## 5 Received Results  
By introducing various boundary conditions and modifying the calculation parameters in the program, models C1-C20 were created. The analysis of each model consisted of reading the stress values in characteristic places (A-O) and checking the highest and lowest stress values for the entire object. Table 3 presents a summary of the results obtained--analysis of stresses in characteristic places. Models in which only load duration was tested (C17-C20) were placed immediately following an identical model with a shorter duration (C13-C16).  
For better visibility, Table 4 additionally presents the extreme values (the largest and the smallest) for the entire facility.  
In models 16 and 20, the maximum stress, i.e., 320.9 MPa and 327.1 MPa, are most similar to the initial assumptions compared with the Standard and the Robot program.  
The data are presented in the form of graphs separately for each point, and extreme values are presented in Figure 11.  
Figure 10: Wind speed isolines in the wind tunnel for case C15 depending on the load duration: (a) t = 100, (b) t = 200, (c) t = 300, (d) t = 400.  
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Case\(\backslash\)Value** & **Cl** & **C2** & **C3** & **C4** & **C5** & **C6** & **C7** & **C8** & **C9** & **C10** \\ \hline Max & 1016.2 & 1199.5 & 1035.7 & 1472.5 & 573.9 & 567.3 & 507.4 & 608.0 & 430.4 & 378.5 \\ \hline Min & \(-\)1884.3 & \(-\)1993.6 & \(-\)1779.1 & \(-\)2047.7 & \(-\)1429.0 & \(-\)930.7 & \(-\)928.0 & \(-\)1306.0 & \(-\)507.8 & \(-\)792.2 \\ \hline Case\(\backslash\)Value & C11 & C12 & C13 & C17 & C14 & C18 & C15 & C19 & C16 & C20 \\ \hline Max & 433.7 & 438.5 & 393.9 & 427.9 & 296.0 & 296.0 & 519.7 & 523.4 & 320.9 & 327.1 \\ \hline Min & \(-\)669.7 & \(-\)519.8 & \(-\)475.0 & \(-\)404.8 & \(-\)536.2 & \(-\)531.5 & \(-\)572.1 & \(-\)595.5 & \(-\)583.7 & \(-\)584.5 \\ \hline \hline \end{tabular}
\end{table}
Table 4: List of maximum stresses [MPa] for the entire object for cases C1–C20.  
Figure 11: Extreme values of stresses [Pa] graphically presented using charts: (a) maximum values, (b) minimum values.  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline
**Case\(\backslash\)Point** & **A** & **B** & **C** & **D** & **E** & **F** & **G** & **H** & **I** & **J** & **K** & **L** & **M** & **N** & **O** \\ \hline C1 & \(-\)479.7 & \(-\)114.1 & \(-\)193.9 & 55.2 & 136.8 & \(-\)618.8 & \(-\)44.3 & \(-\)242.0 & \(-\)330.9 & \(-\)250.9 & \(-\)92.9 & \(-\)69.1 & \(-\)101.4 & \(-\)165.7 & \(-\)94.2 \\ \hline C2 & \(-\)353.4 & \(-\)39.1 & \(-\)172.5 & 304.0 & 104.9 & \(-\)445.0 & \(-\)54.6 & \(-\)221.4 & \(-\)375.8 & \(-\)384.9 & \(-\)50.9 & \(-\)45.5 & \(-\)86.5 & \(-\)198.5 & \(-\)90.3 \\ \hline C3 & \(-\)366.2 & \(102.7\) & \(-\)237.4 & 355.3 & 96.0 & \(-\)521.2 & \(-\)22.2 & \(-\)712.9 & \(-\)285.6 & \(-\)268.6 & \(-\)66.5 & \(-\)41.7 & \(-\)76.1 & \(-\)180.4 & \(-\)120.4 \\ \hline C4 & \(-\)648.3 & \(-\)904.0 & \(-\)139.0 & 386.4 & 204.9 & \(-\)567.0 & \(-\)39.4 & \(-\)543.9 & \(-\)680.0 & \(-\)40.5 & \(-\)109.8 & \(-\)55.4 & \(-\)82.3 & \(-\)180.8 & \(-\)191.5 \\ \hline C5 & \(-\)192.4 & \(-\)48.8 & \(-\)138.9 & \(-\)10.7 & \(-\)91.8 & \(-\)350.6 & \(-\)202.6 & \(-\)155.4 & \(-\)170.6 & \(-\)195.5 & \(-\)43.4 & \(-\)58.3 & \(-\)55.4 & \(-\)77.5 & \(-\)60.2 \\ \hline C6 & \(-\)279.9 & \(-\)195.8 & \(-\)249.9 & \(-\)36.4 & \(-\)108.4 & \(-\)334.9 & \(-\)210.3 & \(-\)144.5 & \(-\)177.1 & \(-\)67.3 & \(-\)43.8 & \(-\)52.8 & \(-\)52.4 & \(-\)91.5 & \(-\)61.7 \\ \hline C7 & \(-\)276.5 & \(-\)128.0 & \(-\)213.7 & \(-\)15.1 & \(-\)135.9 & \(-\)456.3 & \(-\)198.0 & \(-\)207.5 & \(-\)219.1 & \(-\)217.8 & \(-\)96.3 & \(-\)98.3 & \(-\)83.1 & \(-\)191.8