what about stress/ bolt pattern/ design determines the manufacture of a wheel?
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From: Atlantis
what about stress/ bolt pattern/ design determines the manufacture of a wheel?
I've always wondered why some wheels are 5-lug and 5-spoke, whereas some are 4-lug and 8-spoke... by design.
But then there are some wheels like a te37 which are 6-spoke and have both 4 and 5 lug bolt patterns available.....
From a manufacturing and FEA point of view, doesn't the multiples of the spokes make sense to have a relation to the number of lugs? (i.e. mf10's for 5-lug and mf8's for 4-lug, etc?)
I know there probably isn't a simple explanation for this, but perhaps we could start the discussion here?
But then there are some wheels like a te37 which are 6-spoke and have both 4 and 5 lug bolt patterns available.....
From a manufacturing and FEA point of view, doesn't the multiples of the spokes make sense to have a relation to the number of lugs? (i.e. mf10's for 5-lug and mf8's for 4-lug, etc?)
I know there probably isn't a simple explanation for this, but perhaps we could start the discussion here?
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From: Sherman Oaks, CA, United States
Re: (Black R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R »</TD></TR><TR><TD CLASS="quote">nobody has any clue, eh?</TD></TR></TABLE>
Because for 99% of the wheels made, the number of spokes, shape, and overall design are chosen for asthetic purposes, not strength purposes.
Besides that, lugs are in a circle. The mounting surface should be able to distribute the load evenly across all spokes, no matter the number or relation to the lug pattern. Unfortunately, if you wanted to discuss this part further, I'm out of my knowledge level, so someone else would have to chime in.
Because for 99% of the wheels made, the number of spokes, shape, and overall design are chosen for asthetic purposes, not strength purposes.
Besides that, lugs are in a circle. The mounting surface should be able to distribute the load evenly across all spokes, no matter the number or relation to the lug pattern. Unfortunately, if you wanted to discuss this part further, I'm out of my knowledge level, so someone else would have to chime in.
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Re: (TunerN00b)
Generally for a bolted-flange type of connection, the bolts provide a large clamping force. So large that friction across the metal-to-metal interface supports the shear load. The bolts themselves shouldn't be in shear, and therefore the bolts themselves don't really provide local loading. I imagine a wheel mounting flange would be designed the same way.
Once away from the bolt circle, they seem to be designed for style. Not for minimum weight. (most wheels anyway...)
Once away from the bolt circle, they seem to be designed for style. Not for minimum weight. (most wheels anyway...)
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From: Atlantis
valid points, however I've noted at least one wheel mfr has determined through testing that their 5-bolt wheels needed a 5-spoke derivitave, and a 4-bolt wheel needed a 4-spoke as well... it wasn't coincidence, and they did indeed alude to the fact that there were stresses on the wheels that determined how the wheel had to be designed to take the abuse of the intended motorsports (rr/ax).
I'll try to dig up the mfr/ thread.....
I'll try to dig up the mfr/ thread.....
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