Sample Apps

  XR650 Tuning

    Input file

  Shim ReStackor

    Clicker map

    Valve Tuning

    Trail Stack

  ReStackor pro

    Clicker map

    Valve Tuning

    Damp Coeff



ReStackor pro Clicker Map Calculations

The input file for the XR650 ReStackor calculations was setup here. This exercise runs the stock valve stack at a couple of different clicker settings to create a map of damping rate vs clicker setting. The first calculation is with the clickers "centered" at the 11 click position. The XR650 compression adjuster has 22 clicks from full opened to closed. The clicker position used in the calculation is set in Cell h10 and cell k8 contains the total number clicks available on the adjuster. 

After clicking on the run button and the Load_Output button the ReStackor calculation results are loaded into the "ReStackor" tab of the spreadsheet and the plots are automatically updated. 

ReStackor Output

The ReStackor pro outputs are on the "ReStackor" tab.

Results from Shim ReStackor calculations are in columns A through E and columns G through M contain results from ReStackor pro calculations. The values in the output field are:

  • Shim ReStackor Output

  • Force (column A): Force applied to the shim stack

  • Yedge (column B): Edge lift height of the shim stack

  • Aclsd (column C): Valve flow area with the clickers closed

  • Aclk (column D): Valve flow area at the clicker position specified in the input file

  • Awo (column E): Valve flow area with the clickers wide open

  • ReStackor pro Output

  • Uwheel (column G): Suspension velocity with clickers at the set point defined in the input file

  • Uwo (column H): Suspension velocity with clickers in the wide open position

  • Uclsd (column I): Suspension velocity with the clickers in the closed position

  • Gv (column J): Oil flow rate through valve in Liters/min

  • Fstack (column K): Force applied to shim stack by fluid flow

  • Force (column L): Damping force produced by shock

  • Pressure (column M): Pressure difference between valve face and fluid reservoir

Generating a Clicker Map

We want to run a couple of cases with different clicker settings to make a map of damping force -vs- clicker settings. Every time you click on the Load_Output button the data columns in the "ReStackor" output tab are overwritten by the current output file. So we need to save the outputs in a new worksheet tab so they aren't overwritten.  

A new worksheet named "stock" was created and the ReStackor outputs in columns G through M copied to it. A second calculation was run with the clickers set at 6 clicks and the results pasted into the "stock" sheet in columns I and J. Only the wheel velocity and damping force were copied since that is all we need for this plot. With these results a clicker map was plotted as shown in the worksheet below. 

The instructions here assume you are familiar with excel and how to run and manipulate data within spreadsheets. We are not going to go into how to create a plot in excel. If you need help with that check out the microsoft excel website. 

RETURN to XR650 sample case.