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混合距离算法在蒸汽发生器优化设计中的应用

DOI: 10.3969/j.issn.1006??7043.201212042

Keywords: 距离算法, 复合形算法, 免疫克隆算法, 蒸汽发生器, 多目标优化设计??

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Abstract:

针对传统距离算法在处理非线性约束优化问题时存在非支配解分布不广、连续性不强和精度不高的缺点,设计了一种混合距离算法。该算法加入复合形算法的映射操作,对新找到的非支配解进行深度搜索;同时,引入免疫克隆算法的高频变异策略,在现有非支配解附近寻优。通过对比标准测试函数的非支配解质量,结果显示:混合距离算法所寻找到的非支配解在连续性、宽广性和均匀性上都优于距离算法。采用混合距离算法实现了以重量和一次侧流量为目标的蒸汽发生器多目标优化设计,结果表明:蒸汽发生器非支配解前沿面存在不连续区域,堆芯冷却剂进口温度和传热管内冷却剂流速影响其非支配解分布。

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