Influence of distance between the first sensor and support in determining tension of fixed-end cable using multiple synchronized vibration measurement

Abstract Non-destructive evaluation has been developed to identify cable tension for any end-rotational stiffness condition. One of the existing methods uses multiple vibration measurements. This paper aims study effect shifting closest sensor support in measurements through numerical simulation. A fixed at both ends vibrates under artificial random excitation is simulated. Three cases five synchronized signal recording arrangements are applied cable, where distance from first recorder (d 1 ) different each case. The d Case 1, 2, and 3 d, 2d, 3d, respectively, between recorder, taken as 7% total length same all cases. Cable dynamical properties analyzed using a stochastic subspace identification method, effective lengths figured out by curve fitting. Under frequency range, seven obtained while eight detected Cases 2 3. Besides, it can be concluded that generates larger errors predicting compared other