Natural Frequency Computation Method of Nonlocal Elastic Beam


Article Preview

After adopting the constitutive equations of the nonlocal elastic media in the form of Eringen, and making use of the Laplace transformation, the vibration governing equation of nonlocal elastic beam in the Kelvin media are established. Unlike classical elastic models, the stress of a point in a nonlocal model is obtained as a weighted average of the field over the spatial domain, determined by a kernel function based on distance measures. The motion equation of nonlocal elastic beam is an integral differential equation, rather than the differential equation obtained with a classical local model. Solutions for natural frequencies and modes are obtained. Numerical examples demonstrate the efficiency of the proposed method for the beam with simple boundary conditions.



Advanced Materials Research (Volumes 156-157)

Edited by:

Jingtao Han, Zhengyi Jiang and Sihai Jiao






X. L. Shen et al., "Natural Frequency Computation Method of Nonlocal Elastic Beam", Advanced Materials Research, Vols. 156-157, pp. 1582-1585, 2011

Online since:

October 2010




[1] J.A. Krumhansl. In: Generalized continuum field representations for lattice vibrations in lattice dynamics, Pergamon, (1964).

DOI: 10.1016/b978-1-4831-9838-5.50096-0

[2] A.C. Eringen: Int. J. Eng. Sci. Vol. 10 (1972), pp.1-16.

[3] A C Eringen, in: Nonlocal micropolar field theory In Contimuum Physics, Acadamic Press, (1976).

[4] Y.Q. Zhang, G.R. Liu and J.S. Wang: Phys. Rev. B Vol. 70 (2004), pp.205430-6.

[5] Q. Wang: J. Appl. Phys. Vol. 98 (2005), pp.124301-6.

[6] Y.Q. Zhang, G.R. Liu and X.Y. Xie: Phys. Rev. B Vol. 71 (2005), pp.195404-7.

[7] Y.J. Lei, H.Y. Li and J.P. Zhou: J. Natl. Univ. Def. Technol. Vol. 21 (1999), pp.1-4 (In Chinese).

[8] C.L. Zheng: Cn. J. Theor. Appl. Mech. Vol. 37 (2005), pp.796-798 (In Chinese).

In order to see related information, you need to Login.