Daizhong Su¹, Wenjie Peng²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.6, No.4, pp. 221-228, 2008, DOI:10.3970/icces.2008.006.221

Abstract Finite element analysis (FEA) has proved to be a useful method to analyse the strength of worm gears; however, it is usually time consuming and difficult for parametric design, and, hence, it is difficult to apply FEA for design optimisation. To overcome this problem, artificial neural network and genetic algorithm are utilised in this research to optimise worm gear design based on FEA results. A new type of worm drive, an involute cylindrical worm matting with an involute helical gear, is taken as an vehicale to illustrate the approach developed. More >

A.A.Bayramov¹, N.A.Safarov²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.5, No.3, pp. 173-178, 2008, DOI:10.3970/icces.2008.005.173

Abstract In paper the automatic photoelectric device (APD) for most optimum illumination of streets and objects is described. The offered photovoltaic system is mean for automatic switching on and switching off to an electric circuit of electric systems and illuminating lamps. This system differs from existing ones that the silicon solar cell is used for the purpose increase of input sensitivity and an output power, and so the circuit of our system is simpler. One of main technical advantages is that the relay for a current of 10A is used on an output of the automatic… More >

Cheng-Hung Huang¹, Hsin-Hsien Wu²

CMC-Computers, Materials & Continua, Vol.5, No.3, pp. 197-212, 2007, DOI:10.3970/cmc.2007.005.197

Abstract The conjugate gradient method (CGM) is applied in an inverse fin design problem in estimating the optimum shapes for the non-Fourier spine and longitudinal fins based on the desired fin efficiency and fin volume at the specified time. One of the advantages in using CGM in the inverse design problem lies in that it can handle problems having a huge number of design parameters easily and converges very fast.
The validity of using CGM in solving the present inverse design problem is justified by performing the numerical experiments. Several test cases involving different design fin efficiency, More >

R. Sedaghati, A. Suleman¹, S. Dost, B. Tabarrok²

CMES-Computer Modeling in Engineering & Sciences, Vol.2, No.2, pp. 259-272, 2001, DOI:10.3970/cmes.2001.002.259

Abstract A structural analysis and optimization method is developed to find the optimal topology of adaptive determinate truss structures under various impact loading conditions. The objective function is based on the maximization of the structural strength subject to geometric constraints. The dynamic structural analysis is based on the integrated finite element force method and the optimization procedure is based on the Sequential Quadratic Programming (SQP) method. The equilibrium matrix is generated automatically through the finite element analysis and the compatibility matrix is obtained directly using the displacement-deformation relations and the Single Value Decomposition (SVD) technique. By More >