Disc Spring Solver
Disc Spring Solver 3.2 can be downloaded from our software library for free. The latest setup file that can be downloaded is 34.6 MB in size. This tool was originally produced by SpringSolver. The software is included in Photo & Graphics Tools.
From the developer:
Disc springs are used in many fields of the mechanical industry but, because of their geometry, it is very hard to make absolute predictions for their behaviour.
You may want to check out more software, such as Springly, Otherworld: Spring of Shadows Collector's Edition or Spring Dream, which might be similar to Disc Spring Solver.