Analysis and Experimental Study on the Friction Force at the Binding Point of Flexible Cable on Satellite

Abstract

Mainly for the problem that the friction force generated by the existing process of binding, fixing and fastening the flexible cable on the satellite is unknown, the friction force analysis and experimental research on the binding point of the flexible cable are carried out. The equivalent model of the cable bundle bound by nylon cable ties is established, the force on the binding point is analyzed, and the empirical formula for calculating the friction force at the binding point is established. The formula shows that the friction force is related to the cable bundle diameter, the number of winding cycles of silicone rubber tape, the width of nylon cable ties, and the binding force. The friction force tests of the cable diameter of 5.06 mm, 8.02 mm, 24.02 mm, 38.04 mm under different winding turns of tape were carried out, which was compared with the theoretical calculation value. It is concluded that the calculation accuracy of the theoretical model is more than 95%, which can estimate the actual friction force value accurately. This provides a reference and basis for the theoretical and experimental research on the friction force of the flexible cable binding point on satellite.

Keywords

flexible cable / binding point / equivalent model / friction force / experimental study