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In general, you can perform order analysis in the following types of applications:

• machine condition monitoring (MCM)
• noise, vibration, and harshness (NVH) testing

MCM applications typically analyze vibration response data to identify defective parts and ensure continuous performance. NVH applications typically analyze sound and vibration data to verify the quality of a system and identify parts that produce unwanted sound or vibration.

Application Areas

You can perform order analysis during every stage of the lifecycle of a machine, from design to manufacturing to operation.

Design and Validation Applications

You can perform order analysis during the research and development stage of a machine. Order analysis can help you locate sources of unwanted sound and vibration. You can lessen or remove the sound and vibration by changing the design of specific mechanical parts. Order analysis also can help you separate rotational and structural vibrations to determine critical machine speed and resonance characteristics. You can validate and modify machine structures according to the analysis results.

Manufacturing Applications

You can perform order analysis to set sound and vibration measurement baselines. Then you can test machine performance and quality with the baselines you create. You also can use order analysis to fine-tune a machine in the field or to perform typical adjustments, such as balancing and alignment before a product ships.

Operational Applications

Machines like turbines, pumps, or compressors require careful monitoring and maintenance during operation. Vibration signals are good indicators of the physical condition of a machine. Performing order analysis on those signals can help you check working conditions and detect faulty components.

Application Process

You can break a typical order analysis application into three primary steps: acquiring data, analyzing data, and presenting data. The Order Analysis VIs, together with National Instruments software and data acquisition (DAQ) devices, can help you complete the entire order analysis application process. The following illustration shows the order analysis application process in detail.

Note  The dashed boxes indicate optional operations.

Data Source refers to the data acquisition component of the order analysis application. The steps between Scaling and Calibration and Analysis represent the analysis component. The last step, Display, refers to the way in which you present the order analysis results.