BbariBbarx_matrix

Purpose

force influence matrices of primary structure from equilibrium matrix Bf

Synopsis

[Bbari,Bbarx,ind_x] = BbariBbarx_matrix (Bf,ind_r,ind_rng)

Description

BBARIBBARX_MATRIX force influence matrices of primary structure from equilibrium matrix Bf
  [BBARI,BBARX,IND_X] = BBARIBBARX_MATRIX (BF,IND_R,IND_RNG)
  the function determines the force influence matrices BBARI and BBARX
  of the primary structure from the equilibrium matrix BF;
  the optional argument IND_R specifies the index for the selected redundant basic forces;
  the optional argument IND_RNG selects the redundant basic forces among those in the group;
  BBARI is the force influence matrix for the applied forces at the free dofs,
  and BBARX is the force influence matrix for the redundant basic forces;
  IND_X is the redundant force index vector into the basic forces of the structure

Cross-Reference Information

This function calls:

• Bbar_matrix function for determining force influence matrices of structural model
• S_ForceMethod script for force method of structural analysis