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Changes to NCT suspension test...

Comments

  • #2
    punisher5112
    Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    Wow that's interesting.


  • #3
    Sam Russell
    Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    It sounds like they will test each corner separately, rather than right vs left. If both are fubar, then the comparison test is rubbish.

    I was always told to test each corner by sitting (jumping) on the corner and releasing it. The corner should rise up and just overshoot a very small bit. Any more and it was bad.

    A simple test.


  • #4
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,195 ✭✭✭✭jimgoose


    Sam Russell wrote: »
    It sounds like they will test each corner separately, rather than right vs left. If both are fubar, then the comparison test is rubbish.

    I was always told to test each corner by sitting (jumping) on the corner and releasing it. The corner should rise up and just overshoot a very small bit. Any more and it was bad.

    A simple test.

    The key thing is that the shock should rise back up more slowly than it went down, and ideally not overshoot at all. It seems to me that data from existing shock dynos should be used to calculate damping ratios for front and rear shock pairs, and a pass/fail decision derived against predetermined thresholds. Performance of once side compared to the other should not be too out-of-kilter either.

    Wikipedia has a handy write-up on damping ratio:

    https://en.wikipedia.org/wiki/Damping_ratio


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