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基于混合搜寻法的车用涡轮增压器多目标优化 被引量:4
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作者 郝真真 倪计民 +1 位作者 石秀勇 李冬冬 《同济大学学报(自然科学版)》 EI CAS CSCD 北大核心 2018年第6期819-827,共9页
选取压气机等熵效率、叶轮最大应力和最大形变为优化目标,基于ANSYS Workbench建立了涡轮增压器压气机流-热-固多物理场耦合仿真模型,利用试验设计方法中的正交矩阵法和2k(k表示试验有k个因子)法混合搜寻出压气机关键设计参数,运用径向... 选取压气机等熵效率、叶轮最大应力和最大形变为优化目标,基于ANSYS Workbench建立了涡轮增压器压气机流-热-固多物理场耦合仿真模型,利用试验设计方法中的正交矩阵法和2k(k表示试验有k个因子)法混合搜寻出压气机关键设计参数,运用径向基函数及非支配排序遗传算法解决全局寻优问题,最终获取叶轮结构设计最优方案.计算结果表明:叶轮最大形变优化效果最显著,降低28.09%,最大应力减小16.34%,压气机等熵效率提高2.83%. 展开更多
关键词 车用涡轮增压器 叶轮结构优化 混合搜寻法 等熵效率 最大应力 最大形变
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Establishment and application of service mapping model for proactive remanufacturing impeller 被引量:2
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作者 宋守许 邰莹莹 柯庆镝 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第12期3143-3152,共10页
Since the complex impeller structure and the difficult remanufacturing process may easily cause advance remanufacturing or excessive use,an optimized design method of impeller and service mapping model was presented f... Since the complex impeller structure and the difficult remanufacturing process may easily cause advance remanufacturing or excessive use,an optimized design method of impeller and service mapping model was presented for its proactive remanufacturing with setting up to explore the best remanufacturing time point in this work.Considering a certain model of long distance pipeline compressor impeller with the Basquin equation and the design method of impeller,the mathematical relationship between the changes of structure and life of the impeller was established.And the service mapping model between the structure and life was set up and simulated by ANSYS software.Thus,the service mapping model was applied to feedback the original design for proactive remanufacturing.In this work,the best proactive remanufacturing time point of impeller was analyzed with the service mapping model,and the structural parameter values could be optimized at this time point.Meanwhile,in the results of this simulation,it proves that the impeller under this optimization performance could satisfy the impeller operating demands.Therefore,comparing with the traditional optimization design method,the remanufacturing optimized design based on the service mapping model is feasible in proactive remanufacturing for sustainable development. 展开更多
关键词 IMPELLER proactive remanufacturing remanufacturing time point service mapping model
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