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F E D 6
Software for Calculation of Nonlinear Helical Compression Springs
(C) Copyright 1993-2024 by HEXAGON, Berlin, Kirchheim, Neidlingen
Nonlinear Spring Calculation
A progressive characteristic line is obtained when cylindrical compression springs with differing coil distances are coiled. The FED6 software was specially developed to calculate this type of spring. FED6 calculates all spring travels and forces. The characteristic lines and spring drawings can be graphically presented, and exported via DXF files to CAD and word-processing programs.
Calculation
The spring rate, and with that the degree of progression, is determined by input of length and coil number of the spring section. A maximum of 50 different steps can be defined. FED6 calculates all necessary spring forces, spring travel, spring rates, spring work, tension, wire length and weight after input of wire diameter and coil diameter.
Dimensioning
You can enter the characteristic spring curve (F-s diagram or F-L diagram), and FED6 calculates the spring sections for this curve.
Material Database
The FED6 software obtains the values for the most important spring materials from the integrated material database (tensile strength, admissable shearing stress dependent on wire diameter, shearing modulus, modulus of elasticity, density).
Tolerances
FED6 calculates the tolerances for the wire diameter d according to EN 10218 and DIN 2077, and for Dm, L0, F1, F2 according to EN 15800 and DIN 2096.
Spring Drawing and Animation
Cross-section drawings of the spring in any clamping length can be graphically presented and exported to CAD via DXF or IGES files. Animation allows you to slew the spring on the screen between two specified positions.
Diagrams
FED6 allows you to display the spring characteristic curve, spring rate and spring work as a diagram on screen. Each screen graphic can be printed out as a hardcopy on laser, inkjet or needle printers. All drawings and diagrams can be exported to CAD or DTP via the DXF and IGES interfaces.
Spring Characteristic Curve, Spring Rate, Natural Frequency
The characteristic line (force path diagram) of a non-linear compression spring becomes progressive at the point where the first coils begin to touch. The spring rate and spring force curves are graphically represented as a function dependent on the spring travel.
Spring Work
The spring work arises as the integral from the spring characteristic line.
Goodman Diagram
You can see immediately in the fatigue strength diagram whether or not the permissable travel tension has been adhered to for dynamically stressed springs. The curves for fatigue strength (>10 million) and for 1 million and 100,000 repetitions are shown.
Relaxation
Relaxation depends on spring load, material, temperature and time.
Quick Output
The quick output displays all spring characteristic lines and the most important spring data on one screen.
Production Drawing
FED6 generates a complete production drawing from the calculated data as DXF and IGES files which can then be exported to CAD, or directly plotted out using the DXFPLOT software.
Hard and Software Requirements
FED6 is available as 32-bit or 64-bit application for Windows 11, Windows 10, Windows 7.
Scope of Delivery
FED6 program, User manual (pdf), License agreement for an indefinite period of time, Update service
Guarantee
HEXAGON gives a 12 month guarantee on full functionality of the software.
Software Maintenance, Hotline
HEXAGON Software is continuously improved and updated. Customers will be informed regularly of updates and new editions.
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