大射电望远镜健康监测系统的设计
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摘要
500m口径的大型球面射电望远镜(FAST)是我国在建的世界上最大的单口径射电望远镜。其馈源支撑系统具有空间结构庞大、组成复杂、控制困难的特点,因此急需对其运行过程进行健康监测。健康监测力求对FAST馈源支撑系统结构整体行为的实时监控和对结构状态的智能化评估。本文较系统地阐述大射电望远镜健康监测的新概念,并从FAST工程发展的角度探讨大型射电望远镜监测系统设计的有关问题,以期为监测系统的开发提供借鉴。
Five-hundred-meter Aperture Spherical radio Telescope(FAST for short) is the largest single aperture radio telescope that we are building now in the world.The feed support system of FAST has characteristics with huge structure,complicated mechanism and difficult to control,so it is urgent to monitor the movement condition of feed support system.Health monitoring system is to obtain the information on FAST condition through online monitoring of the structural performance.In this paper,the connotation of FAST health monitoring is pointed out in an extended sense.Related issues on the design of monitoring system,including the principles of system design and the monitoring items for FAST are discussed.
Five-hundred-meter Aperture Spherical radio Telescope(FAST for short) is the largest single aperture radio telescope that we are building now in the world.The feed support system of FAST has characteristics with huge structure,complicated mechanism and difficult to control,so it is urgent to monitor the movement condition of feed support system.Health monitoring system is to obtain the information on FAST condition through online monitoring of the structural performance.In this paper,the connotation of FAST health monitoring is pointed out in an extended sense.Related issues on the design of monitoring system,including the principles of system design and the monitoring items for FAST are discussed.
引文
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[8]KY Wong.Monitoring of wind Load and response for cable-supported bridgesin HongKong[C].Health Monitoring and Man-agement of Civil in Infrastructure Systems,Proceedings of SPIEVol.4337,2001,292-303.
[9]欧进萍.重大工程的智能监测与健康诊断[J].工程力学,2002(增刊),44-53.
[10]李宏男,李东升.土木工程结构安全性评估、健康监测及诊断述评[J].地震工程与工程振动,2002,22(3):82-90.
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[12]李宏男,高东伟,伊廷华.土木工程结构健康监测系统的研究状况与进展[J].力学进展,2008,38(2):151-166.
[2]Housner G W,Bergman L A,Caughey T K,et al.Structuralcontrol:past,present and future[J].Journal of EngineeringMechanics,1997,123(9):897-971.
[3]郭玲,张利.桥梁结构健康监测[J],华东公路,2002(2):34-35.
[4]Shahawy M A,Arocklasamy M.Field instrument to study thetime-dependent behavior in Sunshine Skyway Bridge[J].Journalof Bridge Engineering,ASCE,Vol.l(2),1996.
[5]Andersen E Y,Pedersen.Structural monitoring of the great belteast bridge[C].Proceedings of the Third Symposiumon StraitCrossing,Edited by Jon Krokeborg Balkema,et,1994,54-62.
[6]Wong KY.Planning andimplementation of the structural healthmonitoring systemfor cable-supported bridgesin HongKong[C].Nondestructive Evaluation of Highways,Utilities,and PiPelinesIV,Proceedings of SPIE Vol.3995,2000,PP266-275.
[7]Wong K Y,etc.Structural health monitoring results on TsingMa,Kapshui Mun and Ting Kau Bridges[C].Nondestructive E-valuation of Highways,Utilities,and PiPelines IV,Proceedings ofSPIE Vol.3995,2000,288-289.
[8]KY Wong.Monitoring of wind Load and response for cable-supported bridgesin HongKong[C].Health Monitoring and Man-agement of Civil in Infrastructure Systems,Proceedings of SPIEVol.4337,2001,292-303.
[9]欧进萍.重大工程的智能监测与健康诊断[J].工程力学,2002(增刊),44-53.
[10]李宏男,李东升.土木工程结构安全性评估、健康监测及诊断述评[J].地震工程与工程振动,2002,22(3):82-90.
[11]张启伟.大型桥梁健康监测概念与监测系统设计[J].同济大学学报,2001,29(1),65-69.
[12]李宏男,高东伟,伊廷华.土木工程结构健康监测系统的研究状况与进展[J].力学进展,2008,38(2):151-166.
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