Embryonic Array(EA) with different configuration methods will directly affect its reliability and hardware consumption. At present, EA configuration design is lack of quantitative analysis method. In order to reasonab...Embryonic Array(EA) with different configuration methods will directly affect its reliability and hardware consumption. At present, EA configuration design is lack of quantitative analysis method. In order to reasonably optimize EA configuration design, an EA configuration optimization design method is proposed, which is based on the constraints of EA hardware consumption and reliability. Through the analysis of EA working process and composition, quantitative analysis of EA reliability and hardware consumption are completed. Based on the constraints of EA hardware consumption and reliability, the mathematical model of EA configuration optimization design is established, which transfers EA configuration optimization design into an integer nonlinear programming model problem. According to the difference of the fitness value of individual waiting for mutation in population, adaptive mutation operator and crossover operator are selected, and a novel Modified Adaptive Differential Evolution(MADE) algorithm is proposed,which is used to solve EA configuration optimization design problem. Simulation experiments and analysis indicate that the MADE is able to effectively improve the speed, accuracy and stability of algorithm. Moreover, the proposed EA configuration optimization design method can select the most reasonable EA configuration design, and play an important guiding role in EA optimization design.展开更多
基于2017年至2022年Web of Science核心合集数据库中数字孪生可靠性主题相关的文献,通过CiteSpace软件进行可视化科学计量分析,尝试解析数字孪生可靠性研究的热点演进和前沿动向。研究发现:(1)中国、美国及部分欧洲发达国家在数字孪生...基于2017年至2022年Web of Science核心合集数据库中数字孪生可靠性主题相关的文献,通过CiteSpace软件进行可视化科学计量分析,尝试解析数字孪生可靠性研究的热点演进和前沿动向。研究发现:(1)中国、美国及部分欧洲发达国家在数字孪生可靠性领域的研究较多,与他国合作关系较好,该领域的重要英文期刊主要涉及电气电子工程、计算机科学与技术、工程制造;(2)时代背景与要求、理论基础与支持、前沿技术与应用是数字孪生可靠性研究的热点,供应链安全性、数据支撑、标准指引、应用成熟度、政企校联动是未来研究的重要方向;(3)数字孪生可靠性研究要与新兴技术同频共振、紧密融合,实现创新发展,以应对瞬息万变的社会和市场需求。展开更多
To overcome the excessive computational cost and/or bad accuracy of traditional approaches,the probabilistic density evolution method(PDEM) is introduced.The dynamic reliability of a double-layer cylindrical latticed ...To overcome the excessive computational cost and/or bad accuracy of traditional approaches,the probabilistic density evolution method(PDEM) is introduced.The dynamic reliability of a double-layer cylindrical latticed shell is evaluated by applying PDEM and Monte Carlo Method(MCM) respectively,and four apparent wave velocities(100 m/s,500 m/s,800 m/s and 1 200 m/s) and five thresholds(0.1 m,0.2 m,0.3 m,0.4 m and 0.5 m) are taken into consideration.Only the difference between threshold and maximal deformation...展开更多
基金supported by the National Natural Science Foundation of China(Nos.61372039 and 61601495)
文摘Embryonic Array(EA) with different configuration methods will directly affect its reliability and hardware consumption. At present, EA configuration design is lack of quantitative analysis method. In order to reasonably optimize EA configuration design, an EA configuration optimization design method is proposed, which is based on the constraints of EA hardware consumption and reliability. Through the analysis of EA working process and composition, quantitative analysis of EA reliability and hardware consumption are completed. Based on the constraints of EA hardware consumption and reliability, the mathematical model of EA configuration optimization design is established, which transfers EA configuration optimization design into an integer nonlinear programming model problem. According to the difference of the fitness value of individual waiting for mutation in population, adaptive mutation operator and crossover operator are selected, and a novel Modified Adaptive Differential Evolution(MADE) algorithm is proposed,which is used to solve EA configuration optimization design problem. Simulation experiments and analysis indicate that the MADE is able to effectively improve the speed, accuracy and stability of algorithm. Moreover, the proposed EA configuration optimization design method can select the most reasonable EA configuration design, and play an important guiding role in EA optimization design.
文摘基于2017年至2022年Web of Science核心合集数据库中数字孪生可靠性主题相关的文献,通过CiteSpace软件进行可视化科学计量分析,尝试解析数字孪生可靠性研究的热点演进和前沿动向。研究发现:(1)中国、美国及部分欧洲发达国家在数字孪生可靠性领域的研究较多,与他国合作关系较好,该领域的重要英文期刊主要涉及电气电子工程、计算机科学与技术、工程制造;(2)时代背景与要求、理论基础与支持、前沿技术与应用是数字孪生可靠性研究的热点,供应链安全性、数据支撑、标准指引、应用成熟度、政企校联动是未来研究的重要方向;(3)数字孪生可靠性研究要与新兴技术同频共振、紧密融合,实现创新发展,以应对瞬息万变的社会和市场需求。
基金Supported by National Natural Science Foundation of China (No.50478094)
文摘To overcome the excessive computational cost and/or bad accuracy of traditional approaches,the probabilistic density evolution method(PDEM) is introduced.The dynamic reliability of a double-layer cylindrical latticed shell is evaluated by applying PDEM and Monte Carlo Method(MCM) respectively,and four apparent wave velocities(100 m/s,500 m/s,800 m/s and 1 200 m/s) and five thresholds(0.1 m,0.2 m,0.3 m,0.4 m and 0.5 m) are taken into consideration.Only the difference between threshold and maximal deformation...
