Impact Hammer0 pages

Modal Impact Hammer
Bently Nevada* Asset Condition Monitoring
Description
The Bently Nevada* Impact Hammer Kit is used with our ADRE* 408 DSPi and
other compatible instruments to determine the dynamic behavior of mechanical
structures.
Impact hammer testing involves striking a mechanical structure with an
instrumented hammer and collecting response information from transducers
mounted on the structure. The response from a single accelerometer yields
transfer and transactional characteristics of the structure. The integration of
response information from multiple accelerometers at various points of interest
allows for modal analysis (velocity compliance, impedance, mobility).
The hammer excites resonance frequencies in the structure over a broad range.
The physical properties of the hammer (size and mass) and the strike velocity
determine the amplitude and frequency content in the force impulse. The
hammer tip material determines the energy content of the impulse. Extender
masses can be used to concentrate more energy at lower frequencies.
Specifications and Ordering Information
Part Number 286304-01
Rev. NC (05/10)
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