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F E D 5
Software for Calculation of Conical Compression Springs
(C) Copyright 1993-2009 by HEXAGON Software, Berlin
Conical Spring Calculation
FED5 software calculates conical helical compression springs.
Characteristic lines and spring drawings can be graphically displayed or exported to CAD and DTP via DXF files.
Dimensioning
Spring dimensioning can be carried out when you input spring loads, travel and the spring length L2, upper and lower coil diameters and wire diameter, if the working travel is within the linear area of the spring characteristic line. The smallest possible wire diameter is calculated when 0 is entered.
Calculation
FED5 calculates all required spring forces, spring travel, spring rates, spring work, tension, wire length and weight when you input wire diameter, coil diameter, spring length and number of coils.
Material Database
The software obtains the values for the most important spring materials from the integrated material database (tensile strength, admissable shearing stress, shearing modulus, modulus of elasticity, density), this saves you from searching in tables and reading out the characteristic values.
Tolerances
FED5 also calculates the tolerances for the wire diameter d in accordance with DIN 2076 and 2077, and for Dm, L0, F1, F2 in accordance with DIN 2095 and 2096.
Spring Drawing
Cross-section drawings and centerline 3D drawings of the conical helical compression spring in any clamping length can be graphically displayed and exported to CAD via DXF and IGES files.
Diagrams
FED5 allows you to display the spring characteristic curve, spring rate, and spring work on screen.
Each screen graphic can be printed out on any Windows printer. Export to CAD is also possible via DXF and IGES interfaces.
Characteristic Spring Line
The characteristic line (force path diagram) of a conical helical compression spring becomes progressive at the point where the larger coils begin to touch.
Spring Rate
The spring rate is constant up to the point where the larger coils begin to touch. From this point on the spring becomes increasingly harder.
Spring Work
The spring work amounts from the integral or the area under the spring characteristic line.
Natural Frequency
Relaxation
Tension Curve
The shearing stress is, among other things, dependent upon the coil diameter, and for this reason increases the larger the coil diameter becomes until the coils begin to touch. The tension curve can be graphically displayed with FED5.
Goodman Diagram
You can see immediately 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 repetitions are shown.
Production Drawing
FED5 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
FED5 is a 32-bit version for Windows 95, 98, NT, 2000, XP, Vista, 7.
Scope of Delivery
CD-ROM with FED5 program, 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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