Journal of Xidian University ›› 2019, Vol. 46 ›› Issue (4): 43-48.doi: 10.19665/j.issn1001-2400.2019.04.007

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Method for design and analysis of the cable net structure for a hoop/column antenna

LIU Yang,LI Tuanjie,CHEN Congcong,TANG Yaqiong   

  1. School of Mechano-electronic Engineering, Xidian Univ., Xi’an 710071, China
  • Received:2019-04-10 Online:2019-08-20 Published:2019-08-15

Abstract:

In order to solve the difficult problem of the design of the complex structure of the hoop/column antenna cable net and the fpretension, the geometric configuration of the hoop/column antenna cable net is calculated according to the structure of the hoop/column antenna. Considering the complexity of the design problem with too many design variables, the form-finding design of cable net structure is divided into two parts, one for the front net and the other for the rear net. First, the design variables of the front net are merged according to the symmetry of the cable net structure. Then, the pretension of the front cable net is calculated using the force density method and some nodal coordinates of the cable net are updated. Next, the pretension of the remaining cables is calculated according to the nodal force balance equations and the previously obtained pretensions. Design results are verified by finite element software. Simulation results indicate that the mesh reflector designed by the method this paper describes has a high precision and that the cable net structure design method is effective.

Key words: deployable antennas, hoop/column antenna, cable net structure, force density method, pretension, structure design

CLC Number: 

  • V443.4