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  1. RegisAlstom

    Damping Ratio Calculation

    I still don't get how to calculate the Damping Ratio for the data supplied by Bilstein. They say that the shock valving is 180/75, what means 1800N for rebound and 750N for compression at 0.52m/s Maybe I misunderstood Milliken, but it looks like F=C(dx/dt) and dx/dt is the velocity (0.52)...
  2. RegisAlstom

    Force in the springs after a jump

    Sory for my lack of understanding, but what is the time constant for the suspension + tire spring system? Lets supose the tire+spring constant is 300 lb/in. Can you explain better what is the step-function response of the suspension + tires that will give the instantaneous force during the...
  3. RegisAlstom

    Force in the springs after a jump

    I agree with that, but I am intending to assume that it will land evenly on all 4 wheels just to have a starting point Is the F=mgh valid for that? Thanks Regis
  4. RegisAlstom

    Force in the springs after a jump

    Sorry for the newbie question again. How to calculate the force that is actuating in the springs after a jump? Lets supose that I have a car with 2700lbs (Unsprung) + 800lbs sprung. so the total weight of the car is 3500lbs. Lets supose that I have 650 lbs per corner unsprung in the front...
  5. RegisAlstom

    Roll Center height for 4-link

    Thanks to all for the answers. Greg, I was not understanding exactly what you wrote, but now I can see and understand. Thanks Joest, the triangulated links are used as lateral control devices too. Thanks for the validation on the Milliken's approach bhart THANKS a lot! It was exactly what I...
  6. RegisAlstom

    Roll Center height for 4-link

    Sorry for the begginer level question, but I am struggling to find the roll center height on a 4- link rear suspension. Looking in the plan view, the upper links are paralel, and the lowers are triangulated from the chassis to the axle. The lowers are pointing inwards in the chassis and...
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