TY - JOUR ID - 794 TI - Eigenvalue determination by mixed modular networks JO - Iranian Journal of Science and Technology Transactions of Civil Engineering JA - IJSTC LA - en SN - 2228-6160 Y1 - 2004 PY - 2004 VL - 28 IS - 1 SP - 31 EP - 41 KW - Modular KW - Neural Networks KW - Kohonen KW - eigenvalue KW - modal frequency KW - shear frame KW - smart computation DO - 10.22099/ijstc.2004.794 N2 - Smart systems in general, and specifically neural networks, are expected to be of great assistance in large scale matrix computation. However it was necessary to work with smaller problems at first step. To this end, a method based on using perceptrons and Kohonen networks for determining the first three modal frequencies of frames of up to 20 stories high and two bays wide from their stiffness and mass matrices, was developed. This paper introduces this modular network as a preferable alternative for designing smart systems for learning large scale mapping problems in structural engineering, and in addition, reports the successful application of this modular network to the eigenvalue and modal frequency determination of shear frame structures.             UR - https://ijstc.shirazu.ac.ir/article_794.html L1 - ER -