Evaluating Chassis Stiffness, any ideas? |
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Evaluating Chassis Stiffness, any ideas? |
McMark |
Jan 26 2007, 03:08 PM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I've been thinking about this for a long time. I would like to be able to quantitatively evaluate chassis stiffness. I have some ideas for increasing stiffness, but I'd like to be able to measure those changes by something other than the seat of my pants ("It feels stiffer.").
My best idea so far is to place a car on three jack stands of equal height and measure the droop of the fourth corner. Any other ideas? Any physicists that can help out here? |
JPB |
Jan 26 2007, 05:13 PM
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#2
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The Crimson Rocket smiles in your general direction. Group: Members Posts: 2,927 Joined: 12-November 05 From: Tapmahamock, Va. Member No.: 5,107 |
I think torsion would be a snap. Just need to ballance the center of the car on a level I-beam. Fix solidly the opposit end of the car you will test. Lets say you want to test the rear, you then fix the front with a little frame bolted to the floor underneath the car. You then use a hydrolic item like Portapower to push and pull on opposit rear corners of the car and use the guages for a reading. You can do the same in the front. You can also test for sag by pulling on all four corners if thats what you want. You can also precamber your chassy and weld it up to stiffen even more. Hey, this sounds like gonna have a party fun (IMG:style_emoticons/default/beer.gif)
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