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Advanced Photonics 2024年第1期6卷 115-125页

作者： Bingxin Xu Yangyang Wan xinyu fan Zuyuan He Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and NetworksDepartment of Electronic EngineeringShanghaiChina Max-Planck Institute of Quantum Optics Hans-Kopfermann-Straûe 185748 GarchingGermany

Spectroscopy is the basic tool for studying molecular physics and realizing biochemical ***,it is challenging to realize sub-femtometer resolution spectroscopy over broad *** and high-resolution spectroscopy with calibrated optical frequency is demonstrated by bridging the fields of speckle pattern and electro-optic frequency comb.A wavemeter based on a whispering-gallery-mode barcode is proposed to link the frequencies of a probe continuous-wave laser and an ultrastable *** ultrafine electro-optic comb lines are generated from the probe laser to record spectrum of sample with sub-femtometer *** bandwidth is a thousandfold broader than comb bandwidth,by sequentially tuning the probe laser while its wavelength is *** approach fully exploits the advantages of two fields to realize 0.8-fm resolution with a fiber laser and 80-nm bandwidth with an external cavity diode *** spectroscopic measurements of an ultrahigh Q-factor cavity and gas molecular absorption are experimentally *** compact system,predominantly constituted by few-gigahertz electronics and telecommunication components,shows enormous potential for practical spectroscopic applications.

关键词： frequency comb reconstructive wavemeter spectroscopy

Study on frictional behavior of SiC_(f)/SiC composite clad tube clamping condition under nuclear irradiation

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Friction 2024年第5期12卷 919-938页

作者： Chenglong XIAO Liangliang SHEN Tianqi ZHU Jianbo TANG Ximing XIE xinyu fan Jian XU Zhiying REN School of Mechanical Engineering Zhejiang University of TechnologyHangzhou310023China Engineering Laboratory of Advanced Energy Materials Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo315201China State Key Laboratory of Fine Chemicals Liaoning High-Performance Polymer Engineering Research CenterSchool of Chemical EngineeringDalian University of TechnologyDalian116024China School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou350116China School of Computer Science and Technology Shandong UniversityQingdao266237China Aviation Industry Corporation of China Ltd.Beijing100028China

Silicon carbide fiber reinforced silicon carbide matrix(SiC_(f)/SiC)composite is the key cladding material of nuclear fuel,which determines the safety and reliability of nuclear fuel storage and *** replacement of its storage and transportation scenario needs to be completed by the manipulator,but the application of SiC_(f)/SiC wear,fracture,and nuclear leakage in the snatching process of brittle-flexible-rigid contact in the irradiation environment has been seriously restricted due to unclear understanding of the damage ***,the effects of irradiation dose and clamping load on the friction characteristics of the contact interface between SiC_(f)/SiC clad tube are studied in this paper,and the effects of irradiation parameters and clamping force on the static friction coefficient of the contact interface between the clad tube and flexible nitrile are *** on the Greenwood-Williamson tribological model,a numerical model of the shape and structure of the contact micro-convex at the micro-scale of the clamping interface is constructed by introducing the multi-surface integral,and finally verified by *** research results show that there is a unique“Irradiation suppression zone”under the clamping condition of SiC_(f)/SiC cladding tube under the nuclear irradiation environment,and the growth of static friction coefficient slows down until stagnates after irradiation reaches a certain extent(600 kGy),and there will be a decline when the irradiation dose continues to increase,among which the clamping force of 15.2 N within the irradiation interval of 1,000 kGy can meet the safety of nuclear environment *** results of this paper can provide an important theoretical basis and application guidance for the safe operation of SiC_(f)/SiC cladding tubes in the storage and transportation clamping process.

关键词： SiC_(f)/SiC Clad tube nuclear irradiation conditions Greenwood-Williamson tribological model multi-surface integral

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多机理融合分布式光纤传感技术研究

光学学报 2024年第1期44卷 153-164页

作者：黄麟景周霄樊昕昱王峰张旭苹何祖源上海交通大学区域光纤通信网与新型光通信系统国家重点实验室上海200240 南京大学智能光感知与调控技术教育部重点实验室江苏南京210023 南京大学现代工程与应用工程学院江苏南京210023

为了解决传统分布式光纤传感系统只针对单一变量进行测量的问题,研究人员近年来结合多种光纤传感测量机理,提出了一系列多机理融合的分布式光纤传感系统,使用同一系统实现多种参量的测量。综述了近年来多机理融合的分布式光纤传感技术,... 详细信息

为了解决传统分布式光纤传感系统只针对单一变量进行测量的问题,研究人员近年来结合多种光纤传感测量机理,提出了一系列多机理融合的分布式光纤传感系统,使用同一系统实现多种参量的测量。综述了近年来多机理融合的分布式光纤传感技术,从不同散射机理相互结合的角度进行分类,介绍了不同的多机理融合的分布式光纤传感系统及其性能指标,并对其进行总结对比,最后展望了多机理融合的分布式光纤传感技术的发展前景。

关键词：传感器光纤散射多机理光纤光学光纤传感

基于模糊滑模控制的直驱式波浪发电装置最大功率控制方法

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水下无人系统学报 2024年第1期32卷 48-56页

作者：范新宇孟昊江苏科技大学能源与动力学院江苏镇江212100

海洋波浪能是一种新型清洁能源,为提高直驱式波浪发电系统的发电功率和波浪能转换效率,针对目前普遍使用的比例-积分-微分(PID)控制方法存在输出纹波较大、系统稳定性较差的问题,提出基于模糊滑模控制的最大功率控制方法,根据运行状态... 详细信息

海洋波浪能是一种新型清洁能源,为提高直驱式波浪发电系统的发电功率和波浪能转换效率,针对目前普遍使用的比例-积分-微分(PID)控制方法存在输出纹波较大、系统稳定性较差的问题,提出基于模糊滑模控制的最大功率控制方法,根据运行状态实时调整趋近律参数,在实现最大功率跟踪的同时削弱输出纹波,减小跟踪误差,提高系统控制品质。文中以永磁直线发电机(PMLG)作为发电装置,建立系统动力学模型,并通过快速傅里叶变换方法预估不规则波浪主频,设计满足最大功率策略的期望电流跟踪曲线;在此基础上,将常规PID、滑模控制方法与所提出的模糊滑模最大功率控制方法进行仿真对比,结果表明:模糊滑模控制方法在功率上有所提升且具有更好的准确性和稳定性。

关键词：直驱式波浪发电系统永磁直线发电机最大功率模糊滑模控制

Distributed H_(∞)Consensus Problem for First-Order Multi-Agent Systems with Antagonistic Interactions and Nonconvex Constraints

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Journal of Systems Science & Complexity 2023年第2期36卷 540-554页

作者： fan xinyu CHEN Shujin WANG Xiaoli School of Automation Central South UniversityChangsha 410075China

This paper investigates the distributed H_(∞)consensus problem for a first-order multiagent system where both cooperative and antagonistic interactions *** the presence of external disturbances,a distributed control algorithm using local information is addressed and a sufficient condition to get the H_(∞)control gain is obtained,which make the states of the agents in the same group converge to a common point while the inputs of each agent are constrained in the nonconvex ***,a numerical simulation is exhibited to illustrate the theory.

关键词： Antagonistic interactions H_(∞)control multi-agent systems nonconvex constrained consensus problem

UAV-Aided Data and Energy Integrated Network: System Design and Prototype Development

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China Communications 2023年第7期20卷 290-302页

作者： xinyu fan Jie Hu Kun Yang School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute(Quzhou) University of Electronic Science and Technology of ChinaQuzhou 324000China

Terminal devices deployed in outdoor environments are facing a thorny problem of power *** and energy integrated network(DEIN)is a promising technology to solve the problem,which simultaneously transfers data and energy through radio frequency ***-of-the-art researches mostly focus on theoretical *** contrast,we provide a complete design and implementation of a fully functioning DEIN system with the support of an unmanned aerial vehicle(UAV).The UAV can be dispatched to areas of interest to remotely recharge batteryless terminals,while collecting essential information from ***,the UAV uploads the information to remote base *** system verifies the feasibility of the DEIN in practical applications.

关键词： data and energy integrated network(DEIN) internet of things(IoT) simultaneous wire-less information and power transfer(SWIPT) wireless energy transfer(WET) prototype

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铜基载氧体的焦炉煤气化学链燃烧特性

洁净煤技术 2024年第2期30卷 244-256页

作者：范心瑜卢春强左慧琮李志强江磊李孔斋昆明理工大学冶金与能源工程学院云南昆明650093 冶金节能减排教育部工程研究中心云南昆明650093

焦炉煤气(COG)是炼焦过程产生的主要副产品,含有复杂的气体成分(CO、H_(2)、CH_(4)、CO_(2)),化学链燃烧是一种可实现COG高效转化与高纯CO_(2)捕集的技术。通过溶胶凝胶法制备了一系列x(%)CuO/Ce-Zr-O(x=30、50、70、90)载氧体用于COG... 详细信息

焦炉煤气(COG)是炼焦过程产生的主要副产品,含有复杂的气体成分(CO、H_(2)、CH_(4)、CO_(2)),化学链燃烧是一种可实现COG高效转化与高纯CO_(2)捕集的技术。通过溶胶凝胶法制备了一系列x(%)CuO/Ce-Zr-O(x=30、50、70、90)载氧体用于COG化学链燃烧反应特性研究。XRD表明,x(%)CuO/Ce-Zr-O载氧体物相由CuO和Ce_(0.67)Zr_(0.33)O_(2)固溶体组成。由于Zr^(4+)进入CeO_(2)晶格中,在617 cm^(-1)处出现明显的氧空位Raman特征峰。H_(2)-TPR、CO-TPR、CH_(4)-TPR和COG-TPR结果表明加入Ce-Zr-O固溶体促使铜物种低温释氧能力增强。800℃下,CuO样品CO_(2)捕集率为34%,添加10%Ce_(0.67)Zr_(0.33)O_(2)后CO_(2)捕集率增至100%。经50次氧化还原循环后,CuO样品性能大幅降低,而90CuO/Ce-Zr-O样品的反应性能和物相结构未发生明显变化,表明CuO和Ce_(0.67)Zr_(0.33)O_(2)之间的相互作用增强了铜物种的释氧能力和循环稳定性。此研究有助于拓宽COG利用途径。

关键词：焦炉煤气化学链燃烧循环反应性能 CO_(2)捕集

基于数字化设计平台的固定管板换热器三维参数化设计

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中国特种设备安全 2024年第3期40卷 50-53,79页

作者：吴量任超樊新宇华陆工程科技有限责任公司西安710065

本文介绍了基于数字化设计平台的固定管板换热器三维参数化设计程序开发及工程应用情况。数字化设计平台通过数据传递与数据链建设,实现正向设计和数据共享,旨在提高压力容器设计质量和效率,并实现压力容器全寿命周期的协同管理。参数... 详细信息

本文介绍了基于数字化设计平台的固定管板换热器三维参数化设计程序开发及工程应用情况。数字化设计平台通过数据传递与数据链建设,实现正向设计和数据共享,旨在提高压力容器设计质量和效率,并实现压力容器全寿命周期的协同管理。参数化设计通过将设备的计算逻辑、设计方法和标准文件等建立程序关联,通过自主开发的相关子程序,实现从工艺数据到三维模型、三维模型到图纸的智能化设计。本文以固定管板换热器为例,分析了基于数字化设计平台的三维参数化设计的基本思路,明确了基于数字化设计平台的三维参数化设计对于压力容器智能化设计及数字化转型的有效性和良好应用效果。本文对压力容器智能化设计和数字化转型提供一定参考。

关键词：数字化设计三维参数化设计压力容器固定管板换热器

Simplified single-end Rayleigh and Brillouin hybrid distributed fiber-optic sensing system

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Science China(Information Sciences) 2023年第2期66卷 291-292页

作者： Linjing HUANG Zuyuan HE xinyu fan State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic EngineeringShanghai Jiao Tong University Peng Cheng Laboratory

Dear editor,Distributed fiber-optic sensing(DFOS) technology has been widespread applications in many fields. It is mainly realized by analyzing three kinds of backscattering in optical fibers: Rayleigh, Brillouin, and Raman [1]. Conventionally,the sensing system can only measure one type of parameter:a static one like temperature and strain or a dynamic one like vibration. However, for several applications, such as railway safety monitoring systems, both static and dynamic parameters must be measured simultaneously not only for early warning applications but also for collecting static signals to perform long-term analysis.

关键词： Hybrid systems

Sub-femtometer-resolution absolute spectroscopy with sweeping electro-optic combs

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Opto-Electronic Advances 2022年第12期5卷 35-43页

作者： Bingxin Xu xinyu fan Shuai Wang Zuyuan He State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Optical frequency comb with evenly spaced lines over a broad bandwidth has revolutionized the fields of optical metrology and ***,we propose a fast interleaved dual-comb spectroscopy with sub-femtometer-resolution and absolute frequency,in which two electro-optic frequency combs are ***-modulated stabilized laser enables ultrahigh resolution of 0.16 fm(or 20 k Hz in optical frequency)and single-shot measurement in 90 *** 20 million points are recorded spanning 3.2 nm(or 400 GHz)bandwidth,corresponding to a spectral sampling rate of 2.5×10^(8)points/s under ***,considering the trade-off between the measurement time and spectral resolution,a fast single-shot measurement is also realized in 1.6 ms with 8 fm(or 1 MHz)*** demonstrate the 25-averaged result with 30.6 d B spectral measurement signal-to-noise ratio(SNR)by reducing the filter bandwidth in *** results show great prospect for precise measurement with flexibly fast refresh time,high spectral resolution,and high SNR.

关键词： dual-comb spectroscopy optical frequency comb interferometry