AUTOMATIC LINE TEST OF TABLES RELATED TO MAX. AND MIN. VALUES

The automatic calculation of the line carries out, relating to each single span, the test setting the carrier trucks to the most significant positions (according to the settings described in the "CALCULATION-F05" section. The extreme (max. and min.) values found relating to each tested condition are carried to the following tables and graphical representations:

1) TABLE : spans and towers

 

In the presence of suspended haul rope supports, there is shown the table of the relative pressures induced by the carrying rope and counter rope resting on the suspended haul rope supports:

 

2) TABLE : tensions on the carrying rope

 

3)  Check graphic line and create to file DXF )

If the button is active, not only the table is filled, but it’s also executed the graphical line checking (for deflections and vertical distances). In the upper part of the screen there is the print menu ("Print"), the button to downsize the drawing ("Zoom All") and the button used to return to the table "Exit"; the "save" function is not active in this phase. Another menu allows to choose the hypothesis shown in the graph. Two groups of "optional" buttons allow to calculate the deflections and the vertical distances for the different line conditions. For these it’s possible to consider the snowiness and the car height.

The graphic representation of the line can be downsized (zoom) just right clicking with the mouse and then dragging until the desired dimension it’s reached; to return to the original dimension use the "Zoom All" menu. There is no "reverse zoom" possibility!

Enabling of the <File DXF create> push button starts the DXF file creation procedure and the mask below shows up on the screen:

Two separate sections appear: the upper one is for the required drawing parameters, whereas the other one is for the creation of the DXF graphical file.

Sheet format selection:

the procedure automatically compatibility of the sheet with the drawing scale and it shows incompatibility warnings. The user must select the sheet height (in cm), which is = 100 by default, in the yellow cell underneath.

Type of project:

handled in automatic mode, it only refers to the value to give to the inclination of line towers. If also tower design has been carried out, it is provided the file with the inclination values for the towers. Otherwise, the tower inclination file is not detected and an approximate calculation is carried out in compliance with this formula:

Scale of the drawing:

it is the selected value for the graphical representation ( = 500 by default on both axes!).

Test:

By means of the <PREPARA> push button the user can define the parameters for the graphical representation according to the format of the sheet and scale of the drawing. The values in the grey background cells cannot be changed and only serve for procedure check: on the contrary, the values in yellow background cells can be changed before enebling the <DISEGNO TERRENO>
and <DISEGNO TERRENO-LINEA> commands.

The <DISEGNO TERRENO> and <DISEGNO TERRENO-LINEA> commands make it possible to generate the preview of the graphical representation exactly as it will be plotted at the passage of the DXF file to the graphic program (Autocad o altro).
Herebelow an example is provided:

NB: the colors used in the graphical representation can be handled by the user through the following mask:

Upon completion of the visual check of the graphical representation, it is possible to start creating the DXF file to use with the specific plotting programs. The following graphical Autocad conventional variables are available for the User:

COLOUR :

the colour assigned to a certain layer (the Autocal colour code is displayed automatically) can be changed by clicking the colored area coinciding with the layer name. The sequence of all the available colors is through subsequent clicks.

LAYER NAME:

the layer name, assigned by default, can be changed.

COUNTRY:

there is the possibility to select the desired language.

ENABLING:

there is the possibility to carry out the graphical representation of only the ground profile, the line profile or both line and ground profiles.

The modified parameters are replaced by the default ones (above shown) every time when the procedure is accessed, but there is the possibility to save the new parameters through the save push button.

 

4) DIAGRAMMA  : andamento dello potenza richiesta all'argano motore

 

5) DIAGRAMMA  : andamento dello sforzo motore e delle tensioni alla puleggia motrice