F E D 8
Software for Calculation of Torsion Bars
(C) Copyright 1996-2017 by HEXAGON, Berlin
FED8 calculates displacement angle, torques, shearing stress, spring
operation and sliding for torsion bars in accordance with DIN 2091.
Characteristic curves and scale drawings can be displayed graphically and
exported as DXF files to CAD and text programs.
Torsion bars of rectangular or elliptic profile may also be calculated by FED8.
In pre-dimensioning, one torque and the displacement angle are
entered, or two torques and the elevation angle are entered. FED8
then calculates an appropriate torsion bar.
In dimensioning, FED8 calculates the length of the torsion bar from the
torque, elevation angle and bar diameter.
In re-calculation, all dimensions for the torsion bar are entered. Loads
and shearing stress for different displacement angles are
The result printout incudes all input and result data. The excerpt shows
the most important spring data, abbreviated, on one page. There is also a
feature for output as HTML document for Intranet/Internet.
FED8 is equipped with an interface to Excel for data exchange.
FED8 generates scale spring drawings in accordance with DIN 2091, which can
be exported to CAD as DXF or IGES files.
Spring characteristic curves and spring operation are shown as a diagram on
screen. The diagramms can be printed, or exported to CAD or text
programs via DXF and IGES interfaces.
The Quick output allows the characteristic spring curve to be displayed on
one screen along with the most important spring data.
Material Data Base
The characteristic data of the most important spring materials (tensile
strength, perm. shearing stress in relation to bar diameter, shearing
modulus, E-modulus, density) is taken by FED8 from the integrated data
base. The DBF file can be edited and appended by the user.
You can display a help window for each input value. There are also
auxiliary pictures for each symbol used, and each calculation formula. FED8
displays warnings when values are exceeded. For each error message you can
display a more detailed description of the error and a remedy suggestion.
Hard and Software Requirements
FED8 is available as 32-bit and 64-bit application for Windows 10, Windows 7, Windows 8, Windows XP.
Scope of Delivery
The FED8 program (incl. sample data, auxiliary pictures, help texts), user manual, input forms, license for unlimited time use.
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