## 5 Conclusions  
This study experimentally examined the effect of a magnetic field and ambient parameters on the viscosity of different low-cost, custom-prepared magnetic fluids for the design of TLDs. Experimental investigations are essential to validate theoretical models, refine design parameters, and ensure the effective performance of TLDs in mitigating structural \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Sphere**} & \multirow{2}{*}{
\begin{tabular}{c} **Iron Filings** \\ **(g/mL)** \\ \end{tabular} } & \multirow{2}{*}{**B (T)**} & \multicolumn{2}{c}{**Dynamic Viscosity (kg/s/m)**} & \multicolumn{2}{c}{\(\zeta\)} & \multicolumn{2}{c}{**v\({}_{t}\) (m/s)**} \\ \cline{3-8}  & & **Mean** & **SD** & **Mean** & **SD** & **Mean** & **SD** \\ \hline \multirow{4}{*}{2} & 0 & 0 & 0.077 & 0.004 & 2.362 & 0.101 & 0.948 & 0.062 \\ \cline{2-8}  & 1.28 & 0 & 0.076 & 0.006 & 2.403 & 0.102 & 0.951 & 0.075 \\ \cline{2-8}  & 1.28 & 0.015 & 0.080 & 0.008 & 2.596 & 0.274 & 0.946 & 0.061 \\ \hline \multirow{4}{*}{3} & 0 & 0 & 0.074 & 0.007 & 7.009 & 0.222 & 0.881 & 0.063 \\ \cline{2-8}  & 1.28 & 0 & 0.075 & 0.009 & 6.895 & 0.203 & 0.882 & 0.075 \\ \cline{2-8}  & 1.28 & 0.015 & 0.081 & 0.008 & 7.052 & 0.336 & 0.853 & 0.076 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Fitted fall of Spheres 2 and 3 through the tube with sunflower oil. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Sphere**} & \multirow{2}{*}{**Iron Filings (g/mL)**} & \multirow{2}{*}{**B (T)**} & \multicolumn{2}{c}{**v\({}_{t}\) (m/s)**} & \multicolumn{2}{c}{**Dynamic Viscosity (kg/s/m)**} \\ \cline{3-8}  & & & **Mean** & **SD** & **Mean** & **SD** \\ \hline \multirow{4}{*}{4} & 1.28 & 0 & 0.0383 & 0.0021 & 0.074 & 0.005 \\ \cline{2-8}  & 1.28 & 0.015 & 0.0385 & 0.0023 & 0.073 & 0.007 \\ \cline{2-8}  & 1.28 & 0.030 & 0.0376 & 0.0027 & 0.076 & 0.006 \\ \cline{2-8}  & 2.56 & 0.030 & 0.0369 & 0.0032 & 0.079 & 0.010 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Parameters of fall of Sphere 4 through the tube with sunflower oil. vibrations under real-world conditions. These insights directly improve the safety and resilience of buildings and infrastructure. The coupling of magnetic fluids with magnetic field activation provides a versatile and efficient means of vibration control. The ability to dynamically adjust viscosity in response to structural demands makes this approach particularly promising for modern adaptive damping solutions. The set of tests with magnetic acrylic gel demonstrated that this fluid modified its viscosity significantly under the magnetic field. However, the increased deviation in the sample indicated that there is no satisfactory control over the viscosity of the fluid when the magnetic field is active. Despite the statistical tests that have shown that the temperature and the relative humidity were well controlled during the trials to eliminate their effects, slight variations in other experimental conditions have been shown to affect the variables to be measured, particularly the viscosity. Regarding the set of experiments corresponding to the sunflower-based fluid, it was observed that the presence of the magnetic field did not significantly affect the viscosity of the ferromagnetic emulsion. Several factors can influence this behavior. First, the intensity of the magnetic field is crucial--small values may not be sufficient to modify the arrangement of the ferromagnetic particles in the fluid. Secondly, the concentration and homogeneity of the ferromagnetic particles play a key role. A low concentration was required to ensure proper tracking of the motion of the falling spheres, but at the same time may not be enough to ensure a strong chain formation in the presence of the magnetic field. One of the key challenges identified in this study is the tendency of ferromagnetic particles to settle over time, affecting the homogeneity of the fluid and its rheological response under a magnetic field.