Software for Operational Modal Analysis
ARTeMIS
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The ARTeMIS name stands for Ambient Response Testing and Modal Identification Software. It covers all the tools an engineer needs to perform a high quality modal analysis without knowing the forces acting on the structure and while the structure is in operation. This technology is in general known as Operational Modal Analysis.  

ARTeMIS Modal 5.0 (64 bit) Released - Try it Today! 

The Ultimate Tool for Operational Modal Analysis

 


New SSI-UPCX Modal Estimator with Uncertainty Estimation

In ARTeMIS Modal Pro 5.0, a new powerful Stochastic Subspace Identification technique is included. The name of this Crystal Clear Stochastic Subspace Identification technique is Extended Unweighted Principal Component, or in short SSI-UPCX.

A unique aspect of the SSI-UPCX technique is that uncertainty estimation of the modal parameters is performed in a fast and memory-efficient way. Uncertainties associated with the measured data are propagated to uncertainties associated with the estimated modal parameters. The uncertainties are visualized in the Stabilization Diagram using confidence bounds, and through the estimated Coeffiencients of Variation (CV) the most uncertain modes are automatically filtered out.

There are several benefits of this new technique compared to today's modal analysis estimation techniques:

  •  More accurate estimates of modal parameters than when using conventional "mean value" based clustering techniques.

  • Effective elimination of computational (noise) modes and other unstable modes.

  • Automatic modal estimation becomes more reliable in Structural Health Monitoring.

Please read more here about this exciting new technique.

 

 


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Case Studies - ARTeMIS Modal
Vasco da Gama Cable-Stay Bridge
Heritage Court Tower
Prolec GE Transformer

Damage Detection of the Dogna Bridge
High-rise Building during Northridge EQ

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ARTeMIS Modal - Operational Modal Analysis


Structural Vibration Solutions A/S • Tel: +45 9635 4422 • Fax: +45 9635 4575 • svibs@svibs.com




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