DOT Wheel Tests
DOT Wheel Tests
(OP)
I am in the middle of a discussion on DOT tire testing and the subject of wheel tests has come up. A quick look at the FMVSS regulations doesn't seem to reveal any testing requirements for wheel and rims.
So, is there a DOT test for wheels? If so, what is it?
If not, what do wheel manufacturers use? Is there a standard test?
And if you are knowledgeable on the subject, please explain feel free to fill in the gaps.
Thanks in advance.
So, is there a DOT test for wheels? If so, what is it?
If not, what do wheel manufacturers use? Is there a standard test?
And if you are knowledgeable on the subject, please explain feel free to fill in the gaps.
Thanks in advance.





RE: DOT Wheel Tests
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: DOT Wheel Tests
RE: DOT Wheel Tests
RE: DOT Wheel Tests
1) There are no government required tests for wheels and wheels alone.
2) SAE has published some tests for wheels
3) These SAE wheel tests are the commonly used wheel tests.
RE: DOT Wheel Tests
RE: DOT Wheel Tests
Yes I think you have it about right so far as homologation tests.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: DOT Wheel Tests
So what did you learn about the 3 spoke wheels that might be of interest to a tire engineer?
RE: DOT Wheel Tests
Also of note may be the road hazard impact test. As a supplier, my former employer was never asked to perform this test, but it was starting to see some discussion and popularity amongst our customer's product engineers. Would have been a real bear to try and design a wheel to pass this test, so I was glad it never was required of us.
As a supplier to 1 of the big 3 and several Japanese auto makers with a former employer, we were never required to perform strain gaging - that was for our own information only to assist in determining if FEA was giving us accurate results.
Tim Flater
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RE: DOT Wheel Tests
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: DOT Wheel Tests
ADR 20—Safety Rims
The function of this Australian Design Rule is to specify wheel ‘Rims' that will retain a deflated tyre in the event of a rapid loss of inflation pressure.
/00—This standard ceased to have effect for new vehicles as from 9 December 2003.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: DOT Wheel Tests
I think most folks do not understand that computer modeling needs to be verified - as best as it can be done. I remember working with folks on vehicle handling (Adams, if I remember correctly), and while we couldn't verify the vehicle's tip over point (which was the point of the exercise), we could verify the handling characteristics with out-riggers (to prevent a maneuver from going too far.) That was the best that could be done without risking life and limb.
RE: DOT Wheel Tests
I haven't seen a strain gaged wheel, we do a modal test to get dynamic correlation, and measure the wheelhub loads with a wheel force transducer. Since our wheel/suspension killing events (that ADR isn't the most extreme requirement by a long chalk) also destroy instrumentation we've started doing a lot more with cameras.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: DOT Wheel Tests