## 2 Design and Methodology
### Mesh and Study Validation
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Position (cm)**} & \multirow{2}{*}{**Output**} & \multicolumn{8}{c}{**Input**} \\ \cline{3-8}  & & **Voltage (V)** & **L1** & **L2** & **L3** & **R1** & **R2** & **R3** \\ \hline \multirow{4}{*}{10.0} & \multirow{2}{*}{0.50 m/s} & m = 40 kg & 1.2414 & 4.2943 & 1.2420 & 0.2280 & 0.3348 & 0.2286 \\  & & m = 45 kg & 1.3966 & 4.8311 & 1.3972 & 0.2565 & 0.3766 & 0.2572 \\ \cline{2-8}  & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} \\  & & m = 45 kg & & & & & \\ \cline{2-8}  & \multirow{2}{*}{1.00 m/s} & m = 40 kg & 1.2414 & 4.2943 & 1.2420 & 0.2280 & 0.3348 & 0.2286 \\  & & m = 45 kg & 1.3966 & 4.8311 & 1.3972 & 0.2565 & 0.3766 & 0.2572 \\ \hline \multirow{4}{*}{12.5} & \multirow{2}{*}{0.50 m/s} & m = 40 kg & \multirow{4}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} & \multirow{2}{*}{0.75 m/s} \\  & & m = 45 kg & & & & & \\ \hline \multirow{4}{*}{15.0} & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{4}{*}{1.4975} & \multirow{2}{*}{3.0231} & \multirow{2}{*}{1.4857} & \multirow{2}{*}{0.4553} & \multirow{2}{*}{0.6416} & \multirow{2}{*}{0.4518} \\  & & m = 45 kg & 1.6847 & 3.4009 & 1.6714 & 0.5122 & 0.7218 & 0.5083 \\ \cline{2-8}  & \multirow{2}{*}{1.00 m/s} & m = 40 kg & \multirow{4}{*}{1.6289} & \multirow{4}{*}{2.6077} & \multirow{2}{*}{1.6201} & \multirow{2}{*}{0.8111} & \multirow{2}{*}{1.1408} & \multirow{2}{*}{0.8144} \\  & & m = 45 kg & & & & & \\ \hline \multirow{4}{*}{20.0} & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{4}{*}{1.4479} & \multirow{2}{*}{2.3179} & \multirow{2}{*}{1.4401} & \multirow{2}{*}{0.7210} & \multirow{2}{*}{1.0141} & \multirow{2}{*}{0.7239} \\  & & m = 45 kg & 1.6289 & 2.6077 & 1.6201 & 0.8111 & 1.1408 & 0.8144 \\ \cline{2-8}  & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{4}{*}{1.4262} & \multirow{4}{*}{2.3179} & \multirow{2}{*}{1.4401} & \multirow{2}{*}{0.7210} & \multirow{2}{*}{1.0141} & \multirow{2}{*}{0.7239} \\  & & m = 45 kg & 1.6289 & 2.6077 & 1.6201 & 0.8111 & 1.1408 & 0.8144 \\ \hline \multirow{4}{*}{22.5} & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{4}{*}{1.3520} & \multirow{4}{*}{0.0000} & \multirow{4}{*}{1.3374} & \multirow{2}{*}{0.8657} & \multirow{2}{*}{1.2202} & \multirow{2}{*}{0.8686} \\  & & m = 45 kg & 1.5209 & 0.0000 & 1.5045 & 0.9739 & 1.3727 & 0.9772 \\ \cline{2-8}  & \multirow{2}{*}{0.50 m/s} & m = 40 kg & \multirow{4}{*}{1.00 m/s} & \multirow{4}{*}{2.462} & \multirow{4}{*}{1.8156} & \multirow{2}{*}{1.2256} & \multirow{2}{*}{1.0030} & \multirow{2}{*}{1.4182} & \multirow{2}{*}{1.0069} \\  & & m = 45 kg & 1.4020 & 2.0426 & 1.3788 & 1.1284 & 1.5954 & 1.1328 \\ \cline{2-8}  & \multirow{2}{*}{0.75 m/s} & m = 40 kg & \multirow{4}{*}{1.3520} & \multirow{4}{*}{0.0000} & \multirow{4}{*}{1.5045} & \multirow{4}{*}{0.9739} & \multirow{4}{*}{1.3727} & \multirow{4}{*}{0.9772} \\  & & m = 40 kg & \multirow{4}{*}{1.00 m/s} & \multirow{4}{*}{2.462} & \multirow{4}{*}{1.8156} & \multirow{4}{*}{1.2256} & \multirow{4}{*}{1.0030} & \multirow{4}{*}{1.4182} & \multirow{4}{*}{1.0069} \\  & & m = 45 kg & 1.4020 & 2.0426 & 1.3788 & 1.1284 & 1.5954 & 1.1328 \\ \cline{2-8}  & \multirow{2}{*}{0. Most research papers focus on developing piezo technology through experiments with various materials and applications. Simulating intelligent devices for improved energy harvesting takes up the majority of the subsequent work performed with numerical analysis. Reference [19] proposes a ZnO-based acoustic piezoelectric sensor placed between two layers of aluminum electrodes. COMSOL measures the sound-induced potential difference. The proposed device has micrometer-scale dimensions and microvolt-scale voltage. The results illustrate how sound pressure increases the voltage. Reference [22] suggests stacking ZnO between platinum electrodes for various bio-sensing applications.