1. Analysis of engineering system by means of graph representation

2. Building the corresponding graph representation F 67 SC F 13 14 15 12 O E D 215 SC FF 7 8 9 10 P 2 16 G F G 11 121 SC PP 1 2 3 4 5 6 P 1 B O 17 A 121 SC PP E A 14 A 7 9 13 1 2 3 4 5 215 SC FF P 1 10 8 P 2 12 C D O 15 F G B O 1,2 O 3,5 O V 16 - initial velocity

3. Choosing the spanning forest 67 SC FF 1 2 3 4 5 13 14 15 12 7 8 9 10 P 2 16 6 P 1 B O A G O F G i E D 121 SC PP 215 SC FF 11 17

4. Dividing into two groups of edges – E F and E 

5. Building two auxiliary subgraphs. G  is obtained by removing the edges of E F 1 2 3 4 5 P 2 16 6 B O A F G i 11 GG

6. 1 13 14 15 12 7 8 9 10 16 P 1 G O i E D 17 Building two auxiliary subgraphs. G F is obtained by contracting the edges of E  2 3 4 5 6 B O A F G P 2 11 13 14 15 12 7 8 9 G O E D 17 GFGF

7. Constructing the analysis equations in accordance with the two graphs and the spanning forest