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基于相似性分析的主动再制造优化设计方法 被引量:1
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作者 吕岩 柯庆镝 +1 位作者 刘光复 宋守许 《机械设计与制造》 北大核心 2020年第1期21-25,共5页
主动再制造可以有效控制再制造毛坯状况的不确定性和复杂性,进一步推动再制造工程的工业化发展。结合主动再制造基本理论与内涵,提出基于相似性分析的优化设计方法。首先从生命周期角度,分析再制造时域决策中产品性能演化的影响,提取出... 主动再制造可以有效控制再制造毛坯状况的不确定性和复杂性,进一步推动再制造工程的工业化发展。结合主动再制造基本理论与内涵,提出基于相似性分析的优化设计方法。首先从生命周期角度,分析再制造时域决策中产品性能演化的影响,提取出产品的主动再制造设计需求。同时基于结构相似理论,分析相似性结构设计参数与其性能之间的定量映射关系,建立性能相似性分析模型。而后基于该模型,构建优化参数及目标函数,提出基于相似性分析的主动再制造优化设计方法。最后通过发动机连杆优化设计实验来验证该方法的有效性及可行性。 展开更多
关键词 结构相似 主动再制造 性能相似模型 优化设计
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Hybrid scheduling model and analysis of performance for switched industrial Ethernet 被引量:1
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作者 胡春华 吴敏 +1 位作者 刘国平 王四春 《Journal of Central South University of Technology》 EI 2007年第2期271-277,共7页
The fact that outburst traffic in industrial Ethemet was focused on that would bring self-similar phenomenon leading to the delay increase of the cyclical data, and a hybrid priority queue schedule model was proposed ... The fact that outburst traffic in industrial Ethemet was focused on that would bring self-similar phenomenon leading to the delay increase of the cyclical data, and a hybrid priority queue schedule model was proposed in which the outburst data was given the highest priority. Some properties of the self-similar outburst data were proved by network calculus, and its service curve scheduled by the switch was gained. And then the performance of the scheduling algorithm was obtained. The simulation results are close to those calculated by using network calculus model. Some results are of actual significance to the construction of switched industrial Ethernet. 展开更多
关键词 switched industrial Ethemet scheduling model SELF-SIMILAR network calculus
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