A discussion of objective function representation methods in global optimization

Non-convex optimization can be found in several smart manufacturing systems. This paper presents a short review on global optimization (GO) methods. We examine decomposition techniques and classify GO problems on the basis of objective function representation and decomposition techniques. We then explain Kolmogorov’s superposition and its application in GO. Finally, we conclude the paper by exploring the importance of objective function representation in integrated artificial intelligence, optimization, and decision support systems in smart manufacturing and Industry 4.0.     

水电机组控制设备远程运营维护系统研究与实践

阐述了水电机组控制设备远程运营维护系统的研究背景及实施的意义,将工业4.0引入水电机组控制设备制造行业,借力“互联网+”设备厂家,实现其在水电机组控制设备中的应用。利用Nat穿透技术,建立P2P的数据交换,解决UDP协议下大数据流的分解/组装及加密问题,使现场设备可以直接透明地连接到服务端,减少客户的再投资。开发了“水电机组控制设备远程运营维护系统”,实现了水电机组控制设备的远程监视、诊断、运行、维护、培训和技术服务等,值得大力推广应用。     

土工格栅加筋边坡极限荷载影响因素的灵敏度分析

本文利用专业岩土软件FLAC4.0进行建模、运算,采用正交试验方法安排试验方案和处理试验数据。对于影响加筋边坡的各种因素(第一层埋深、筋材长度、坡角等等),试验前后进行了全面的数值分析,得出了各种影响因素对极限荷载的灵敏度。最后,利用数值试验的数据画出各种因素作用下的极限荷载对比图。     

嵌入式系统中函数发生器用户图形界面的实现

在嵌入式系统中实现用户图形化(GUI)已经成为一种趋势.本文简要介绍了应用在函数/任意波形发生器上的GU的实现,重点分析了GUI的设计思路,并简单介绍了基于Visual DSP 4.0 Kernel(VDK)用户界面实现原理以及用户界面软件设计结构和流程.实验表明,该设计能够满足客户目前及未来测试需求的多用途解决方案.实现结果表明,该设计方案合理、可靠,并具有十分方便的用户可操作性.     

服务4.0与智能服务——以能源智能服务为例

首先介绍了服务4.0产生的背景,提出其核心是人−机−物三者的深度融合,并与服务1.0、2.0和3.0三个阶段相比分析了其根本转变;简要介绍了服务4.0与智能服务的应用和研究现状;总结了智能服务的内涵及其关键特征,并针对能源智能服务的多维内涵进行了分析;构建了智能服务系统四维表达模型;分析了服务4.0时代智能服务系统构建所面临的机遇和挑战;最后以能源智能服务为例,介绍了服务4.0与智能服务的应用前景。     

Measurement and analysis of reflector reactivity worth by replacing stainless steel with zirconium at the fast critical assembly (FCA)

A reflector reactivity worth was measured by replacing stainless steel with zirconium at the FCA. The experimental result of the positive reflector reactivity worth demonstrates the effectiveness of the zirconium reflector compared with the SS reflector in the fast reactor core. This paper also focuses on the validation of standard calculation methods used for fast reactors with JENDL-4.0. As a result, it is confirmed that the standard calculation methods for the reflector reactivity worth show agreement within the experimental error.     

Neutron cross section sensitivity analysis of UO2 and MOX core physics experiments on light water reactors

The perturbation theory based on the transport calculation has been applied to study sensitivity of neutron multiplication factors (k_eff's) to neutron cross sections used for the reactivity analysis of UO₂ and MOX core physics experiments on light water reactors. The studied cross sections were neutron capture, fission and elastic scattering cross sections, and a number of fission neutrons, ν. The obtained sensitivities were multiplied to relative differences in the cross sections between JENDL-4.0 and JENDL-3.3 in order to estimate the reactivity effects. The results show that the increase in k_eff, 0.3%Δk/kk′, from JENDL-3.3 to JENDL-4.0 for the UO₂ core is mainly attributed to the decreases in the capture cross sections of ²³⁸U. On the other hand, there are various contributions from the differences in the cross sections of U, Pu, and Am isotopes for the MOX cores. The major contributions to increase in k_eff are decreases in the capture cross sections of ²³⁸U,²³⁸Pu, ²³⁹Pu, and those to decrease in k_eff are decreases in ν of ²³⁹Pu and increases in the capture cross sections of²⁴¹Am. They compensate each other, and the difference in k_eff between JENDL-3.3 and JENDL-4.0 is less than 0.1%Δk/kk′ and relatively small.     

Evaluation of Neutron Nuclear Data on Bromine and Krypton Isotopes for JENDL-4.0

Neutron nuclear data on ^79,81Br and ^{78,80,82,83,84,85,86}Kr have been evaluated for the evaluated nuclear data library JENDL-4.0 in the energy region from 10^?5 eV to 20 MeV. The resolved resonance parameters were adjusted so as to reproduce recommended or measured thermal capture cross sections for some isotopes. The statistical model was applied to calculate the cross sections above the resolved resonance region. In the calculations, coupled-channel optical model parameters were used for neutrons. Preequilibrium and direct-reaction processes were taken into account in addition to the compound process. The present evaluation is consistent with available experimental data. The evaluated results were compiled into JENDL-4.0.     

Sensing,smart and sustainable product development (S3 product) reference framework

Enterprises must become ‘sensing, smart and sustainable (S³)’ to face global challenges related to local, national and global market dynamics. Therefore, reconceptualisation and redesign in these enterprises must accommodate emergent technologies, new practices and strategies. In this sense, enterprises have used new product development as a strategy for remaining competitive in the marketplace; thus, they can provide a new generation of products offering solutions to contemporary social problems and responding to changing consumer demands. These new-generation products are mostly technology-based and consider sustainable objectives. In this context, concepts such as sensing, smart and sustainable products (S³ products) have emerged to satisfy different social requirements. Therefore, this work focuses on providing a reference framework that presents a systematic process for the development of S³ products. This reference framework is based on the integrated product, process and manufacturing system development reference model. The main objective of this work is to fill the gap vis-à-vis the current lack of design roadmaps that permit the development of this new generation of products in S³ enterprises. The development of a reconfigurable micro-machine tool is presented as that of an S³ product.     

智能制造能力成熟度模型研究

主要介绍了智能制造发展现状以及国内外针对智能制造能力评价的相关研究,同时介绍了智能制造能力成熟度模型在相关行业应用研究情况.分析了我国智能制造能力成熟度模型的优缺点,并结合精益智能制造理论提出了一种三阶智能制造能力成熟度模型,便于从不同阶段、维度对企业进行等级评定.