## 4 Results and Observations
The submarine model was submerged by a predetermined value and its displacement under the action of an acoustic wave as a function of temperature was determined. A total of 12 experiments were performed to determine the reliability of the assumptions made. The movement of the body under the action of a sound wave practically did not differ from each other and occurred within 3 seconds at a distance of 15 cm (Table 1). To continue the study, it is planned to improve the experimental setup. Studies of temperature heterogeneity in depth, as well as the presence of laminar and turbulent movement of a liquid medium are planned. Analysis of the obtained results proves the correctness of the assumption that, upon the action of acoustic shock, the elastic deformations of the surface of the external hull of the submarine will not affect the value of the final motion of the submersible vehicle in general, since the values \(M_{ii},\ m_{ik},\ \ \alpha_{ik}\) are limited and the residual deformations disappear. In other words, they are equal to zero, and the result of the members corresponding to them are also equal to zero. In this case, when the functions \(F_{ik}\) are not integrable, for example, for the case of real liquid, the weight of the object and deformations of its surface do not influence on the hull's motion limit. In the case when deformations of both bodies are elastic and the main central axes as well as their weights (moments of inertia) correspondingly coincide, the final motion of the submarine and the \"fictitious\" body (medium upon the absence of the submersible vehicle) are equal to each other. The deformations of the \"fictitious\" body will be elastic, for example, upon the effect of a plane wave, when all of the medium's particles move to the same distance. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**The Number of the Experiment** & \begin{tabular}{c} **\(t\)**, \\ **s** \\ \end{tabular} & \begin{tabular}{c} **\(c\)**, \\ **H/m** \\ \end{tabular} & \begin{tabular}{c} \(\rho\)**, \\ **kg/m\({}^{3}\)** \\ \end{tabular} & \
\begin{tabular}{c} \(\overrightarrow{V}\)**, \\ **m/s** \\ \end{tabular} &
\begin{tabular}{c} \(\ell\)**, \\ **m** \\ \end{tabular} \\ \hline
1 & 2.5 & 100 & 997 & 0.002 & 0.12 \\ \hline
2 & 2.8 & 100 & 997 & 0.0027 & 0.14 \\ \hline
3 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
4 & 2.9 & 100 & 997 & 0.0028 & 0.145 \\ \hline
5 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
6 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
7 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
8 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
9 & 2.9 & 100 & 997 & 0.0028 & 0.145 \\ \hline
10 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline
11 & 2.8 & 100 & 997 & 0.0027 & 0.14 \\ \hline
12 & 3.0 & 100 & 997 & 0.003 & 0.15 \\ \hline \hline \end{tabular} Where \(t\)—time; \(c\)—elastic stiffness coefficient (rubber band); \(\rho\)—density of water; \(\overrightarrow{V}\)—linear displacement; \(\ell\)—the distance that the lab model object moved.  
\end{table} 
Table 1: Experimental results of the movement of the body under the action of a sound wave. In the case of positive buoyancy, when \(M<M_{0}\), the final motion of the vehicle in the medium will exceed the motion of the ideal liquid's particles. Upon negative buoyancy, there will be less motion of the ideal liquid's particles. It has been established that in real liquid the weight of the body does not have an effect on the final motion's value of the submersible vehicle. The putative contradiction of this assertion is explained by the fact that, when \(t>T\), even slowly, i.e., upon an insignificant friction of hull against the medium, then the body of the positive buoyancy, being more than the liquid of motion, will turn back so that its motion will be equal to the motion of the particles of the liquid. The same situation occurs for the body of negative buoyancy as well.