Results 1 to 10 of about 2,193 (205)

Model-Free Predictive Anti-Slug Control of a Well-Pipeline-Riser [PDF]

open access: yesModeling, Identification and Control, 2016
Simplified linearized discrete time dynamic state space models are developed for a 3-phase well-pipeline-riser and tested together with a high fidelity dynamic model built in K-Spice and LedaFlow. In addition the Meglio pipeline-riser model is used as an
Christer Dalen, David Di Ruscio
doaj   +1 more source

Experimental Modal Analysis of Angle Signals Based on the Stochastic Subspace Identification Method

open access: yesNUST Journal of Engineering Sciences, 2022
This paper aims to verify the extraction of modal parameters from angle signals using the stochastic subspace identification (SSI) method. The use of angle signal-based mode shapes can reduce the loss of node information and enhance the robustness in ...
In-Ho Kim
doaj   +1 more source

Estimation of hysteretic damping of structures by stochastic subspace identification [PDF]

open access: yesMechanical Systems and Signal Processing, 2018
Abstract Output-only system identification techniques can estimate modal parameters of structures represented by linear time-invariant systems. However, the extension of the techniques to structures exhibiting non-linear behavior has not received much attention.
Bajric, Anela   +1 more
openaire   +2 more sources

Extracting inter-area oscillation modes using local measurements and data-driven stochastic subspace technique

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
In this paper, a data-driven stochastic subspace identification (SSI-DATA) technique is proposed as an advanced stochastic system identification (SSI) to extract the inter-area oscillation modes of a power system from wide-area measurements. For accurate
Deyou YANG, Guowei CAI, Kevin CHAN
doaj   +1 more source

Subspace System Identification of the Kalman Filter [PDF]

open access: yesModeling, Identification and Control, 2003
Some proofs concerning a subspace identification algorithm are presented. It is proved that the Kalman filter gain and the noise innovations process can be identified directly from known input and output data without explicitly solving the Riccati ...
David Di Ruscio
doaj   +1 more source

Fast Multi-Order Stochastic Subspace Identification⋆

open access: yesIFAC Proceedings Volumes, 2011
Abstract Stochastic subspace identification methods are an efficient tool for system identification of mechanical systems in Operational Modal Analysis (OMA), where modal parameters are estimated from measured vibrational data of a structure. System identification is usually done for many successive model orders, as the true system order is unknown ...
Michael Duhler, Laurent Mevel
openaire   +1 more source

Modal Parameter Identification of the Improved Random Decrement Technique-Stochastic Subspace Identification Method Under Non-Stationary Excitation

open access: yesApplied Sciences
Commonly used methods for identifying modal parameters under environmental excitations assume that the unknown environmental input is a stationary white noise sequence.
Jinzhi Wu   +6 more
doaj   +1 more source

Response-Only Parametric Estimation of Structural Systems Using a Modified Stochastic Subspace Identification Technique

open access: yesApplied Sciences, 2021
The present paper is a study of output-only modal estimation based on the stochastic subspace identification technique (SSI) to avoid the restrictions of well-controlled laboratory conditions when performing experimental modal analysis and aims to ...
Chang-Sheng Lin, Yi-Xiu Wu
doaj   +1 more source

Data Inspecting and Denoising Method for Data-Driven Stochastic Subspace Identification

open access: yesShock and Vibration, 2018
Data-driven stochastic subspace identification (DATA-SSI) is frequently applied to bridge modal parameter identification because of its high stability and accuracy.
Xiaohang Zhou   +3 more
doaj   +1 more source

Tracking Modal Parameters of Structures Online Using Recursive Stochastic Subspace Identification under Ambient Excitations

open access: yesBuildings
Continuous and autonomous system identification is an alternative to regular inspection during operations, which is essential for structural integrity management (SIM) as well as structural health monitoring (SHM).
Shieh-Kung Huang   +3 more
doaj   +1 more source

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