| Popis: |
In order to develop models for space flight cables, the factors that affect the dynamic response of the cables must be determined. Toward this goal, this work presents the results from a set of experimental tests on 1x18 helically twisted cables made of 26 AWG insulated wire. The excitation method, tension in the cable, zip tie attachment method, and length and tension of the excitation string were varied for a single section of cable. In addition, five sections of cable were tested to investigate the variability within a single type of cable. The variability between the cable sections was as great as the variation due to any single test set up alteration, which indicates that a statistical approach may be necessary for cable characterization. Neither the excitation method nor length or tension in the excitation string afected the cable response significantly. Frequency response did change with changes in cable tension, as well as zip tie tightness. Thus, for best repeatability, cable tension and zip tie tightness should be controlled. |
