索结构外文文献 结构参数变化对快速索网结构索力的影响.pdf

Check for updates Hindawi Publishing Corporation Advances in Mechanical Engineering Volume 2014 Article ID 912158 7 pages dx.doi.org/10.1155/2014/912158 Research Article The Effects of Structural Parameter Variation on Cable Force of Fast Cable-Net Structure Qiming Wang Peng Jiang and Xu Kong1 2 National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China 2 University of Chinese Academy of Sciences Beijing 100039 China Correspondence should be addressed to Xu Kong:kongxulo@mails.gucas.ac.cn Received 20 November 2013;Accepted 6 January 2014;Published 23 February 2014 Academic Editor:Xiaoqiang Tang Copyright 2014 Qiming Wang et al.This is an open access article distributed under the Creative Commons Attribution Licensewhich permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Five-hundred-meter aperture spherical radio telescope(FAST)is supported by a cable-net structure which enables its surface to form a real-time paraboloid by active control.FAST project is currently in the construction and implementation stage.Howeverthere are always a considerable amount of errors that existed in practice which may result in the deviation of the structure from its ideal model or design.Therefore structural parameter sensitivity analysis was discussed which is indispensable.However such deformation operation would lead to about 500 MPa of fatigue stress variation amplitude in the cable-net struct...