LABEL OPTIONS LOADS Control

      

FEMGEN Command only.

The LABEL OPTIONS LOADS command allows the user to control the size of the vectors that are displayed on the mesh to represent loads. The vectors themselves are displayed by using the LABEL MESH LOADS command. The default vector size is set to give a displayed size of approximately 10mm.

This command is also used to specify the stopping position at which selected moving loads are to be displayed. It does not apply when moving loads are displayed by the LABEL MESH LOADS loadcase command.

Control Comments

FIXED [factor] Each load selected for display will have the vector that is displayed to represent its maximum value scaled to the same length. A factor may be specified to scale up or down the default vector length.

RELATIVE [factor] Each of the vectors representing the values to be displayed will be scaled relative to the largest value in any of the displayed loads (see note 1). A factor may be specified to scale up or down the default vector length. Display selected moving loads at:

POSITION START the start position

STOP the stop position

integer the position numbered 'integer'

NEXT the next position from the current one

PREVIOUS the previous position from the current one

DISTANCE real a distance 'real' from the start point

RATIO real a ratio 'real' from the start point

Notes:

1.

Adding load display under the RELATIVE option
If loads are currently displayed and a new load is added to the display while the RELATIVE option is current then all the load vectors will be redisplayed according to a recalculated factor.

2.

Default condition
The default condition is RELATIVE.

3.

Start position of a moving load
The start position of a moving load is defined as the first axle (or point load) of the vehicle placed on the path start point.

4.

Stop position of a moving load
The stop position of a moving load is defined as the last axle (or point load) of the vehicle placed on the path stop point.

5.

Numbered position of a moving load
An integer gives the position number at which the moving load is to be displayed, such that 1 corresponds to the start position. Any integer value below 1 will default to the start position and any integer value above the total number of stopping positions will default to the stop position.

6.

Next and previous position of a moving load
NEXT and PREVIOUS show respectively the next and previous stopping position from the currently selected position if any.

7.

Stopping position of a moving load defined by a distance
Selected moving loads can be displayed at a specified distance measured from the start point to the front axle of the vehicle. The display is at the nearest load application point.

8.

Stopping position of a moving load defined by a ratio
Selected moving loads can be displayed at a specified ratio from the start point. The display is at the nearest load application point and is such that a ratio of 0. corresponds to the start position and a ratio of 1. corresponds to the stop position.

Examples:

1.

LABEL OPTIONS LOADS FIXED 1.5

Requests that load vectors are displayed such that within each load the maximum length vector will be approximately 15mm.

2.

LABEL OPTIONS LOADS POSITION 3

Requests that all selected moving loads are displayed at the third position in the sequence of stopping positions.

See also the following commands

'LABEL MESH LOADS'