Measure

Purpose:

This interface is used to make measurements of various aspects of the model and to create local coordinate systems. It is available for pre and post-processing phases. If an LS-DYNA keyword file or project file is loaded, measurements are limited to single values. If post-processing files are loaded, measured quantities wil be XY plotted. Measurements can be done in the global coordinate system (default) or optionally in a local coordinate system. Upon selecting a local coordinate system, the displacements and coordinates can be measures with respect to that coordinate system.

Function:

Basic: Basic functions to measure variables of model.

Affixation: Added functions, such as create local coordinate system, separation and so on.

Sample:

Sample1:A sample to show how to use basic features.

Sample2:A sample to show how to create local coodinate system.

Sample3:A sample to show how to use part separation features.

Basic:

  • Item:Select an item to measure/Create local coordinate system. ( Coordinate, Dist N2N, Dist N2S, Dist P2P, Angle 3Node, Angle 4Node, 3Pt Radius, Area, Volume, Mass, Inertia, Ang Vel, Create Axes, Separation).

  • Active Elements Only:Measure part(s) using active elements. ( some elements can be blanked. See blank interface in details)

  • Element:Display measurement for selected elements.

  • Part:Display measurement for selected parts.

  • All:Display measurement for all visible parts.

  • Reference Axes list:Select current reference axes for measurement.

  • Delete:Delete selected axes.

  • Cancel Pick:Cancel the last picked node.

  • Apply:Apply for displayed parts.

  • History list:Select history type to plot.

  • Plot:Plot history data in current XY-Plot window.

  • New:Plot history data in a new XY-Plot window.

  • Padd:Add history data to current XY-Plot window.

  • Clear:Clear selected items in list.

  • Raise:Raise all open XY-Plot windows.

  • Pop:Open and raise all closed XY-Plot windows.

  • Done: Exit the measure interface.

 

 

Affixation:

Create local coordinate system:

  • Origin:Pick point for axes origin.

  • Xpoint:Pick point for direction of X axes.

  • XYplane:Pick point to define XY plane of axes.

  • Node:Pick or selected node number.

  • Fix:Pick or selected node number.

  • X,Y,Z:Enter or show global x, y or z component value.

  • NX,NY,NZ:Set components into x, y or z direction.

  • Cart:Set local system to Cartesian.

  • Cyl:Set local system to Cylinderical.

  • Sph:Set local system to Spherical.

  • Import:Read local system from a file.

  • Create:Local system creation dialog.

 

Separation:

  • Part2Part:Select part to part separation or part to a reference state.

  • From:Enter part id for fringe.

  • To:Enter part id or reference state.

  • Show:Compute separation fringes.

  • Tracer:Show or clear separation distance nodal tracers.

  • Axial:Separation along axial direction X,Y or Z.

  • Components or Axis AX, AY, AZ:Select X, Y, Z axial separation distance.

  • -/+:Distance between parts in +ve and -ve directions.

  • -ve:Distance in -ve direction only.

  • +ve:Distance in +ve direction only.

  • Shell thickness offset T1, T2:Allow for shell thickness in part1 and part2.