Dissertation
Dissertation > Mathematical sciences and chemical > Mechanics > Mathematical methods in mechanics

Static and Dynamic Analysis of Transversely Isotropic Rigid Road Surface Structure by Finite and Infinite Element

Author LiuChao
Tutor LiuJunQing
School Xi'an University of Architecture and Technology
Course Engineering Mechanics
Keywords transversely isotropy infinite element random finite element dynamical response
CLC O302
Type Master's thesis
Year 2009
Downloads 109
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Normally the rigid road surface structure is supposed as calculation model as a elastic foundation board based on the foundation soil.But if you use this calculation model,it will bring a lot of trouble in mathematics and mechanics.Because materials have diversity,random uncertainties and vehicle load and the boundary condition of complexity.Transversely isotropic elastic plate and foundation soil are adopted to construct a kind of road surface structure system,using the space eight-nodes finite element,space eight-nodes single way、two-way、three-way infinite element coupling method and compiling interrelated software-Matlab programs,the static and dynamic response of this structure system are researched by this paper.And the foundation settlement numerical calculation has been given to analyze,which indicates that the result of structure system which is drawn into transversely isotropic theory is meet the needs of calculation accuracy at the foundation of using the finite-infinite element to solve the plate and foundation road surface structure system.To imitate vibrating load of automobile at the same time,changing regularity of displacement and acceleration of road surface structure system has been shown through contrasting the result of using transversely isotropy model or not.Based on this research,this paper use the theory of stochastic finite element, practice second perturbation analysis and compiling interrelated software-Matlab programs,the static and dynamic response of this structure system are researched by this paper.It is researched that using the theory of stochastic finite element in the analysis of transversely isotropic rigid road surface structure is meet the needs of calculation accuracy through comparing calculation results.And it is useful for the further research and make up this deficiency for this system theory.It is an economical and effectual academic guide for concrete-rigid road surface structure,airport runway, board type foundation engineering design.

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