Research Article

The fundamental frequencies of longitudinally vibrating rods carrying tip mass and transversally vibrating beams carrying tip mass by using several methods

Volume: 42 Number: 1 March 29, 2021
EN

The fundamental frequencies of longitudinally vibrating rods carrying tip mass and transversally vibrating beams carrying tip mass by using several methods

Abstract

The present paper is concerned with the determination of the frequency equation and sensitivity of the eigenfrequencies of a fixed-free longitudinally vibrating rod and transversally vibrating beam carrying a tip mass by using several methods. First, the exact frequency equations of the such systems are established, and then approximate formulas are given for the fundamental frequency using several methods which contain the equivalent system, Rayleigh quotient, Dunkerley’s formula and continuous system model. The applicability and proximity of these methods versus exact solutions reviewed. The results are compared in a wide range of relevant parameters to give a clear idea about the validity of the proposed formulas. These new derived equations can be very useful for a design engineer who is interested in the eigencharacteristics of similar systems and their sensitivity.

Keywords

References

  1. [1] Humar J. L., Dynamics of Structures, 3rd ed. NJ: Prentice-Hall, Englewood Cliffs, (1990).
  2. [2] Meirovitch L., Analytical Methods in Vibrations 1st ed. London: Collier-Macmillan Limited, (1967).
  3. [3] Timoshenko S., Young D. H., Weaver W. JR., Vibration Problems in Engineering, 4th ed. New York: Wiley, (1974).
  4. [4] Tse F. S., Morse I. E., Hinkle R. T., Mechanical Vibrations, Theory and Applications, 2nd ed. Boston MA: Allyn and Bacon, (1978).
  5. [5] Gürgöze M., On the eigenfrequencies of longitudinally vibrating rods carrying a tip mass and spring–mass in-span, Journal of Sound and Vibration, 216(2) (1998) 295-308.
  6. [6] Turhan Ö., On the eigencharacteristics of longitudinally vibratıng rods with a cross-section discontinuity, Journal of Sound and Vibration, 248(1) (2001) 167-177.
  7. [7] Gürgöze M., Erol H., On the eigencharacteristics of multi-step rods carrying a tip mass subjected to non-homogeneous external viscous damping, Journal of Sound and Vibration, 267 (2003) 355-365.
  8. [8] Lin H.P., Chang S.C., Free vibrations of two rods connected by multi-spring–mass systems, Journal of Sound and Vibration, 330(11) (2011) 2509-2519.

Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Publication Date

March 29, 2021

Submission Date

September 2, 2020

Acceptance Date

March 2, 2021

Published in Issue

Year 2021 Volume: 42 Number: 1

APA
Demir, A. (2021). The fundamental frequencies of longitudinally vibrating rods carrying tip mass and transversally vibrating beams carrying tip mass by using several methods. Cumhuriyet Science Journal, 42(1), 209-217. https://doi.org/10.17776/csj.789526

Cited By

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