Тест 4.11 Console torsional stability (new)

Analytical solution: А. V. Perelmuter, V. I. Slivker Stability of Structures and Related Issues, М.: SKADSOFT Publishers, 2007, p. 552.

Geometry:

L = 10 м;

Material characteristics: EF = 10 т, ЕIy = EIz = 10 тм², GI = 10 тм².

Boundary conditions: Point A is pinched.

Loads: P = 1 т.

CALCULATION RESULTS:

We used rod finite elements (KE 10), the breakdown is 100 KE. The load application nodes are absolutely rigid bodies.
The formulas (3.3.20) from the book by A.S. Gorodetsky and I.D. Evzerov were used for constructing the stability matrix Computer models of structures, М. «АСВ», 2009.

РЕЗУЛЬТАТЫ РАСЧЕТА:

Load diagramя	The desired value	Analytical solution	Calculation results (LIRA)	Uncertainty,%
1	Stability margin	1.0	1.0	0,0
2	Stability margin	π	3,1418	0,01
3	Stability margin	π/2	1,5708	0,0
4	Stability margin	π/2	1,5708	0,0
5	Stability margin	π/2	1,5708	0,0

Preview image: Array

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