Effects of the Hot Alignment of a Power Unit on Oil-Whip Instability Phenomena

Figure 4

Comparison between the experimental vibration signal measured at bearing no. 1 in the 𝑋 and 𝑌 directions, during an instability onset, and the respective regenerated signals obtained considering the harmonic orders 0.26X, 0.5X, 1X, and 2X reported in Table 1.