SteelHeadz
Super Moderator
what did i miss?:deadhorse:
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spring over question
- Thread starter 89 jeep yj
- Start date
SteelHeadz
Super Moderator
Hey!! who took my Popcorn?
, oh , there it isp0p..
, oh , there it isp0p..
I'm a Builder/ Fabricator and a welder as well, and if i made a mistake on something, i would just admit the fault and let it go. Currupt4130's solution IS a better solution over that "S" rod. and yes, you left yourself wide open on making it out of 1/4 inch rod. Definitely not a good thing to post as an idea to the other members who doesn't have a clue of the aftermath.oh please go ahead i build stuff more complex than a S arm i have been a welder fabricator for 8 years building water towers and mining equipment. but please go into detail for me on how a S arm is a bad idea.
currupt4130
VT Hokie
oh please go ahead i build stuff more complex than a S arm i have been a welder fabricator for 8 years building water towers and mining equipment. but please go into detail for me on how a S arm is a bad idea.
Do you even know what a moment is? If you don't, look it up. It will be the death of your steering.
I don't give a flying rats ass what you've built, you're asking for trouble with an S arm in your steering.
Here's the deal, I drew the s arm, kind of. Where the x is, is where the arm bends again to go to the knuckle.
A moment is a resistance to rotation, in this case the rotation is the rotation is being caused by your steering box pushing the S arm. Or your tire pushing back, whichever.
A moment, is created when you have a force offset from the material it is passing through, it's like a big lever. Lets say there is a pole in the ground, and you try to push it over. If you are pushing on the pole 5 feet up with a force 100 lbs, the pole has a moment at its base of 500ft/lbs. A moment is a resistive force.
In the case of the S arm, the resistance comes at the bends and is due to the offset of the arms design and the pushing on the arm by either the tire or the steering box. If your S arm is offset by 2 feet, and your steering box puts out 200lbs of force, you are creating a 400 ft lb moment around a tiny point. That's the problem. When your steering linkage is straight, you don't have moments, you have a force going straight through the rod to the steering knuckle.
The S arm may hold for a little bit, but if you happen to slam your tire into something, or fatigue the material over time due to the constant moment you create everytime you turn, you're asking for trouble. When you finally overcome the moment at the bend, your system is no longer in equilibrium and you will wind up with a Z arm and not an S arm.
I'm an engineer, screw your water towers.
