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• The natural frequencies of a structure are the frequencies of free vibration. Free vibration is vibration that occurs in the absence of forced vibration. In a structure undergoing vibration, a mode of vibration is a characteristic pattern (shape) assumed by the structure in which the motion of every particle is simple harmonic motion with the same frequency. The fundamental mode of vibration of a structure is the mode having the lowest natural frequency.
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  Cite Definition for Natural frequency (f)

  American Psychological Association (APA)

  Natural frequency (f). (n.d.). Bureau of Reclamation Glossary. Retrieved June 8, 2023, from website: http://www.expertglossary.com/definition/natural-frequency-f.

  Chicago Manual of Style (CMS)

  Natural frequency (f). www.usbr.gov. Bureau of Reclamation Glossary. Bureau of Reclamation. http://www.expertglossary.com/definition/natural-frequency-f (accessed: June 8, 2023).

  Modern Language Association (MLA)

  "Natural frequency (f)." Bureau of Reclamation Glossary. Bureau of Reclamation. 8 June. 2023 http://www.expertglossary.com/definition/natural-frequency-f.

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