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弹性力学的实时人工神经计算模型

Real-time Neurocomputing Model Used in Elas-tic Mechanics

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【作者】 孙道恒胡俏徐灏

【Author】 Sun Daoheng et al. (North-eastern University,Shenyang, China )

【机构】 东北大学机械工程学院!沈阳市110006

【摘要】 以弹性力学为例,依靠最小势能原理,将弹性力学计算问题转化为等式约束或无约束的二次优化问题。利用人工种经网络的并行计算能力和动态稳定特点寻优,建立弹性力学人工神经计算模型;给出改进的Hop-field和TH网络的结构和参数对应情况;对一个简单结构的弹性力学人工神经计算进行数值模拟。

【Abstract】 How to increase the speed ofstructural analysis when considering complexmechanical behaviors is always a remarkableproblem for engineers and researchers. In thispaper,taking the elastic mechanics problem as anexample, based on the Minimal Potential Princi-ple, the computation was transmit to theQuadratic Programming (QP) with constraints.The optimal point can be sought by using an ar-tificial neural network parallel and dynamic sta-bilization property. The elastic neurocomputingmodel was built up, and the neural net- -Mod-if ied Hopfield and Modified TH net, and its cor-responding parameters were given. The neuro-computation of a simple elastic structure wassimulated on digital computer. The results showthat the neurocomputed conclusion is in agreewith one from traditional FEM and the computa-tion is in real-time manner.

【基金】 国家自然科学基金!59405008;辽宁省博士科研起动基金
  • 【文献出处】 中国机械工程 ,China Mechanical Engineering(中国机械工程) , 编辑部邮箱 ,1997年02期
  • 【分类号】O343.2
  • 【被引频次】4
  • 【下载频次】101
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