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Impact Testing Module

• Frequency Response Function (FRF) estimation using impact testing
• Selected data acquisition hardware is supported
• Geometry driven impact sequence
• Impact hammer setup for configuring data acquisition, impact trigger level, and force and response windows
• Measurement sequence is automatically keeping track of number of impacts and current impact position.
• Double hit detection is by default available
• Operations are shown on screen as well as orally informed
• Impacts can be validated in time and in frequency domain. Invalid impacts can be rejected on the fly

Complex Mode Indicator Function (CMIF) - Peak Picking

• Intuitive modal parameter estimation based on peak-picking in frequency domain.
• Immediate results even in case of hundreds of measurement points and modes.
• Extremely robust being based on the Singular Value Decomposition of the matrices of the Frequency Response Functions.
• Handles single- or multiple test setups and single- or polyreference in exact same way.

Rational Fraction Polynomial in Z domain (RFP-Z)

• Estimates global modes from stabilization diagram of modes extracted from rational polynomials.
• Estimates natural frequencies, damping ratios and mode shapes using Automatic Mode Estimation.
• Cursors used to select the frequency range to use in the polynomial estimation.
• Optional correction of damping estimates in case exponential windows are used during internal impact testing.
• Handles single- or multiple test setups and single- or polyreference in exact same way.