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VARYING: 作品数：620被引量：1134H指数：14; 导出分析报告; 相关领域：理学更多>>; 相关作者：唐风琴李泽慧陈进源黄卫清王寅更多>>; 相关机构：南京理工大学北京理工大学天津大学青岛大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Flow field control for 2-meter high-speed free-jet wind tunnel被引量：2: 《Chinese Journal of Aeronautics》2023年第10期77-89,共13页Jiayi TIAN Zhongwei LING Weijie LIU Jianhua Qin Neng XIONG; The 2-meter High-speed Free-jet Wind Tunnel(2 m HFWT)is China’s first large-scale open-jet trisonic wind tunnel.Compared to traditional closed high-speed wind tunnels,this wind tunnel is endowed with remarkable advan...; 关键词：Continuously varying Mach number Wind tunnel Flow field control Neural network Static pressure matching Feedforward control

Synchronous chirp mode extraction: A promising tool for fault diagnosis of rolling element bearings under varying speed conditions被引量：4: 《Chinese Journal of Aeronautics》2022年第1期348-364,共17页Xingxing JIANG Qiang HUANG Changqing SHEN Qian WANG Kun XU Jie LIU Juanjuan SHI Zhongkui ZHU; supported by the National Natural Science Foundation of China(Nos.51705349,51875376,51875375);the China Postdoctoral Science Foundation(No.2019T120456);the National Key Research;Development Program of China(No.2018YFB2003303);the Natural Science Foundation for Colleges;Universities in Jiangsu Province(No.20KJB460006);Open Research Fund Program of Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles.The authors also would like to thank the Lab E026 in University of Ottawa for data collection.; As critical components in modern aerospace productions,rolling element bearings(REBs)generally work under varying speed conditions,which brings great challenges to their operating health monitoring.Some novel time–fr...; 关键词：Envelope analysis Fault diagnosis Order tracking Rolling element bearing Varying speed

LPV modeling and controller design for body freedom flutter suppression subject to actuator saturation被引量：1: 《Chinese Journal of Aeronautics》2020年第10期2679-2693,共15页Wei TANG Yu WANG Jiawei GU Zhiwei SUN; the National Natural Science Foundation of China(No.61573289);Space Science and Technology Fund,and Natural Science Basic Research Plan in Shaanxi Province of China(No.2019JM042);Fundamental Research Funds for the Central Universities of China(No.3102019ZDHKY11)。; In recent years,the Active Flutter Suppression(AFS)employing Linear ParameterVarying(LPV)framework has become a hot spot in the research field.Nevertheless,the flutter suppression technique is facing two severe challe...; 关键词：Anti-windup compensation Flutter suppression Linear parameter-varying interpolation Model order reduction SATURATION

Impact time control using biased proportional navigation for missiles with varying velocity被引量：13: 《Chinese Journal of Aeronautics》2020年第3期956-964,共9页Guoxin SUN Qiuqiu WEN Zhiqiang XU Qunli XIA; A feasible guidance scheme with impact time constraint is proposed for attacking a stationary target by missiles with time-varying velocity.The main idea is to replace the constant velocity with the future mean veloci...; 关键词：GUIDANCE Homing missiles Impact time Proportional navigation guidance Time-varying velocity

Non-intrusive reduced-order model for predicting transonic flow with varying geometries被引量：6: 《Chinese Journal of Aeronautics》2020年第2期508-519,共12页Zhiwei SUN Chen WANG Yu ZHENG Junqiang BAI Zheng LI Qiang XIA Qiujun FU; supported by the National Natural Science Foundation of China(No.11802245).; A Non-Intrusive Reduced-Order Model(NIROM)based on Proper Orthogonal Decomposition(POD)has been proposed for predicting the flow fields of transonic airfoils with geometry parameters.To provide a better reduced-order ...; 关键词：Artificial Neural Network Domain DECOMPOSITION Geometric parameters Non-Intrusive Reduced-Order Model PROPER ORTHOGONAL DECOMPOSITION TRANSONIC flow

Two freedom linear parameter varying μ synthesis control for flight environment testbed被引量：8: 《Chinese Journal of Aeronautics》2019年第5期1204-1214,共11页Meiyin ZHU Xi WANG Zhihong DAN Song ZHANG Xitong PEI; To solve the problem of robust servo performance of Flight Environment Testbed(FET)of Altitude Ground Test Facilities(AGTF) over the whole operational envelope, a two-degree-offreedom μ synthesis method based on Line...; 关键词：ALTITUDE ground test facilities Flight environment TESTBED Linear parameter VARYING Robust CONTROL TWO-DEGREE-OF-FREEDOM μ Synthesis

IR radiation characteristics of rocket exhaust plumes under varying motor operating conditions被引量：16: 《Chinese Journal of Aeronautics》2017年第3期1101-1114,共14页Qinglin NIU Zhihong HE Shikui DONG; supported by the National Natural Science Foundation of China(No.51576054); The infrared（IR） irradiance signature from rocket motor exhaust plumes is closely related to motor type,propellant composition,burn time,rocket geometry,chamber parameters and flight conditions.In this paper,an infr...; 关键词：Afterburning exhaust plume Chemical reaction Ignition and cutoff Infrared radiation Solid rocket motor Propellant mixture ratio

Relay selection in cooperative communication systems over continuous time-varying fading channel被引量：1: 《Chinese Journal of Aeronautics》2017年第1期391-398,共8页Geng Ke Gao Qiang Fei Li Xiong Huagang; In this paper, we study relay selection under outdated channel state information（CSI） in a decode-and-forward（DF） cooperative system. Unlike previous researches on cooperative communication under outdated CSI, we ...; 关键词：Channel state information Cooperative communication Fading RELAYS Wireless networks

A systematic method of smooth switching LPV controllers design for a morphing aircraft被引量：19: 《Chinese Journal of Aeronautics》2015年第6期1640-1649,共10页Jiang Weilai Dong Chaoyang Wang Qing; supported by the National Natural Science Foundation of China(Nos.61273083 and 61374012); This paper is concerned with a systematic method of smooth switching linear parameter- varying （LPV） controllers design for a morphing aircraft with a variable wing sweep angle. The morphing aircraft is modeled as a...; 关键词：Morphing aircraft Parameter set division：Robust control Smooth switching Switched linear parameter-varying system

Gray bootstrap method for estimating frequency-varying random vibration signals with small samples被引量：15: 《Chinese Journal of Aeronautics》2014年第2期383-389,共7页Wang Yanqing Wang Zhongyu Sun Jianyong Zhang Jianjun Zissimos Mourelato; supported by Aviation Science Foundation of China (No. 20100251006);the Technological Foundation Project (No. J132012C001); During environment testing, the estimation of random vibration signals （RVS） is an important technique for the airborne platform safety and reliability. However, the available meth- ods including extreme value envel...; 关键词：Dynamic process ESTIMATION Frequency-varying Gray bootstrap method Random vibration signalsSmall samples

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