Vibration and Stability of Variable Cross Section Thin-Walled Composite Shafts with Transverse Shear

<div class="floats-full-page floats-full-page-other"><h2>Table 3</h2><div class="floats-full-page-caption">Shear stress effects on the first natural frequency (Ω = 100 rad/s).</div><div class="floats-full-page-content"><table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr /></td></tr><tr class="thead"><td align="left">Taper  ratio</td><td align="center">Ply <br />angle (°)</td><td align="center">With <br />shear (Hz)</td><td align="center">Without <br />shear (Hz)</td><td align="center">Change <br />rate (%)</td></tr><tr><td class="thead-hr" colspan="5"><hr /></td></tr><tr><td align="left" rowspan="4">TR = 0</td><td align="center">0°</td><td align="center">142.85</td><td align="center">149.09</td><td align="center">4.2</td></tr><tr><td align="center">10°</td><td align="center">138.67</td><td align="center">141.67</td><td align="center">2.1</td></tr><tr><td align="center">20°</td><td align="center">109.95</td><td align="center">110.22</td><td align="center">0.2</td></tr><tr><td align="center">60°</td><td align="center">20.29</td><td align="center">19.05</td><td align="center">−6.5</td></tr><tr><td align="center" colspan="5"><hr /></td></tr><tr><td align="left" rowspan="4">TR = 1</td><td align="center">0°</td><td align="center">193.72</td><td align="center">206.08</td><td align="center">6</td></tr><tr><td align="center">10°</td><td align="center">189.80</td><td align="center">196.09</td><td align="center">3.2</td></tr><tr><td align="center">20°</td><td align="center">152.55</td><td align="center">153.78</td><td align="center">0.8</td></tr><tr><td align="center">60°</td><td align="center">32.20</td><td align="center">31.12</td><td align="center">−3.4</td></tr><tr><td align="center" colspan="5"><hr /></td></tr><tr><td align="left" rowspan="4">TR = 2</td><td align="center">0°</td><td align="center">253.87</td><td align="center">274.52</td><td align="center">7.5</td></tr><tr><td align="center">10°</td><td align="center">255.03</td><td align="center">271.74</td><td align="center">6.1</td></tr><tr><td align="center">20°</td><td align="center">206.88</td><td align="center">206.10</td><td align="center">−0.37</td></tr><tr><td align="center">60°</td><td align="center">48.42</td><td align="center">45.62</td><td align="center">−6.13</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr" /></td></tr></table></td></tr></table></div></div>

Table 3 | Vibration and Stability of Variable Cross Section Thin-Walled Composite Shafts with Transverse Shear

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Table 3: Vibration and Stability of Variable Cross Section Thin-Walled Composite Shafts with Transverse Shear

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Table 3

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