System for hammer impact testing LMS Test.Lab Impact Modal Analysis provides a complete modal testing solution using impact hammer Frequency Response Function Measurements for up to 11 simultaneous response channels referenced to the hammer input force. All channels support ICP® transducers or any Voltage signal.
The Geometry workbook allows fast generation of wireframe and full 3D visualization of test and analysis results. The Modal Impact workbook provides embedded expert guidance for trigger parameter setting and FFT-window selection, with immediate feedback showing the effect of parameter changes on the last measurement. It supports automatic active channel detection for one-man calibration functionality. The auto-acceptance function and audio feedback, providing information on overloads and ready-for-next-average signal, enable the operator to take measurements without keyboard interaction. A handheld PDA can be used for measurement status feedback, visualization of measured signals and entry of the next run’s node identifiers (optional).
The Operational Deflection Shapes add-in provides immediate feedback to validate the correctness of FRF (transducer position, orientation, calibration, SNR, etc.) by on-the-spot animation of the geometry model.
The Modal Analysis workbook offers various fast and accurate single or multiple reference parameter estimation algorithms, and a complete set of modal model validation tools, such as MAC and FRF synthesis. It is available as a standalone analysis environment or as add-in to the Modal Impact workbook, which allows on-the-spot analysis.
