*BeamPair()

Creates a beam pair.

Syntax

*BeamPair(beam_name,"beam_label",body_1, body_2, point_1, point_2)

Arguments

beam_name: The variable name of the beam pair.; Data type: varname
beam_label: The descriptive label of the beam pair.; Data type: label
body_1: The first body or body pair attached to the beam pair.; Data type: Body or BodyPair
body_2: The second body or body pair attached to the beam pair.; Data type: Body or BodyPair
point_1: The point or point pair at which b1 is attached to the beam pair.; Data type: Point or PointPair
point_2: The point or point pair at which b2 is attached to the beam pair.; Data type: Point or PointPair

Example

*PointPair(p_tbar_susp_att, "Torsion bar susp att")
*PointPair(p_tbar_frame_att, "Torsion bar frame att")
*BodyPair(b_lca, "LCA", p_lca_cg)
*BodyPair(b_frame, "Frame", p_frame_cg)
*BeamPair(bm_tbar, "Torsion bar", b_lca, 
 b_frame, 
 p_tbar_susp_att, 
 p_tbar_frame_att)

Context

*BeginMdl()

*DefineAnalysis()

*DefineSystem()

Properties

Property	Returns Data Type	Description
i	MarkerPair	The marker pair attached to the first body pair.
j	MarkerPair	The marker pair attached to the second body pair.
l	Beam	Left beam.
label	string	The descriptive label of the beam pair.
r	Beam	Right beam.
state	boolean	Control state (TRUE or FALSE).
varname	string	The variable name of the beam pair.

Comments

The individual beams of a *BeamPair() can be referred to as beam_name.l (left beam) and beam_name.r (right beam).*BeamPair() can be used to model a massless beam pair of circular or arbitrary cross-sections.