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Time History Graph Created Edited

Time History Graph


  • The time history analysis results (displacement, member forces and stresses of truss/beam elements) are displayed as graphs over time. In the case of boundary non-linear time history analysis, the time history analysis results of non-linear connection elements can be presented as graphs of nodal displacement. 



From the main menu, select [Results] tab > [Type : Time History Analysis] > [Time History Analysis] group > [T.H Graph] > [Time History Graph]



Results-Time History-Time History Graph.png

Time History Graph dialog box

Define/Modify Function

Define or change the output parameters for time history analysis results to be plotted in graphs. Refer to Time History Result Functions.

Function List

Select the functions to be plotted in a graph from the list of the defined functions. Multiple functions can be plotted on a single graph for comparative purposes.

Merge Function List

Multiple functions will be consecutively plotted in one graph like figure below.

Vertical Axis

Select the item corresponding to the vertical axis of the graph.

Add from List : Add a defined result function.

Delete : Delete selected result function.

Horizontal Axis

Select the item corresponding to the horizontal axis of the graph. The item that can be selected is one of Time Step and the functions listed in Define Function. Select Time Step if you wish to produce displacements, member forces, etc. relative to time. In order to produce Force-Deformation relationship, select a function name defining the deformations.

Type of Display

Enter a title of the time history graph and a format of output for axes.

Graph Title : Title of time history graph

X Axis Decimal Pt. : Decimal points and whether to express in exponents for X-axis of the graph

Y Axis Decimal Pt. : Decimal points and whether to express in exponents for Y-axis of the graph


Select a graph type.

Time History Graph : Time History Graph representing analysis results.

Modal Max Graph : Frequency time history graphs representing the maximum values of individual modes.

Serviceabillity Check Graph : When the serviceability of floor vibration is to be evaluated, a comparative graph is presented to assess the acceptability against the Japanese Regulation for serviceability performance evaluation.

NOTE.png If Serviceability Check Graph is selected, the results are plotted against the standards for serviceability evaluation, using the maximum values and the predominant frequency obtained from the time history analysis.

Graph : Display graphs for the selected functions defined in the Check Functions to Plot list.

Right click on the graph displayed on the screen to prompt the following Context Menu.

Change Title & Label : The title and subtitles to the x & y-axes may be changed.

Zoom Out : Drag the mouse over the part that is of interest to zoom in and click Zoom Out to restore the view.

Zoom Out All : Restore the very initial view of the graph. That is, revert to the view that contains all the ranges.

Time <-> Freq : Using the FFT algorithm, the time history graph is converted to the frequency history graph and vice versa.

X Axis Log Scale : The X-axis of the graph is converted to Log Scale. Executing once again restores to the original state. (Toggle)

Y Axis Log Scale : The Y-axis of the graph is converted to Log Scale. Executing once again restores to the original state. (Toggle)

Change Graph Range : Specify the minimum/maximum values for the X-axis and Y-axis to adjust the output range of the graph.

Auto Range : Display the graph with the entire range that includes the results of the time history analysis.

Save Graph As Image : Save the graph in the graphic file format of BMP, JPG or EMF.

Save Graph As Text : Save the graph in the format of a text file.

Save Graph As Excel : Export the graph data in the format of Excel Sheet.



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