Механики XXI веку №15 2016

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Механики XXI веку. № 15 2016 г.
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vironment temperature Tcp = -150C and the contact time of t = 5 minutes the shift tension decreases by 46%;
at environment temperature Tcp = -35оC and the contact time of t = 3 minutes the shift tension decreases by
43%.
Table 2
The single-factorial equations of shift tension without AIL application
Without AIL application
№ Natural values of factors Single-factorial equations
Tср, ˚С W, % t, min
Shift tension, N
1 2 3 4 5
1 - 17.5 7 2
10 611 9 123 ср ср Т . Т . . Y     
- 12.5 5 2
10 974 7 81 47 ср ср Т . Т . . Y     
- 7.5 3 2
10 374 4 97 34 ср ср Т . Т . . Y     
2 5 - 7 2 1074 0 82 365 18W . W. . Y     
-15 - 5 2 1074 0 28 635 25W . W. . Y     
-35 - 3 2
1074 0 613 485 42W . W. . Y     
3 5 17.5 - 2 985 3 33 27 57 59t . t . . Y    
-15 12.5 - 2 985 3 83 17 4 134t . t . . Y    
-35 7.5 - 2
985 3 338754t . t . . Y    
The analysis of these dependences shows that if the contact time increases the soil-metal surface shift
tension increases as well. When the anti-icing liquid "MAXFLIGHT 04" is applied, the shift tension
decreases: at environment temperature Tcp = 5оC and if the soil moisture content is W = 17,5% the shift
tension decreases by 28%; at environment temperature Tcp =-15оC and if the soil moisture content is W =
12,5% the shift tension decreases by 36%; at environment temperature Tcp = -35оC and if the soil moisture
content is W = 7,5% the shift tension decreases by 32%. When the anti-icing liquid "OCTAFLO EG" is
applied the shift tension decreases: at environment temperature Tcp = 5оC and if the soil moisture content is
W = 17,5% the shift tension decreases by 26%; at environment temperature Tcp = -15оC and if the soil
moisture content is W = 12,5% the shift tension decreases by 34%; at environment temperature Tcp = -35оC
and if the soil moisture content is W = 7,5%, the shift tension decreases by 30%.
Table 3
The single-factorial equations of shift tension with AIL application
Anti-icing liquids application
№ Natural values of factors Single-factorial equations
Tср, ˚С W,% t, min AIL «MAXFLIGHT 04»
1 2 3 4 5
Shift tension, N
1 2 3 4 5
1 - 17.5 7 2
030 44 43 40 ср ср Т . Т . . Y     
- 12.5 5 2
030 942 18 ср ср Т . Т . Y     
- 7.5 3 2 030 51713 ср ср Т . Т . . Y     
2 5 - 7 2
430 79 39 55W . W. . Y     
-15 - 5 2 430 155 57 52 W . W . . Y     
Table 3 continuation