Overview of DEWESoft ARTeMIS OMA

Operational Modal Analysis (OMA) is a technique that focuses on analyzing the dynamic behavior of structures under operational conditions. Unlike traditional modal analysis that requires controlled excitation, it utilizes naturally occurring loads such as wind, waves, and machine operation. The software excels in this domain, enabling the estimation of vital modal parameters solely from measured output response data.

Technique and Results

It stands out by exclusively utilizing measured output response signals, eliminating the need for input excitation signals. This software is particularly beneficial for structures subjected to complex and uncontrollable loads, like offshore platforms facing waves or buildings enduring wind forces. This tool can accurately estimate modal parameters such as mode shapes, natural frequencies, and damping ratios.

Multipurpose Hardware

The versatility of the software is evident through its support for an extensive array of advanced monitoring and analysis tools during data acquisition. This capability allows for multi-physics investigations, aiding in predictive maintenance scheduling and the early detection of critical events.

Easy Workflow

One of the standout features of the software is its user-friendly workflow. Time data files obtained with Dewesoft (DXD files) can be seamlessly imported into the application for analysis. Furthermore, geometries from Dewesoft can be effortlessly integrated via UNV files, streamlining the process.

OMA vs. ODS

It's essential to distinguish between Operational Modal Analysis (OMA) and Operating Deflection Shapes (ODS). While ODS provides deflection shapes, it goes a step further by enabling the estimation of modal models from operational data. This distinction makes it a more comprehensive and powerful technique.

Different Names for OMA

It goes by various names, such as output-only modal analysis, ambient response analysis, ambient modal analysis, in-operation modal analysis, and natural input modal analysis. These terms highlight the technique's focus on extracting valuable insights from operational data.

System Requirements

OS: Windows 10/11 (64-bit)

CPU: Intel® 64-bit processor architecture

Memory: 4GB of RAM (8GB or more recommended)

Space: 10GB of available hard disk space (100GB recommended for optimal performance)

Display: 1,024x768 screen resolution or higher

Conclusion

The DEWESoft ARTeMIS OMA software is a revolutionary tool that utilizes Operational Modal Analysis to reveal valuable information about the dynamic behavior of intricate structures. Its ability to work with measured output response signals, comprehensive modal parameter estimation, and support for advanced analysis tools make it an indispensable asset in civil engineering and machinery operations. User-friendly workflows and distinct packages empower engineers and analysts to understand structural dynamics better, leading to enhanced safety, performance, and maintenance strategies.