Diagnostics investigations of DMG-1A transmission with operational modal analysis methods application

The modern engineering applications using virtual environment to simulating calculations conducting finds wider use in the process of projecting and structure dynamic analysis of machine engines and devices. Utilization of the modal analysis, aiming on the aid of transmission technical state description process brought to obtainment of three modal model parameters that describing the studied object. The analysis of results allowed to the qualification of characteristic modal parameters set for chosen technical state and introducing the natural frequency shapes for given modal model parameters of the studied mechanical construction. The LMS Test.Lab software with Modal Analysis Lite module was used for modal analysis. The results of investigations were a modal model parameters and mode shapes of investigated transmission.