Video: Why everything shakes – testing for natural frequency

Learning objectives

• What is a natural frequency and why do they exist
• How to conduct a basic bump test with a single channel analyzer
• 什么是模态分析另外什么tional information does it provide
• Related tests and concerns.

Anyone dealing with installed machinery will encounter instances where structural resonance is amplifying machine vibration. The machine may meet stringent specifications in one instance but exceed acceptable vibration levels in another. A good understanding of natural frequencies and the tests necessary to identify them will help solve these vexing situations.

Presenter:

Gene Vogel, Pump & Vibration Specialist, Electrical Apparatus Service Association (EASA)

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