GreyOwl Posted February 26, 2008 Posted February 26, 2008 Your not wrong Bruce. Its just, ...never mind!! I like you JB...Its all good.
GreyOwl Posted February 26, 2008 Posted February 26, 2008 His speciality is the functioning of the bicycle, so I would say he is an expert. Probably the most qualified expert in SA...
The_Break Posted February 26, 2008 Posted February 26, 2008 Then all is fair.A worthy opponent, when I feel like a debate. Luckily that is very seldom.
bruce Posted February 26, 2008 Posted February 26, 2008 His speciality is the functioning of the bicycle' date=' so I would say he is an expert. Probably the most qualified expert in SA...[/quote'] Me too! But then I'd also say that the functioning of a bicycle probably only needs the first six months of engineering physics to understand. So I reckon Johan has a bit of sparce capacity there
Wonder Woman Posted February 26, 2008 Posted February 26, 2008 The only wobbles I've got are part of me and not the bike, though sometimes they do occur at speed....
The_Break Posted February 26, 2008 Posted February 26, 2008 Now that is a very interesting topic. Your "wobbles" should actually act like dampers. Maybe that is why your bike doesn't get speed wobbles. What do you say Johan? (come on, be a sport and joke a bit... )
straatvark Posted February 26, 2008 Posted February 26, 2008 The only wobbles I've got are part of me and not the bike' date=' though sometimes they do occur at speed.... [/quote'] Now why cant i get a picture of this harmonic out of my mind?
bruce Posted February 26, 2008 Posted February 26, 2008 Now that is a very interesting topic. Your "wobbles" should actually act like dampers. Maybe that is why your bike doesn't get speed wobbles. What do you say Johan? (come on' date=' be a sport and joke a bit... )[/quote'] I'd say she has a high Q-factor and she is underdamped. So her resonant frequency is close to her natural frequency. She needs to put on a couple of kilo's
GreyOwl Posted February 26, 2008 Posted February 26, 2008 I'm an expert on the human body!! But I wont pontificate on the 'wobbliness' of any females body!! Why?! Coz I'm a frigging genius!!!
bruce Posted February 26, 2008 Posted February 26, 2008 I'm an expert on the human body!! But I wont pontificate on the 'wobbliness' of any females body!! Why?! Coz I'm a frigging genius!!! A genius with experience!
The_Break Posted February 26, 2008 Posted February 26, 2008 c < 1? Mmmmmm dF = m * (dx/dt)^2 + c * dx/dt + kx Yes, ok, I agree then. She needs to put on about 2.3573418kg and she will get a speed wobble. That is assuming she is riding Conti Comp and a spoke on her rear wheel is 3% under tension.
bruce Posted February 26, 2008 Posted February 26, 2008 I'm an expert on the human body!! But I wont pontificate on the 'wobbliness' of any females body!! Why?! Coz I'm a frigging genius!!! A genius with experience!
bruce Posted February 26, 2008 Posted February 26, 2008 c < 1? Mmmmmm dF = m * (dx/dt)^2 + c * dx/dt + kx Stop it, you're exciting me And now my stem length has changed!!
The_Break Posted February 26, 2008 Posted February 26, 2008 Well, at least you have increased k then. Should stabilize your bike a bit.
THE BODY CENTRE Posted February 26, 2008 Posted February 26, 2008 http://imgs.xkcd.com/comics/duty_calls.pngxkcd.com *mini hijack* ** sorry!** Thanks Edman!! LOVE this site!
The_Break Posted February 26, 2008 Posted February 26, 2008 oops, that's k * dx and not x.Still want my discount at the Lab.
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