First of all, the equation of shrunk interface pressure and the condition of diametrical ratio are deduced under the optimal design principle of shrunk double-layers cylinder.

Based on the equation of shrunk interface pressure and the condition of diametrical ratio under the optimal design principle of shrunk-on cylinder, it is found that the diametrical ratio isn t true of the optimal design principle and the distribution of stress isn t very equality through analyzing and calculating the diametrical ratio and stress to a super high pressure cylinder.

With the analysis of the principle of calculating floating head flange and the calculation chart based on the numerical solution, the possible 'optimum design and most economical design were determined.

This paperstudies optimum design conditioned equations of four-stage raw material gas quenchedcatalytic reactor and describes optimum design conditioned equations of this reactor.

On the basis of the analysis as above,the consummate osillation condition is given in the first place,and the optimum design to the oscillator is also obtained.

Dynamic Simulation and Optimal Design Analysis for Diesel Engine Governing System;

Under the condition of transaction cost and imperfect information on individual unrestricted emission and control cost, a phase-in emission trading program was optimal designed in which firms unaffected by the emissions can voluntarily opt-in and receive tradable permits while affected firms and opt-in firms will obtain optimal permit allocations.

Aiming at six parameters(κ,γ,δ,μ,η and C_0) of the dynamic vibration absorber in deep sea,the optimal design of parameters was processed with Broyden-Flether-Goldfarb-Shanno(BFGS) method of variable metric method,penalty function method and the line-search method.

In addition, we find the optimal design with uniform experimental design.