OPTIMAL COST DESIGN OF BRANCHED SEWER SYSTEMS.
OPTIMAL COST DESIGN OF BRANCHED SEWER SYSTEMS.
复制标题
分支下水道系统的优化成本设计。
DOI：
10.1029/wr011i001p00037
复制
发表时间：
1975
影响因子：
5.4
通讯作者：
B. Yen
中科院分区：
文献类型：
--
作者：
L. Mays;B. Yen
采用动态规划（DP）和离散微分动态规划（DDDP）的技术，以实现最佳的成本设计的管道尺寸和分支下水道系统的海拔已开发和演示的例子。将分支系统分解为等价的串联子系统，然后依次求解。DDDP比DP需要更少的计算机时间，尽管它不能保证全局优化。影响DDDP算法效率的主要因素是初始轨迹走廊的位置和宽度、使用的状态（格点）数目以及迭代过程中状态增量的减少率。
Techniques using dynamic programing (DP) and discrete differential dynamic programing (DDDP) to achieve optimal cost design of pipe sizes and elevations of branched sewer systems have been developed and demonstrated by an example. The branched system is decomposed into equivalent serial subsystems, which are then solved in sequence. DDDP requires less computer time than DP, although it cannot guarantee global optimization. Major factors affecting the efficiency in using DDDP are the location and width of the initial trial trajectory corridor, the number of states (lattice points) used, and the reduction rate of the state increment during iterations.