Dynamic Characteristics Study with Multidegree-of-Freedom Coupling in TBM Cutterhead System Based on Complex Factors

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="635809.fig.008a" src="https://static.hindawi.com/articles/mpe/volume-2013/635809/figures/635809.fig.008a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Frequency spectrum results of radial force</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="635809.fig.008b" src="https://static.hindawi.com/articles/mpe/volume-2013/635809/figures/635809.fig.008b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Frequency spectrum results of axial force</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="635809.fig.008c" src="https://static.hindawi.com/articles/mpe/volume-2013/635809/figures/635809.fig.008c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Frequency spectrum results of torque</td></tr></table></td></tr></table>

<table>Frequency spectrum results of external excitations.</table>

Mathematical Problems in Engineering

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Figure 8

Figure 8: Dynamic Characteristics Study with Multidegree-of-Freedom Coupling in TBM Cutterhead System Based on Complex Factors 