华中科技大学硕士学位论文
II
Abstract
Urban water distribution network design is a relatively important component of the
entire design of urban water supply project. Meanwhile, the total cost of pipe network is
regarded as a considerable important factor which affects the total investment of the entire
water supply project. Because it relates to the stability, security and rationality of urban
water supply system, it’s an absolutely meaningful and valuable work to optimize the design
of urban water-supply pipe network.
In this paper, it first introduces the general knowledge of hydraulic calculation of urban
water distribution network. On this basis, it describes the optimum design theory and
mathematical model of water distribution network. Most of all, it introduces a brand-new
mathematical model for the optimum design of urban water distribution network which is
based on improved genetic algorithm. This article uses some concrete examples to prove
that the improved genetic algorithm in comparison with the simple genetic algorithm can
well improve the solving quality and efficiency in the optimization process to find the
global optimal solution.
A complete design of urban water pipe network should mainly include optimization
calculation and engineering drawing generation that can make network optimization theory
better and more effectively combine with
the engineering design practice. Thereupon, this
article has developed the integration program to optimize the design of pipe network based
on AutoCAD. The program uses the mixed programming technique of MATLAB and Visual
C++ to model and optimize the pipe network. And finally, it can automatically draw the
water isobar of the water supply networks.
In VC + +, the developed programs are small, fast implementation, higher real-time
control, good combination with AutoCAD, but it lacks the ability of large amounts of data
processing and analysis ,data visual expression. Therefore, the method of Hybrid
