验证例题14.pdf

1Example 14 Title Tapered cantilever beam subjected to a vertical load at the free end Description Calculate the deflections of a tapered cantilever beam subjected to a concentrated load at the free end.Structural geometry and analysis model 2Model Analysis Type 2-D static analysis(X-Y plane)Unit System in,lbf Dimension Length 50 in Depth 3 9 in Thickness 2 in Element Plate element (Thick type)Material Modulus of elasticity E =30 106 psi Poissons ratio =0.3 Element Property Thickness t =2 in Boundary Condition Nodes 6 and 12 ;Constrain Dx and Dy.Load Case A concentrated load,4000 lbf is applied to the node 1 in the-Y direction.Example 60 3Results Y-displacements of the structure(Node 1)4Comparison of Results Unit:in Y-displacement Node Theoretical ANSYS NISA II MIDAS/Gen 1-0.0971-0.0968-0.0956-0.0964 References “ANSYS,Engineering Analysis System Verification Manual”,Revision 4.4,SWANSON Analysis Systems,Inc.,1990.VM 5.“NISA II,Verification Manual”,Version 91.0,Engineering Mechanics Research Corporation,1991