Setting up time-history analysis involves the following steps:

• Develop the model, including geometry and support conditions.
• Define (via "Define > Functions > Time History") a time-history function or functions that will describe the variation of loads in time.
• Assign loads (via "Assign > Joint Loads (or Frame Loads, etc.) to the model.
• Define the time-history load case via "Define > Load Cases". The time-history type can be either Modal or Direct Integration - please see [CSI Analysis Reference Manual] for detailed explanation. To apply custom loads, make the following entries to the Load Applied section of the Load Case Data form:
  • Load Type column: select option "Load Pattern
  • Load Name column: select the desired load pattern name
  • Function: select the time function that defines the desired variation of the load pattern in time

See also

• [CSI Analysis Reference Manual], chapters Linear Time-History Analysis and Nonlinear Time-History Analysis
• Verification Examples
• Example Problems
• [Multi-support excitation]