TYPE 8721

PULSE Reflex advanced modal analysis

Classical modal analysis software with MIMO analysis and user-friendly geometry drawing and import tools

Request a quote

This PULSE Reflex™ software builds on PULSE Reflex Modal Analysis Type 8720, enhancing your abilities to perform classical modal analysis using structural excitation from multiple hammers, shakers and references. This allows large, complex test objects to be excited reliably. This more advanced software also increases the complexity of the plots that are possible, and includes more advanced mode indicator functions (MIFs).

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- guided user-interface (GUI).

USE SCENARIOS

  • Optimizing and predicting the emergent dynamic behaviour of complex assembled structures such as aircraft during ground vibration testing (GVT)
  • Test planning using finite element (FE) models and subsequent FE model updating with actual modal damping by correlating test results
  • Analysing structures with repeated roots such as large, symmetrical buildings, using multiple input references or multiple input multiple output (MIMO) analysis

GEOMETRY-GUIDED ANALYSIS

This software uses a graphical representation of the test object as the primary means of interaction: a ‘test geometry’. You can import FE models and decimate them 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.

CAPABILITIES

This software adds these advanced functions to [PULSE Reflex Modal Analysis Type 8720]:

  • Geometry node selection task
  • Complex mode indicator functions (MIF)
  • Multi‐variate mode indicator function (MMIF)
  • Advanced stabilization diagrams: cluster diagrams and pole density diagrams for optimal curve‐fitting and mode selection 
  • Complexity plots, autoMAC and crossMAC tables and 3D plots for validation of mode shape complexity and correlation
  • Curve-fitting: polyreference time and frequency, rational fractional polynomial (RFP-Z), eigensystem realization, alias-free polyreference (AFPoly™)
  • Stability diagram with enhanced mode solution (RFP-Z) 
  • CoMAC geometry plots for comparing paired modal models

ADDITIONAL CAPABILITIES

 

REQUIREMENTS

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