TransientInitialize

Purpose

initialize State variables for transient response analysis

Synopsis

State = TransientInitialize (Model,ElemData,Loading,State)

Description

TRANSIENTINITIALIZE initialize State variables for transient response analysis
  STATE = TRANSIENTINITIALIZE(MODEL,ELEMDATA,LOADING,STATE)
  the function initializes variables in STATE relevant for transient response analysis and
  returns an updated data structure STATE;
  MODEL is a data structure with information about the structural model, ELEMDATA is
  a cell array with element properties, and LOADING is a data structure with information
  about applied force, imposed displacement, and imposed acceleration patterns
  with corresponding load histories;
  specifically the function adds the following fields to STATE needed for transient analysis
  STATE
       lamda   = row vector of current load factors
       Pi      = initial force vector (for load sequences)
       Time    = pseudo-or real time counter
       Ugddot  = support acceleration vector
       C       = damping matrix

Cross-Reference Information

This function calls:

• S_Transient_MultiStep script for multi-step transient analysis under given load history(ies)
• S_Transient_MultiStepwSD script for multi-step transient analysis under given load history(ies)