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Order Analysis

Determine how the noise and vibration of a component contributes to the overall level of the DUT.

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Order Analysis

With Order Analysis, define orders of interest and compare amplitude values. Automatically detect the top orders or manually choose orders yourself. This provides a quick starting point for extracting orders of interest. It selects the top orders with the highest peak acceleration level defined within the selected analysis range. It also adds a Tachometer Spectrogram, if one is not already open, so the selected orders can be highlighted. Orders can also be manually added and removed by means of a comma separated list of order numbers. When an order is selected, it is highlighted as a red-dashed line on the Tachometer Spectrogram.

Tachometer/Frequency Spectrogram Graphs

Create spectrograms using a selected tachometer trace to quickly visualize orders of high amplitude.

How it works

An order is a frequency where the number is a multiple of a reference rotational speed. Order Analysis captures a reference RPM signal and correlates it with the measured vibration on the rotational equipment. Frequencies corresponding to the reference RPM and its harmonics are identified as orders. As the reference RPM changes, so will the response amplitude and frequency.

Order Tracking tracks the RPM change throughout a waveform file. With the generated graphs, engineers can understand the source of vibration at different frequencies and how they are, or are not, related to the reference RPM.

Among other purposes, this analysis determines which part of the vibration is generated from the rotational source compared to some random source.

The frequencies and amplitudes that follow the order lines are easily differentiated from vibration content not generated by the rotational source.

Order Analysis Leads to STAG

Activate the Order Analysis license and access the tools to effectively analyze field data with dominant rotational or sinusoidal components. Quantify noise and vibration in rotating machinery with order analysis, the recently developed Sine Tracking Analysis and Generation (STAG), and more. Develop tests and analyze data with software tailored for rotational equipment. 

  • Short processing time
  • Automated profile development
  • Simplified process to reduce error
  • Create detailed sine profile test segments based on order-tracked data

Sine Tracking Analysis & Generation
 

Sine-on-Random Test Generation

Save time and reduce transposition errors by quickly importing the analyzed data from STAG to VibrationVIEW. Orders are extracted from the recording before the background time waveform is processed with FDS. This ensures that FDS accelerates random data, and not sinusoidal data.

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