automatically searches the latest output measurements, detects maximum vibration amplitudes and makes statistical treatment of acceleration time series, generates waterfall plots for depicting the frequency component distribution and identifies modal parameters based on automated EFDD technique. The application of these tools is briefly described based on experimental data collected at Pinhão bridge and Coimbra footbridge.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18