A 3-D CHAIN ALGORITHM WITH PSEUDO-RIGID-BODY MODEL ELEMENTS

作者：Chase Robert P Jr; Todd Robert H; Howell Larry L^*; Magleby Spencer P

来源：Mechanics Based Design of Structures and Machines, 2011, 39(1): 142-156.

DOI：10.1080/15397734.2011.541783

• Buckle
• Chain
• Compliant
• Deflection
• Large
• Mechanism
• Torsion

A chain algorithm element is created from pseudo-rigid-body segments and used in a chain calculation that accurately predicts the force deflection relationship of beams with large 3-D deflections. Each chain element is made up of three superimposed pseudo-rigid-body models acting orthogonally in relation to each other. The chain algorithm can accurately and quickly predict large displacements and the force-deflection relationship of lateral torsional buckled beams. This approach is not intended to compete with finite element analysis, but rather is a supplement tool that may prove particularly useful in the early phases of design when many analysis iterations are required. The 3-D chain algorithm is demonstrated and compared to the finite element analysis for the nonlinear large-deflection, post-buckling path of a flexible beam undergoing lateral-torsional buckling.

• 出版日期2011