TYPE 8720

PULSE Reflex Modal Analysis

Classical modal analysis software with user-friendly geometry drawing and import tools for high test productivity

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This PULSE Reflex software performs classical modal analysis using excitation of the structure from a single hammer or vibration shaker. The intuitive graphical user-interface (GUI) is built around the test workflow, and guides you step-by-step through the test with visual feedback, through measurement validation, parameter estimation set-up, mode selection, analysis validation and reporting. This enables less expert users to routinely perform modal test measurements.

This software is usually paired with PULSE Reflex Structural Measurements for test set-up and acquisition of the structural vibration measurement data in the same intuitive, geometry-led GUI.


  • Optimizing and predicting the emergent dynamic behaviour of assembled structures such as passenger vehicles, using shaker excitation
  • Simple hammer tests or mobility measurements on basic structures such as gearboxes for design verification, benchmarking, quality control and troubleshooting such as damage detection and damage assessment
  • Test planning using finite element (FE) models and subsequent FE model updating with actual modal damping by correlating test results


This software uses a graphical representation of the test object as the primary means of interaction: a ‘test geometry’. You can import and decimate FE models to create a test geometry, or draw one from scratch using intuitive tools. On this geometric model, you can view the excitation and response degrees of freedom (DOFs) and animate the model to help plan how roving accelerometers can be moved around the test object to make all required measurements.


  • Quick searching, sorting and filtering of large amounts of data
  • Replace any faulty transducers during a test
  • Function‐based animation for validation of test set-up
  • Clear stability diagrams for improved overview and straightforward mode selection
  • Frequency response function (FRF) synthesis including error function and frequency response assurance criteria (FRAC) 
  • A comprehensive set of basic mode indicator functions (MIFs), curve-fitters and analysis validation tools:
  • Normal mode indicator function (NMIF) and power mode indicator function (PMIF)
  • Automated mode selection using preferred curve‐fitter for high and low orders: SDOF, MDOF, global solve, local solve



PULSE Reflex Geometry Type 8719 is required for the advanced geometry-guided functions. See the product data sheet for more information