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  1. MJW

    damper energy dissipation

    Thanks for your help. It isnt actually a vibrating system; it's more an energy dissipation mechanism before an end stop; a buffer if you like. Energy dissipated is therefore simply 1/2 cvL, where v=initial velocity, L=length of cushion and c is the damping coefficient. This assumes a zero final...
  2. MJW

    damper energy dissipation

    Hi, I hope you can help. I need to know what the energy dissipated by a damper in a single stroke is? It seems a simple, and obvious question but I am tying myself in knots with it! Please put me out of my misery. F=c*velocity, E=integral(0 to Length)F.dx? F=c*Length*acceleration? Aaargh...
  3. MJW

    bearing classification

    Is there an international system for bearing classification? I am trying to identify some needle roller bearings in an assembly as part of my degree studies. I presume that a manufacturer would buy in bearings rather than make them in house, and I presume that these bearings are made to set...
  4. MJW

    Exaustpipe

    World Rally Cars inject fuel into the exhaust before the turbo. The fuel detonates and keeps the turbo spinning; this prevents turbo 'lag' and improves engine response. Maybe this is what you mean. It's certainly not road legal, or even recommended though!

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