Тест 3.2 Thread with multi-trunk supports
Verification of the LIRA-FEM software / Тест 3.2 Thread with multi-trunk supports / Analytical Solution: Designer's Handbook, M.: "building edition", 1972, vol.1, pp. 582 - 583.
Analytical Solution: Designer's Handbook, M.: "building edition", 1972, vol.1, pp. 582 - 583..
Geometry:
 |
l = 100 м; F = 15.96 х 10-4 м2; L blanks = 116.942 м. |
Material characteristics: Е = 1.6 х 107 т/м2.
Boundary conditions: wA = uA = wB = uB = 0.
Stresses: p = 0.42 т/м, q = 0.5 т/м.
The structure was modeled by finite elements of thread (FE 310-thread), the partitioning is 100 FE. The length of the workpiece is greater than the distance between the supports, so the initial geometry was determined by a special program "chain line" included in the PC LIRA.
CALCULATION RESULTS:
|
Point |
The desired value |
Analytical solution |
Calculation results (LIRA) |
Uncertainty,% |
|
С |
wC, м |
-10,164 |
-10,158 |
0,06 |
|
A |
NA, m |
119,0 |
118,574 |
0,36 |
|
A |
Распор Н, m |
87,314 |
87,1253 |
0,22 |
|
B |
tgθ |
0,1106 |
0,1108 |
0,18 |
wC is counted from point C. Preview image: Array
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