Results 1 to 10 of about 264 (161)
Measurement + Control, 2021 In the wind tunnel test of a long-span bridge model, to ensure that the dynamic characteristics of the model can satisfy the test design requirements, it is particularly important to accurately identify the modal parameters of the model.
Yulin Zhou +5 more
doaj +2 more sources
Applied Sciences, 2021 A method of modal parameter identification of structures using reconstructed displacements was proposed in the present research. The proposed method was developed based on the stochastic subspace identification (SSI) approach and used reconstructed ...
Xiangying Guo +3 more
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Uncertainty quantification in data-driven stochastic subspace identification [PDF]
Mechanical Systems and Signal Processing, 2021 Abstract A crucial aspect in system identification is the assessment of the accuracy of the identified system matrices. Stochastic Subspace Identification (SSI) is a widely used approach for the identification of linear systems from output-only data because it combines a high computational robustness and efficiency with a high estimation accuracy ...
Edwin Reynders
exaly +3 more sources
Applied Sciences, 2018 This paper proposes a fault identification method based on an improved stochastic subspace modal identification algorithm to achieve high-performance fault identification of dump truck suspension.
Bingwen Liu +4 more
doaj +3 more sources
Sensors, 2015 Wireless sensor networks (WSNs) facilitate a new paradigm to structural identification and monitoring for civil infrastructure. Conventional structural monitoring systems based on wired sensors and centralized data acquisition systems are costly for ...
Soojin Cho +2 more
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A robust probabilistic approach to stochastic subspace identification
Journal of Sound and VibrationModal parameter estimation of operational structures is often a challenging task when confronted with unwanted distortions (outliers) in field measurements. Atypical observations present a problem to operational modal analysis (OMA) algorithms, such as stochastic subspace identification (SSI), severely biasing parameter estimates and resulting in ...
Timothy James Rogers +1 more
exaly +5 more sources
CESSIPy: A Python open-source module for stochastic system identification in civil engineering
SoftwareX, 2022 This paper presents CESSIPy, a Python open-source module for identifying modal properties of a vibrating structure from output-only measurements. The identified properties are natural frequencies, damping ratios and modal shapes.
Matheus Roman Carini, Marcelo Maia Rocha
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High-Speed Railway, 2023 Modal and damage identification based on ambient excitation can greatly improve the efficiency of high-speed railway bridge vibration detection. This paper first describes the basic principles of stochastic subspace identification, peak-picking, and ...
Jiahuan Li +3 more
doaj +1 more source
On subspace system identification methods [PDF]
Modeling, Identification and Control, 2022 An open and closed loop subspace system identification algorithm DSRe is compared to competitive open loop algorithms, DSR, and N4SID. Additionally, DSRe is compared vs the optimal Prediction Error Method (PEM).
Christer Dalen, David Di Ruscio
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Deterministic - Stochastic Subspace Identification for Bridges [PDF]
2007 IEEE/SP 14th Workshop on Statistical Signal Processing, 2007 System identification for structural engineering has received significant attention in the last thirty years. With the ever increasing capacity of computing technology, system identification has been applied to important structures such as bridges and aircraft. In the case of bridges, the output can easily be measured by accelerometers.
H. Thai +6 more
openaire +1 more source