Output-only estimation of amplitude dependent friction-induced damping

KK Vesterholm, T Friis, E Katsanos, R Brincker… - Dynamics of Civil …, 2020 - Springer
Identification of modal parameters, when a structure is under operational conditions is
termed Operational Modal Analysis (OMA). Current OMA techniques are based on the …

Evaluation of damping using frequency domain operational modal analysis techniques

A Bajrić, CT Georgakis, R Brincker - Dynamics of Civil Structures, Volume 2 …, 2015 - Springer
Abstract Operational Modal Analysis (OMA) techniques provide in most cases reasonably
accurate estimates of structural frequencies and mode shapes. In contrast though, they are …

Influence of noise in correlation function estimates for operational modal analysis

E Orlowitz, A Brandt - Topics in Modal Analysis & Testing, Volume 9 …, 2019 - Springer
The modal parameters in Operational Modal Analysis (OMA) are often estimated based on
non-parametric signatures of the structure's dynamic response. For time domain OMA …

Accurate damping estimation by automated OMA procedures

C Rainieri, G Fabbrocino - Topics in Dynamics of Civil Structures, Volume …, 2013 - Springer
Abstract Systems and techniques for fast damage detection based on vibration analysis are
becoming very attractive in different engineering fields. Modal-based damage detection …

[PDF][PDF] Operational modal analysis based linear system identification of systems with elasto-perfectly-plastic nonlinear behavior

T Friis, M Tarpø, EI Katsanos, S Armador… - Proceedings of the 8th …, 2019 - researchgate.net
Abstract Operational Modal Analysis (OMA) is widely used to identify the modal properties of
systems under ambient vibrations or normal operating conditions. The fundamental …

A Principle for Obtaining Pragmatic Uncertainty Bounds on Modal Parameters

JG Kjeld, A Brandt - Topics in Modal Analysis & Testing, Volume 8 …, 2021 - Springer
In the field of structural dynamics, determination of damping contributions of civil structures is
a subject influenced with considerable uncertainties. Many different modal parameter …

Identification of stick-slip friction in single-degree of freedom system using the random decrement technique

KK Vesterholm, T Friis… - … on Structural Health …, 2019 - portal.findresearcher.sdu.dk
The identification of modal parameters of structures in operational conditions is termed
Operational Modal Analysis (OMA). Stick-slip friction is common in many structures, for …

Operational modal parameter estimation from short-time data series

R Arora, A Phillips, R Allemang - Topics in Modal Analysis, Volume 10 …, 2015 - Springer
Abstract The field of Operational Modal Analysis (OMA) has recently become an emerging
research interest. OMA, also known as Response-Only Modal Analysis, extracts the modal …

Operational modal analysis

SK Au - Modeling, Bayesian Inference, Uncertainty laws …, 2017 - Springer
Operational modal analysis (OMA) aims at identifying the modal properties (natural
frequencies, damping ratios, mode shapes, etc.) of a structure using vibration response …

Damping estimation of friction systems in random vibrations

T Friis, E Katsanos, S Amador, R Brincker - Nonlinear Dynamics, Volume 1 …, 2019 - Springer
Friction is one of the most efficient and economical mechanisms to reduce vibrations in
structural mechanics. However, the estimation of the equivalent linear damping of the friction …