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《固体力学学报：英文版》
>MODES COMPUTATION AND ANALYSIS FOR LONG MULTI-SPAN BUNDLE CONDUCTORS OF POWER TRANSMISSION LINES WITH GALLOPING CONTROL DEVICES
MODES COMPUTATION AND ANALYSIS FOR LONG MULTI-SPAN BUNDLE CONDUCTORS OF POWER TRANSMISSION LINES WITH GALLOPING CONTROL DEVICES
A new type of element which is suitable for solving the modes of the galloping long multi-spanbundle conductor structures is presented.The element is composed of all sub-conductor segments betweentwo spacers.Based on the linearized governing differential equations of the conductors,the mass matrix andstiffness matrix of the element in consideration of the constrained relations imposed on the conductors byspacers are derived.The dynamic characteristics of the galloping control devices can be directly added to theelement.The modes for an actual power line structure are computed by using the element formula and FEMprocedures,where seven cases of different galloping control device allocations are considered.Comparedwith the measured data,the method is shown to be reliable and effective.Analysis and discussions of thecomputational results are given.Some hints that are helpful to further investigation of galloping are also ob-tained.
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