What is fundamental frequency in SAP PM-PDM-VA - Vibration Analysis?

SAP Term: fundamental frequency

• Component: PM-PDM-VA

• Component Name: Vibration Analysis

• Description: The rotational speed of the shaft or rotor, known also as the '1X' or 'first harmonic'. A machine usually vibrates at more than one frequency, but the dominant frequency is often the fundamental frequency, or a multiple of it.

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• Key Concepts: 
  Fundamental frequency is a term used in vibration analysis, which is a component of SAP's Plant Maintenance and Production Data Management (PM-PDM-VA) module. It is the frequency at which a vibrating object naturally oscillates, and is usually the most dominant frequency in a vibration signal. It is also known as the natural frequency or the first harmonic. 
  
  How to use it: 
  In vibration analysis, fundamental frequency is used to identify the source of a vibration. By measuring the fundamental frequency of a vibrating object, it can be determined whether the source of the vibration is an internal or external force. This information can then be used to diagnose and troubleshoot problems with machinery. 
  
  Tips & Tricks: 
  When measuring fundamental frequency, it is important to ensure that the measurement device is properly calibrated and that the environment is free from any external sources of vibration. This will ensure that the measurement is accurate and reliable. 
  
  Related Information: 
  Fundamental frequency is closely related to other terms such as resonance frequency, which is the frequency at which an object vibrates when excited by an external force, and damping ratio, which describes how quickly an object's vibration dissipates over time. Understanding these concepts can help to better diagnose and troubleshoot problems with machinery.