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Location:
South Australia
Registered:
July 2002
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Re: How to understand "The value of damping force"
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Fri, 23 April 2004 05:00
 
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Do they really have ~ 3 times weaker on rebound than on bump?
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FWDBoy you can sort of feel that the rebound force is at least twice that of the bump force by getting a shock (not installed) and pushing it in and pulling it out by hand... its heaps harder to pull / spread the shock than it is to push it together
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Isn't pulling the shock out 'rebound' btw? So rebound is usually alot stronger than bump? So the 1568/588 quoted at the start of the thread would be rebound/bump?
Yeah ppl, listen to gold28, shocks are not related to ride height/stiffness/etc!
The reason rides are made stiffer is to maintain certain contact patch (due to suspension geometry) on the road whilst cornering at speed. They are also there to reduce impulse forces on a car.
If you are putting a certain amount of force downwards on the suspension, then the system's overall height (system meaning spring + damper (sprung mass, unsprung) etc) will tend to towards an equillibrium that, in laymans terms, depends only on the strength of the spring! The damper merely controls how quickly it reaches that equillibrium, for example, say you have a very stiff bump, then as you enter the corner, the system will smoothly/slowly approach the equillibrium. You may think this is all good, but what if because of the overdamping, the car never really uses much of the outside tyre through corner entry - maybe the driver is very heavy on brakes into a corner and in this case, the driver would like very strong bump damping on the front...What if you under-damp, then it may even oscillate about the equillibrium as you wobble through the corner.
Like gold28 was saying, there are a billion factors that go into the ideal damper settings. It would be very difficult to recommend a damper setting for someone else. The best thing anyone can do before they ask about damper settings is either learn to trust the aftermarket companies to have not made stupid settings, or go and learn alot of maths and vehicle dynamics and then punch some numbers up and get an approxiamte setting that you can look for.
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| | Subject | Poster | Date |
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How to understand "The value of damping force"
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Jayem | Thu, 22 April 2004 16:04 |
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Re: How to understand "The value of damping force"
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oldcorollas | Thu, 22 April 2004 16:12 |
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Re: How to understand "The value of damping force"
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oldcorollas | Thu, 22 April 2004 16:14 |
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Re: How to understand "The value of damping force"
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Jayem | Thu, 22 April 2004 16:26 |
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Re: How to understand "The value of damping force"
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RWDboy | Thu, 22 April 2004 17:18 |
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Re: How to understand "The value of damping force"
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Toobs | Fri, 23 April 2004 00:36 |
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Re: How to understand "The value of damping force"
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RWDboy | Fri, 23 April 2004 03:54 |
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Re: How to understand "The value of damping force"
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gold28 | Fri, 23 April 2004 04:13 |
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Re: How to understand "The value of damping force"
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RWDboy | Fri, 23 April 2004 05:00 |
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Re: How to understand "The value of damping force"
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gold28 | Fri, 23 April 2004 05:13 |
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Re: How to understand "The value of damping force"
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Rex_Kelway | Fri, 23 April 2004 09:10 |
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Re: How to understand "The value of damping force"
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Jayem | Fri, 23 April 2004 10:15 |
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Re: How to understand "The value of damping force"
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william68 | Tue, 27 April 2004 06:39 |
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Re: How to understand "The value of damping force"
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RWDboy | Fri, 23 April 2004 16:03 |
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Re: How to understand "The value of damping force"
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gold28 | Tue, 27 April 2004 03:32 |
