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DNV GL Launches OMA Services

By  AOG Staff Monday, 12 August 2019 16:28
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The world’s largest resource of independent energy experts and certification body DNV GL launched a new service in The Operational Modal Analysis (OMA), also known as ambient modal identification, detects the modal properties of a structure based on vibration data collected when the structure is under its operating conditions.

Pic: DNV GL
Pic: DNV GL

As the wind industry strives to cut costs while producing more powerful turbines, traditional designs are being adapted with manufacturers producing taller and slimmer towers with larger blades to optimize production processes and reduce materials to save costs.

These design features present new challenges related to structural failures due to vibrations during operation of the turbine, DNV GL  said.

The new Operational Modal Analysis service will help manufacturers and wind farm owners to understand the dynamic behavior of the main components of the wind turbine regular and unusual wind conditions.

OMA is not only directed to numerical model validation but, as it is based on real measured data. It also helps to identify specific problems that operating wind turbines commonly suffer.

“We are continuously working to implement data analysis approaches throughout our services to help our customers gain valuable insights into the behavior of their assets. This enables DNV GL to project better solutions to each customer according to their specific needs – providing advice on reducing operational costs, said Santiago Blanco, Director and Area Manager Spain and Portugal and Latin America.

Blanco added: "We are focused in providing a turn-key service which includes the problem analysis, equipment definition, installation on site, data acquisition, analysis and reporting; everything to make our customer´s life easier."

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