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Compression Spring Design and Analysis

Compress Results

Common features are listed at the bottom of the Home Page

On the Compression Spring Design form you can work with Steady or Variable load conditions. For the variable load option, shown here, you enter two working heights and corresponding loads. You can set diameter limitations but this is optional. Otherwise the program will calculate an appropriate diameter. The end coil configuration and a required life are selected from drop-down boxes. If Input is missing, messages appear to request the missing information before you can proceed.

When the calculate button on the Design Form is pressed, the output screen appears. Message boxes warning of unstable proportions, high or low spring index, height conflict, or high stress conditions may appear and can be cleared by pressing OK. You can press the Review Input button to return to the design screen to take appropriate action — or you can accept the results shown. The immediate interaction between the Review Input button and the Calculate button allows you to switch back and forth easily to see the effect of changed input.
The options available on this screen include making a hard copy of the results, or you can print a reproduction of the spring graphic with a summary of the pertinent dimensions and properties, and you can save the results in the dedicated database.
Compression Analyst
 Compression An Results

Pressing the Spring Analyzer button on the Design screen brings up the Compression Spring Analyst form which can be used to provide the properties of an existing spring or spring design. It can also be used to refine a preliminary design developed on the spring design form. The following information is entered — Mean Dia., Wire Dia., Free Length, No. of Active Coils, at least one Working Height, End Coil Configuration and a Material Specification.
You can check the fatigue properties of a spring if a second working height is entered.

When the Calculate button on the Compression Spring Analyzer is pressed you are prompted to enter missing values, or correct illogical entries. Then the output screen will appear with, if applicable, message boxes warning of unstable proportions, high or low spring index, height conflict or high stress conditions. They can be cleared by pressing their OK buttons.
As with the design mode You can press the Review Input button to return to the input form to make changes if you wish. The immediate interaction between the Review Input button and the Calculate button allows you to switch back and forth easily to see the effect of changed input.

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