Inherent Characteristic Analysis of Continuous Beam under Axial Force
 |
International Journal of Recent Engineering Science (IJRES) |  |
| © 2017 by IJRES Journal | ||
| Volume-4 Issue-2 |
||
| Year of Publication : 2017 | ||
| Authors : Mengshi Dong, Kun Zhou, Qiang Liu, Zhaosong Li |
||
| DOI : 10.14445/23497157/IJRES-V4I2P109 |
How to Cite?
Mengshi Dong, Kun Zhou, Qiang Liu, Zhaosong Li, "Inherent Characteristic Analysis of Continuous Beam under Axial Force," International Journal of Recent Engineering Science, vol. 4, no. 2, pp. 39-43, 2017. Crossref, https://doi.org/10.14445/23497157/IJRES-V4I2P109
Abstract
In order to solve the vibration of continuous beam which in the practical engineering application and reaches the influencing factors and change regular pattern, analyzed the natural frequency and vibration mode in the free modal, axial tension, axial compression based on Rayleigh theory. The specific change law is obtained by changing the size of the axial force and verified the rationality of the method though ANSYS. Finally, it is concluded that without considering the nonlinear condition, there is a liner relationship between inherent frequency and axial force, and its inherent frequency will increase gradually along with the increase of axial tension, and decrease gradually along with the increase of axial tension. The conclusion lays the theoretical foundation for the study of the inherent characteristics of the beam and the design of its engineering application.
Keywords
continuous beam, Rayleigh theory, inherent frequency, vibration mode, axial force
Reference
[1] Linlin Yu. The study on the influence factors of critical pre-tightened force of ower beam with composite structure [D].Qinghuangdao:Yanshan University,2012.
[2] Qibo Mao. Vibration and stability analysis for the double-beam systems under compressive axial loads[J].Chinese Journal of Solid mehanics,2015,36(10):132-137.
[3] LanmanGuo,Dishan Huang,Xiaojin Zhu. Transverse vibration and stability analysis of smart beam subject to axial force[J].Journal of vibrationMeasurement&Diagnosis,2011,31(01):78-84.
[4] Boingiu, Mihail, Valentin, etc. A transfer matrix method for free vibration analysis of Euler-Bernoulli beams with variable cross section[J].Journal of Vibration and Control,2016,22(11):2591-2602.
[5] Yinghui Li, Can Cu. An analytical method for vibration characteristic of beam with variable cross-section subjected to variable axial force[J].Journal of Chongqing University of technology(natural science),2012,26(05)： 28-32.
[6] MehrdadMohammadnejad. New analytical approach for determination of flexural, axial and torsional natural frequencies of beams[J].Structural Engineering and Mechanics,2015,55(03):655-674.
[7] Shanliang Liu.The parametric and internal resonances of a beam with axial tension and supporting motion[D].Shenyang: Shenyang instituteof aeronautica,2009.
[8] Huiqun Yuan.Rotordynamic foundation[M].Metallurgical Industry Press,2013:202-208.
[9] Longlin Wang. Analysis of prestressing effect on natural frequency for simply supported beam[D].Changchun: Jilin Unversity,2013.
[10] Ning Zhou. ANAYS mechanical engineering application examples[M]. China water conservancy and Hydropower Press,2006,72-93.
[11] Congxin Yang,Yuntong Ma.Analysis of the dynamic characteristic of a pump rotor under supercritical axial force[J].Journal of Xihua University(Natural Science),2012,31(05):73-76.