Results 131 to 140 of about 47,105 (164)

Output-only Modal Identification

2014
This chapter is focused on the methods for modal parameter estimation from previously acquired and pretreated time histories of the structural response to ambient vibrations. The fundamental assumptions of OMA methods and the basic concepts of structural dynamics models in time and frequency domain are illustrated, pointing out the common mathematical ...
Carlo Rainieri, Giovanni Fabbrocino
openaire   +1 more source

Multi-modal Person Identification in a Smart Environment

2007 IEEE Conference on Computer Vision and Pattern Recognition, 2007
In this paper, we present a detailed analysis of multimodal fusion for person identification in a smart environment. The multi-modal system consists of a video-based face recognition system and a speaker identification system. We investigated different score normalization, modality weighting and modality combination schemes during the fusion of the ...
Hazim Kemal Ekenel, Mika Fischer, Qin Jin, Rainer Stiefelhagen   +3 more
openaire   +1 more source

Modal parameter identification using simulated evolution

AIAA Journal, 1997
A global optimization algorithm based on the Darwinian evolutionary theory is implemented for the identification of modal parameters of linear vibrating structures. The capability of the evolutionary search method in locating the global minimum among numerous local minima is demonstrated.
Chiang, Dar-Yun, Huang, Si-Tsong
openaire   +1 more source

An Overview of Enhanced Modal Identification

2007
The application of identification techniques is spreading in many engineering fields, as a reliable and realistic understanding of structures is becoming a common issue. The aim of this paper is to summarize the main steps needed for a complete and up-to-date identification process, referring to the modal approach. The complex eigenvalue approach and a
openaire   +1 more source

Identification of Modal Parameters of Rotors

1984
The occurence of instability in rotating machinery may be caused by different effects: oil film in journal bearings, sealings, internal damping etc.
openaire   +1 more source

Machine learning-based stochastic subspace identification method for structural modal parameters

Engineering Structures, 2023
Yuequan Bao
exaly  

Fully automated operational modal identification of regular and irregular buildings with ensemble learning

Structures, 2023
Chengqing Wu, Hasan Mostafaei, Davood Mostofinejad   +2 more
exaly  

Assessing uncertainty in fast Bayesian modal identification based on seismic structural responses

Mechanical Systems and Signal Processing, 2023
Feng-Liang Zhang, Heung Fai Lam
exaly  

Fully automated precise operational modal identification

Engineering Structures, 2021
Peng Liang, , Yongjian Liu
exaly  

Spectral optimization-based modal identification: A novel operational modal analysis technique

Mechanical Systems and Signal Processing, 2023
Mohammad Ali Hadianfard
exaly