验证例题05.pdf

1Example 5 Title Symmetric frame structure subjected to rotational forces Description Determine the displacements of a symmetric frame structure subjected to rotational forces.Structural geometry and analysis model 2Model Analysis Type 2-D static analysis (X-Y plane)Unit System in,lbf Dimension Width Height =40.0 in 40.0 in Element Beam element Material Modulus of elasticity E =1.2 107 psi Section Property Area A =1.0 in2 Moment of inertia Iyy =8.33 10-2 in4 Boundary Condition Node 1 ;Constrain all DOFs Load Case A concentrated load,10.0 lbf each is applied to the nodes 3 in the-Y direction,9 in the Y direction,6 in the X direction and 12 in the-X direction.Example 5 3Results Displacements of the structure 4Comparison of Results Unit:in Displacement(Node)ADINA NISA II MIDAS/Gen Y(3)-0.017790-0.017792-0.017792 References “ADINA Verification Manual-Linear Problems”,ADINA R&D,Inc.,Example A.40.“NISA II,Verification Manual”,Version 91.0,Engineering Mechanics Research Corporation,1991.