Chevrolet Corvettes and Independent Rear Suspension - The Power Of Independence - Tec
07-26-2013, 09:03 AM
#1
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Chevrolet Corvettes and Independent Rear Suspension - The Power Of Independence - Tec I thought this was a great article explaining how IRS cars can go fast without breaking the things V's love to break.
http://www.gmhightechperformance.com...ar_suspension/
http://www.gmhightechperformance.com...ar_suspension/
07-26-2013, 12:24 PM
#4
Basically, the thing to note (and this goes for every breakable object on your car, including the rotating assembly of your engine) is that manufacturer's component designs are based on calculated steady-state and transient stresses and a design lifetime requirement that the engineers were expected to meet.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
Last edited by FuzzyLog1c; 07-26-2013 at 12:29 PM.
07-26-2013, 04:35 PM
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Basically, the thing to note (and this goes for every breakable object on your car, including the rotating assembly of your engine) is that manufacturer's component designs are based on calculated steady-state and transient stresses and a design lifetime requirement that the engineers were expected to meet.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
07-26-2013, 04:37 PM
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Basically, the thing to note (and this goes for every breakable object on your car, including the rotating assembly of your engine) is that manufacturer's component designs are based on calculated steady-state and transient stresses and a design lifetime requirement that the engineers were expected to meet.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
Just when I thought you couldn't sound any more like a douche lol 
07-26-2013, 04:52 PM
#7
Basically, the thing to note (and this goes for every breakable object on your car, including the rotating assembly of your engine) is that manufacturer's component designs are based on calculated steady-state and transient stresses and a design lifetime requirement that the engineers were expected to meet.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
and you have a *** load of post
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07-27-2013, 02:10 AM
#8
Basically, the thing to note (and this goes for every breakable object on your car, including the rotating assembly of your engine) is that manufacturer's component designs are based on calculated steady-state and transient stresses and a design lifetime requirement that the engineers were expected to meet.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
The design driver for both electrical and mechanical equipment is almost ALWAYS an anticipated transient condition under the worst-case combination of ambient temperature and cooling conditions (or voltage and frequency conditions).
So, in essence, transient forces are the real killer. Reduce those transients, and although the higher stresses that your modded car is capable of producing will reduce the operating life of your parts, you're unlikely to get the dreaded sudden "snap" and leave a couple thousand dollars worth of carnage on the road behind you.
Fun fact- the mpc4 12c did standing starts while towing a f150. This is a vehicle that is meant to go around corners and live in a high speed realm, but they dragged a f150 around the hot desert to make sure the drive train was robust. that and those guys have too much fun with their jobs.
another fun fact in an odd way, the cobra ( terminator) did a serious amount of stand launches during its development to fix a drivetrain issue. even thought people complain about them having irs issues, those issues normally come from situations that are outside normal development testing.
When I am out validating features in development vehicles, we have certain test procedures but a good amount of the time we are doing tests which reproduce issues real customers face in addition to trying to find some of the most extreme environments to spend time at. What you said might hold water with people who design motor mounts or something, but at some point you try to break things just to say you can break them and learn how they broke.
07-27-2013, 02:34 AM
#10
no ohh snap needed, just pointing out how i see it from my angle. You can design a part for many things but real life throws all that out of the water once people start driving them in development.
those guys are the customers first line of defense when it comes to seeing what works and fails. If you just rely upon what a calculation says without turning a wheel in anger you have failed and your customers will suffer.
those guys are the customers first line of defense when it comes to seeing what works and fails. If you just rely upon what a calculation says without turning a wheel in anger you have failed and your customers will suffer.
07-27-2013, 05:29 AM
#11
no ohh snap needed, just pointing out how i see it from my angle. You can design a part for many things but real life throws all that out of the water once people start driving them in development.
those guys are the customers first line of defense when it comes to seeing what works and fails. If you just rely upon what a calculation says without turning a wheel in anger you have failed and your customers will suffer.
those guys are the customers first line of defense when it comes to seeing what works and fails. If you just rely upon what a calculation says without turning a wheel in anger you have failed and your customers will suffer.
What surprises me is GM's reaction to complaints about the drivetrain. They've got some very smart guys up there in legal--with only about a thousand or so sold each year (less than 0.5% of their CTS sales), I think the chances of a class action suit was considered to be remote. Therefore, no recall was necessary. A gamble, but a well-calculated one.
Last edited by FuzzyLog1c; 07-27-2013 at 06:13 AM.
07-27-2013, 12:56 PM
#15
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Did he go back and ninja-edit his post, because I don't see anything that should have prompted such moronic comments.
Wait, I guess I should be 
ing that score!
No gamble required - recalls are for safety-related defects. Breaking your diff leaving a stop light too hard isn't a safety issue. Not to mention that I think forums like these tend to exaggerate the prevalence of problems.
07-27-2013, 04:10 PM
#16
And thanks for the correction--being intelligent doesn't mean that I know my facts on any given subject. FWIW, I did a quick check against Wikipedia and couldn't find the sales numbers. Had to try my memory. So... in summary, I'm capable of sounding just as retarded as anyone else (which, because of my attitude, which makes it sound a million times worse).
07-27-2013, 11:36 PM
#17
the cts-v has zero saftey defects if i recall so there is no reason for a recall. Also Gm and any other manf only cares about people who buy new vehicles. The first gen cts-v is probably 4 generations old so why should people complaining about motor mounts or other wear items? and the diff issue is mostly noise based when you look outside of forums.
07-28-2013, 05:23 PM
#19
the cts-v has zero saftey defects if i recall so there is no reason for a recall. Also Gm and any other manf only cares about people who buy new vehicles. The first gen cts-v is probably 4 generations old so why should people complaining about motor mounts or other wear items? and the diff issue is mostly noise based when you look outside of forums.
A common one is the GM 10-bolt rear and 8.25" front on the half-ton trucks. If you took the small sample size of complainers who have blown up their half-ton differentials, you'd think that everyone with a GM truck had the same thing happen, when in all reality it's a very small--albeit very vocal--part of an otherwise large base of owners who *haven't* had any problems.
