Please login with your user name and your password. Select the module ‘Compression spring’ through the tree structure of the Project Manager by double-clicking on the module or clicking on the button ‘New calculation’.
The calculation module is opened in a new window.
A cold-formed compression spring 4 x 32 x 120 made of patented cold drawn wire
|Wire diameter||= 4 mm|
|Diameter||= 32 mm|
|Length of the unloaded spring||= 120 mm|
|is alternately loaded with|
|Spring force||= 300 N|
|Spring force||= 500 N|
We are looking for the spring rate R, the corrected shear stress at spring force for = 500 N and spring deviation .
Please start to enter the spring forces and .
During the entry of the spring forces, the corresponding spring deflections are determined and
Enter the number of coils as well as the wire diameter .
The settings for the spring ends, the support of spring as well the load are not changed.
Enter the spring length and the spring diameter .
To find the required material for the compression spring, click on the button ‘Material’.
The material selection is opened.
Select the following material from the listbox: patented cold drawn wire DH according to EN 10270-1: 2001, shot peended, .
When you enter the values, the result is determined and displayed immediately. You can find all detailed results
in the result panel.
The spring rate is = 9,364 N/mm and is displayed above the input field for the wire diameter.
In order to find the result for the shear stress, click on the ‘Report’ button. The shear stress at spring force is = 636,62 N/mm.
You will find the value for the spring deviation in the result panel. The spring deviation is = 21,36 mm.
The results are clearly displayed in the diagrams. Click on the diagram to see the full image and details.
After the completion of your calculation, you can create a calculation report. Click on the ‘Report’ button. You can navigate through the report via the table of contents that provides links to the input values, results and figures. The report is available in HTML and PDF format. Calculation reports, saved in HTML format, can be opened in a web browser or in Word for Windows.
When the calculation is finished, you can save it either on the eAssistant server or on your own workstation. Click on the ‘Save’ button.
If you have activated the option ‘Enable file save local’ in the Project Manager and the option ‘Local’ in the
calculation module, a standard Windows dialog for saving the file on your workstation appears.
Please note: You must not forget that the calculation module has to be closed to activate the option ‘Enable file save local.’
In case you have not activated this option, a new window is opened and you can save the calculation on the eAssistant server.
Please enter a name into the input field ‘Filename’ and click on the button ‘Save’. Then click on the button ‘Refresh’ in the Project Manager. Your saved calculation file is displayed in the window ‘File’.
Our manual is improved continually. Of course we are always interested in your opinion, so we would like to know what you think. We appreciate your feedback and we are looking for ideas, suggestions or criticism. If you have anything to say or if you have any questions, please let us know via phone +49 (0) 531 129 399-0 or email eAssistant@gwj.de.