大型天线的俯仰架结构

摘要

In order to study the role of elevation truss structure in structure design of big antenna, force transferring path and working principle of are described in this paper, as well as the influence on main surface accuracy and homology effect.Some protects validates that the umbrella structure in elevation truss structure plays a positive role in homology design of big antenna.Kinds of elevation truss structure of big antennas are listed in this paper, from which we can get the strengths and weaknesses of them.General design principles about elevation structure are suggested, which will be a valid reference in elevation truss structure design of big antenna in future.%为了研究俯仰架结构在大型天线结构设计中的作用, 文中阐述了俯仰架结构的传力途径和工作原理, 以及其对大型天线主面精度和保型效果的影响, 并通过应用实例验证了俯仰架结构中的伞形支撑在大型天线保型设计中发挥的作用.文中列举出几种典型的俯仰架结构形式, 总结了各自的优缺点, 提出了大型天线俯仰架的一般设计原则, 对大型天线的结构设计具有一定的参考意义.