Exploring the Capabilities of Open-Source Hard- and Software for Experimental Dynamics in Rotating Systems

This paper presents a first utilization of the Open Acquisition System for IEPE Sensors (OASIS) for experimental dynamic measurements of an academic test structure with a topology similar to a wind turbine designed to have periodically changing mass and stiffness parameters. After deriving the analytical equations of a minimal model, the vibrations of the corresponding test rig are measured using two OASIS boards, one attached to the rotating part and one remaining stationary. Using open-source Python packages, the modes of the system in different configurations are computed and compared to the analytical model. Lastly, the frequency response functions (FRF) for various rotational speeds are retrieved and analyzed. The results show that a complete measurement and analysis process of a mechanical system is possible using mainly open-source hardware- and software. For this reason, the further development of open-source tools, as well as the development of new ones, is desirable.     «

This paper presents a first utilization of the Open Acquisition System for IEPE Sensors (OASIS) for experimental dynamic measurements of an academic test structure with a topology similar to a wind turbine designed to have periodically changing mass and stiffness parameters. After deriving the analytical equations of a minimal model, the vibrations of the corresponding test rig are measured using two OASIS boards, one attached to the rotating part and one remaining stationary. Using open-source...     »