Optimization of Sound Transmission Loss through a Thin Functionally Graded Material Cylindrical Shell

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">Frequency (Hz)</td><td align="center">A-weighting dB(A)
					</td><td align="center">Multiplier  <svg height="16.950001" id="M129" style="vertical-align:-0.16302pt" version="1.1" viewbox="0 0 65.925003 16.950001" width="65.925003" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></span></td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">1000</td><td align="center">0</td><td align="center">1</td><td align="center">0.1156</td></tr><tr><td align="left">1250</td><td align="center">0.6</td><td align="center">1.148</td><td align="center">0.1327</td></tr><tr><td align="left">1600</td><td align="center">1</td><td align="center">1.259</td><td align="center">0.1455</td></tr><tr><td align="left">2000</td><td align="center">1.2</td><td align="center">1.318</td><td align="center">0.1524</td></tr><tr><td align="left">2500</td><td align="center">1.3</td><td align="center">1.349</td><td align="center">0.1559</td></tr><tr><td align="left">3150</td><td align="center">1.2</td><td align="center">1.318</td><td align="center">0.1524</td></tr><tr><td align="left">4000</td><td align="center">1</td><td align="center">1.259</td><td align="center">0.1455</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Normalized weights using the A-weighting.

Shock and Vibration

tab3

Table 3

Table 3: Optimization of Sound Transmission Loss through a Thin Functionally Graded Material Cylindrical Shell 