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  1. kikiturbo

    Mcpherson

    "The KPI is amost zero as well as the scrub. Newer minde why this is so, but it is possible using doubble A-arms. The McP leg would have needed to go throught the wheel and tires. " not necessarily true... as far as the scrub is concerned... MacP struits usually have a large offset between the...
  2. kikiturbo

    FEA on a tube frame chasis using COSMOS

    thanks for your tips... SW2006 / Cosmos has some real trouble when using tubing... I agree.. I found that using solid bars with the same cros section area as the tube I want to use gives me a good idea of where I am heading with my design... and it is simple to do and very very fast.. I...
  3. kikiturbo

    FEA on a tube frame chasis using COSMOS

    thanks for the tip, I have downloaded framework and will try it.. as for the co-ordinates that is not a problem as my model started with a set of points so I have all the co ordinates allready.. cheers vlado
  4. kikiturbo

    FEA on a tube frame chasis using COSMOS

    Hi, I did some experiments with my tube frame,... I first put otgeather a "simplified" version of my frame, as I need to work on my suspension pickup points, but the general measurements are OK.. I used solid bars instead of tubing, as I could not get it to work with tubing... After I placed...
  5. kikiturbo

    FEA on a tube frame chasis using COSMOS

    thanks.. weld stresses are not a concern really, as the frame will be severely overbuilt, as the target torsional stiffness is quite high.. I need to figure out how to do the beam element method in SW 2006... if anyone can share a few "for dummies" tips they would be greatly appretiated.. I...
  6. kikiturbo

    FEA on a tube frame chasis using COSMOS

    I agree with you 100% and I will try with beam elements... as for my solid bar idea... that was primarily for speed, as it works much faster then using a tube in the analisys... and also, since the elements are much stiffer in tension/compression then bending, I thougt about dismissing the...
  7. kikiturbo

    FEA analysis of a tube frame

    wen I did first experiments with cosmos, fillet weld feature worked a treat... the problem was when I wanted to do a bunch of fillets on a real frame... then I had problems with the fillet weld feature... cheers vlado
  8. kikiturbo

    FEA on a tube frame chasis using COSMOS

    >ERT - as far as I am concerned, tube framed spaceframe should be designed around propper triangulation and using tubing mainly in tension/compression is a major design objective for me... one of the main reasons for using FEA is to try a slightly different approach to the design of the floor in...
  9. kikiturbo

    FEA on a tube frame chasis using COSMOS

    Hi, I posted this in the Solidworks section but was instructed to post here as this might be more appropriate section... here it goes.. Hi, I am just starting using SW 06 and am having some problems with modeling and analysis of a spaceframe construction for the car I am making.. as I want to...
  10. kikiturbo

    FEA analysis of a tube frame

    thanks for the tips guys... I will post the same thing in the cosmos section... I am using full COSMOS... by the way.. as for my understanding of FEA, well, I understand the physics of it, as I had it in my lectures some time ago while I was studying... hell, I could even do the calculation...
  11. kikiturbo

    FEA analysis of a tube frame

    Hi, I am just starting using SW 06 and am having some problems with modeling and analysis of a spaceframe construction for the car I am making.. as I want to model it in SW and analyse its torsional stiffness properties... now, the easiest way for me is to use a 3D sketch and make my tube...
  12. kikiturbo

    Ways to get rid of turbo lag

    I think that the main question is specific power... I have driven a number of low and moderate pressure turbocharged engines (let's say 0.4 to 0.8 bar) that deliver between 85 and 100 hp/litre, that have no lag whatsoever, and deliver usable torque almost from idle to max power.... so...
  13. kikiturbo

    Ways to get rid of turbo lag

    equal length 4 cyl exhaust headers for turbo applications I saw had ID of as low as 34 mm... which was good enough for almost 500 HP... small dia exhaust tubing will keep gas flow at high speed, and if you have a single collector right before the turbo you will minimise the effect of...
  14. kikiturbo

    Ways to get rid of turbo lag

    warpspeed..... I think there might be a terminology problem here.... variable nozzle turbines (VNT) have been used as OE on road cars before, like peugeot 405 T16 for example... it is the nes generation of variable geometry (with those little movable airfoils around the turbine wheel - which is...

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