Recent content by cavedweller

I have found increasing roll stiffness (which is what i assume the watts link is doing by changing the attachment points) effects the other modes of vibration due to the coupling of the vehicle rigid body modes, not by alot in my experience, maybe 1-2%, but thats why i was asking because im not...

Not sure about GP bikes, but im a very keen DH mountain bike rider and this is the general consensus. The fastest cornering technique is to weight the front wheel so that the rear wheel breaks traction easier. This causes the bike to enter into a drifting condition which can be controlled by...

Interesting. I don't suppose you have the corresponding graphs for bounce and pitch frequency?? Thanks, Matt

Dam, i stuffed up. Where i said "roll axis" i meant "roll center", as in the geometric suspension related point. I hope im clear in what im trying to ask, im well know to muddle things up. My question was do you add the inertia md^2 term from the roll center to the cog which some people do but...

Just trying to get a better understanding of how the sprung mass modes are effected by suspension geometry. There is lots of dis-information out there and it has got me confused. My understanding of the ""roll axis"" is that this is some arbitrary point defined by the intersection of the...

Yeh, i did some more reading on aerodynamic lift and the number the equation outputs is in newtowns, even though you input kg and meters, i really hate non SI equations. Don't i look silly..... Hmmmm.... i thought my figures might at least be close. My understanding is the suspension stiffness...

Thanks for the quick reply Greg. Those figures you quote for unsprung are ball park to what i was using ( which was 70kg front, 150kg rear) The static measurements i took for front and rear were approx 38,000N/m for the front pair excluding tire stiffness (which i assumed was 404,000N/m for the...

Hi guys, Searched over the net, through books, papers and i can't find the info i need. Sorry in advance for all the questions, im hoping some industry guys can help me out. Im tyring to do some 1/2 car simulations of a ford courier / mazda bravo ute (i think they are the same) and without...