Common features are listed at the bottom of the Home Page

The Design program for Conical Disc (Belleville) Springs will produce a set of spring dimensions that may be used as is, or used as a starter set to be refined in the Spring Analyzer. You can design springs with a linear characteristic or a regressive one that provides a close-to-constant load over wide ranges of deflection in the last 50 percent of deflection to flat. The program will calculate the number of springs required for large deflections to produce economic designs.
The removal of set can result in appreciable increases in permissible stress levels and experienced users can enter an experience factor to take this into consideration. As is standard with all the input forms you cannot proceed without attending to any missing, or illogical entries.

Then pressing the Calculate button brings up the output screen showing the input data and calculated values for a proposed design. Suitable inside and outside diameters, thickness and a dished height to suit the spring characteristics are shown. Also the number of springs in series required to achieve the specified deflection is given together with the free height and the important stress values.
You can make changes by pressing the Review Input button and this takes you back to the Design input form. After pressing Calculate again you are returned to the output form. The interaction between the forms means that you can very quickly assess the results of changing the input factors.

When you press the Spring Analyzer button on the Conical Disc Design form this screen appears for input of data pertaining to an existing spring or spring design The form can be used to refine data developed on the spring design form.
Data required for input include the inside and outside diameters, the material thickness, the dished height and a maximum deflection. You can also input an initial deflection if relevant to your study.

Pressing Calculate on the Conical Disk Spring Analyzer form, assuming all required inputs are present, brings up the results screen. The input values are all displayed and if you have entered specific deflections of interest, these are reported with their properties at the top of the table of calculated properties. Below, properties for deflections of 25, 50, 75 and 100 percent of deflection to flat are listed. A curve of the spring's load/deflection characteristics can be plotted from these values.