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A damped spring can't rebound? Where did you get your degree? Sesame street?
It only describes force. The spring pushes against parts of the bike, not the ground.
Ever hear of a lever genius? Do you really work as an engineer again? In 20 years as a professional engineer I've never met anyone that is both as arrogant and yet incompetent as you are.
Yep...all the fat kids with borderline personalities in engineering school that spent there time spanking it and trying understand why I made better grades than them were making fun of me...yep...you bet.
I'm right.
Look at the problem again.
I aced my dynamics class, BTW. I know what I'm talking about, you don't.
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an energy balance? How would you possibly account for losses? You couldn't. It would be pointless.
And it is a simple matter of forces. The only question out there is if the compressed spring can do work. You don't need an energy balance to that. It's extremely simple.
Maybe you are just too smart...we all know really smart guys that don't have a lick of common sense. They see the car isn't running...tear it down to the pistons to find out they didn't have any gas in the tank.
You got nothing in your argument other than arrogance.
Can a compressed spring do work? Easy question...should be an easy answer. Can you do it???
Work = force times distance, of course.
You neglect the reality of the problem. It takes work to compress the spring already. Then the release of the spring is damped. This is to prevent the wheel from hopping. Oddly enough, the old seat bounce argument is really saying that the wheel suddenly hops.
It makes no sense.
MX bikes don't pogo, because they are designed not to.
You guys talk among yourselves and I will be back later to check your work. I gotta go make rockets for America.... "Oh say can you seee..."
Sitting down and compressing the rear suspension creates a more vertical angle of the bike on the jump face, that, combined with acceleration (thrust), creates a more vertical (and higher) leap.
If the spring and its stored energy were capable of creating such rebounding force that it could bounce bike and man over jumps, it would also flip ass over end in the whoops when the rear suspension compressed and rebounded, unless of course your believe that rear suspension magically knows the difference between whoops, jumps and when it's "seat bounce time"
I stated that there were a lot of Motosnoozer's in here lurking as of late. I think its recession related.
I agree with Flarider
Imagine hitting the whoops at full tilt. Legs locked. What happens? Over the bars you go.
It's not a "magic" spring. And it's not about where the energy comes from. It's simple physics. If the spring is loaded to the point it cannot over come the forces applied, it will have no affect. Damping is irrelevant. If spring is not overloaded, then it will have an affect. Are there other elements to the technique? Yes. Altering the trajectory? Sure.
Ever hear of the suspension packing up? That's due to an over damped spring or too soft.
No the spring isn't going rocket you up but you cannot dispute it does in fact return, in a controlled fashion, its stored energy (less energy converted to heat in the shock) and that can and does affect your jump.
Pit Row
fact.
Dont be messin with America's space bus!
We are werkin on the new one here anyway.
No EFI, no carb. This thing, you light it and hang on for 2 minutes, no shutoff.
DNF !!!
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