Research Papers

Theoretical Solution for Thick Plate Resting on Pasternak Foundation by Symplectic Geometry Method

[+] Author and Article Information
Liu Heng

School of Civil and Hydraulic Engineering,
Dalian University of Technology,
Dalian 116024, China

Manuscript received March 26, 2013; final manuscript received June 8, 2013; accepted manuscript posted June 13, 2013; published online September 18, 2013. Editor: Yonggang Huang.

J. Appl. Mech 81(3), 031007 (Sep 18, 2013) (4 pages) Paper No: JAM-13-1135; doi: 10.1115/1.4024797 History: Received March 26, 2013; Revised June 08, 2013; Accepted June 13, 2013

Based on the analogy of structural mechanics and optimal control, the theory of the Hamilton system can be applied in the analysis of problem solving using the theory of elasticity and in the solution of elliptic partial differential equations. With this technique, this paper derives the theoretical solution for a thick rectangular plate with four free edges supported on a Pasternak foundation by the variable separation method. In this method, the governing equation of the thick plate was first transformed into state equations in the Hamilton space. The theoretical solution of this problem was next obtained by applying the method of variable separation based on the Hamilton system. Compared with traditional theoretical solutions for rectangular plates, this method has the advantage of not having to assume the form of deflection functions in the solution process. Numerical examples are presented to verify the validity of the proposed solution method.

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Grahic Jump Location
Fig. 1

A thick plate with four free edges




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