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Time waveform replication

A vibration controller feature within a closed-loop test system for replicating a waveform with precise, real-time, multi-channel control.

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Time waveform replication

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Time waveform replication (TWR), also known as long time history (LTH), exactly replicates, in the laboratory, vibration environments using data obtained in the field. Field measurements, such as a vehicle’s road test or an aircraft flight run, can be imported into the host PC, compensated for suitability to the shaker system, and then used to re-create the field environment within the laboratory.

  • Laboratory replication of field environments for automotive and military vehicles, aircraft and trains
  • Test-track vibration, road-test vibration, and aircraft-landing shock, amongst other tests
  • Recreating long events lasting from several minutes to several hours