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A new finite element analysis principle based on neural networks is proposed.It can re-alize the finite element analysis in real time.The neural computation of a simple structure was simulat-ed on digital computer,the effect of input parameters on convergent speed and precision was analyzed.Before solving a certain FE problem,the linking weight matrix of the neural net,i.e.,the globalstiffness matrix of the structure analyzed,must be defined.In this paper,a method which uses the BPnet to compute the element stiffness matrix in real time is proposed.
A new finite element analysis principle based on neural networks is proposed. It can re-alize the finite element analysis in real time. The neural computation of a simple structure was simulat-ed on digital computer, the effect of input parameters on convergent speed and precision was analyzed.Before solving a certain FE problem, the linking weight matrix of the neural net, ie, the globalstiffness matrix of the structure analyzed, must be defined.In this paper, a method which uses the BPnet to compute the element stiffness matrix in real time is proposed.