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Even racing cars on circuits see 3g, production cars on durability roads see much more than that. And that's with proper suspensions.

I suggest you figure out the actual specs of the anti vibration mounts, these seem to be a big clue. You'll easily see 2 or 3g with that (hopeless) suspension setup.

Not in the steady state, it just affects the rate at which the butterfly can move. Hang on, bear in mind I've never seen one of these things, I'm just working from first principles.

No, I think it controls the butterfly's position as the primary function. The needle valve probably acts to damp that motion.

Yes the rather puzzling layout drawing deterred me from answering initially, the line from the ball valve/vent to the top of the actuator piston is actually continuous. Funny old drawing.

Ha, how about this? Initially it has a 1:1 lever ratio, but as the large mass descends, the lever ratio (and hence velocity ratio) becomes much larger.

"Wouldn't a teeter totter do what you want?" Problem is anything relying on simple levers ends up with the big mass still moving at whatever the lever ratio is times the speed of the small mass.

I think Sneekster is on the right lines. Drop large mass onto spring, use a ratchet to hold the compression in the spring. Roll the large mass off, replace it with the small mass, and release the ratchet. This doesn't give you 100% of the PE of the large mass because you are also accelerating...

In the steady state the pressure on each side of the piston is equal, but the vent by the base of the spring means that the net force on the piston from the gas, due to the difference in surface area, is resisted by the spring. This opens the ball valve, which allows the pressure on the piston...

To be honest I'd write an Octave script for that. Or if I was lazy, ask ChatGPT to write it and then sort it out myself. Here's one it did earlier. It is wrong.

"Could anyone provide any thoughts on this situation?" I know nothing about pipes but enough about vibration to be dangerous. Dig a 15' trench around your pipe and secure it with skyhooks while the pile is being driven. Could you fabricate a copy of your pipe setup, and stick it on a...

You are also weakening the general area of the bolt ring, ultimately you'd end up with the old 'please tear here' perforations.

NO. The rotational inertia of the disc is the same on Earth as it is on the moon.

...Meanwhile the rest of the world is fitting carbon fibre wheels to save 10 kg? Yeah sorry the agony of working in imperial means I have no feel for the right answer. Wagging it In metric I is about .6 kg m^-2, T=21*.6=12 Nm Hence power is 115*12 W, about 1.5 kW, or 2 hp Well that's different.

An automotive brake rotor doesn't weigh 32 lb.

There's more to the mechanism of a torque wrench than a spring. You'd have to check for wear or compliance in all the pivots and the ratchet and so on.

Leaf springs and coil springs don't sag, beyond a preliminary shift as the abutments (generic) dig in, if they are properly designed and not massively overloaded. Sometimes somebody has a fit of conscience and designs a coil spring so it is coil bound before it yields. In cars that is more by...

Stress_Eng - yes, that is the question and when I get my script working, I'll be able to answer it. The problem with looking at SAE style leaf springs is that they are either multileaf or non constant thickness, rather than simple cantilevered uniform beams like this one, and in reality they...

But that's small beam deflection theory. As the ends move in the moment drops and so the non linear solution is stiffer than the linear one (ultimately of course you end up with two vertical bits in tension, no bending at all). Cheers Greg Locock New here? Try reading these, they might help...

Thanks for finding the s equation, that adds another pipe but at least means i can debug my script Cheers Greg Locock New here? Try reading these, they might help FAQ731-376 http://eng-tips.com/market.cfm?