Sorry but seeking clarity on DES

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FYI: google 101 - Go dispute semantics this with google.com

dampening - definition of dampening by the Free Online Dictionary, Thesaurus and Encyclopedia. ;)



-- this comment makes no sense with regards to DES. The numbers (scale?) on DES relate to how open or closed the "dampening" circuit is, which affects the flow rate of oil. ie. The higher the number the more open the circuit.

While were on semantics
Changing the compression "dampening" changes the flow rate of oil which changes the rate of suspension compression NOT the distance it compresses. ;)


-- geesh.....we are talking about suspensions, not "getting things moist" :)
 
So correction and repeated for clarity:

Compression - low DES numbers for a firmer ride
Rebound - high DES numbers for more rebound (quicker return)
 
QUOTE <littlejohn>:
While were on semantics
Changing the compression "dampening" changes the flow rate of oil which changes the rate of suspension compression NOT the distance it compresses.

-- its both....increasing the rate of flow, allows the distance the fork/shock travels to increase as well......the original post was "seeking clarity".....i tried to help by making it clear & easily understood

-- you are incorrect about your use of the word dampening vs. dampen
 
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FYI: google 101 - Go dispute semantics this with google.com

dampening - definition of dampening by the Free Online Dictionary, Thesaurus and Encyclopedia. ;)



-- this comment makes no sense with regards to DES. The numbers (scale?) on DES relate to how open or closed the "dampening" circuit is, which affects the flow rate of oil. ie. The higher the number the more open the circuit.

I'm not sure I follow your comment. "dampening" refers to the resistance to motion being described. In this case it's when the fork/shock is going into compression. Therefore INCREASING compression "dampening" (closing the circuit or lower number on the DES "scale") would REDUCE the rate of suspension travel or in your words the "distance" fork/shock compresses.

While were on semantics
Changing the compression "dampening" changes the flow rate of oil which changes the RATE of suspension compression NOT the distance it compresses. ;)
ie. The "distance" the fork or shock compresses is more often referred to as travel.

PS. I don't dispute your correction of damping vs dampening. Yours is the correct word in reference to engineering. But this is an internet forum after all and I don't often proof my posts before submitting. People get the gist and that's what's important ;)

You are in fact correct in the description of damping forces, and the increase and decrease of them - i corrected my post(s) to reflect it.....i think it was your use of dampen (dampening(to moisten)?, which doesn't exist in context with damping forces that thru me off) :eek:

-- just joking with you, and i hope you take it as such :D
 
You are in fact correct in the description of damping forces, and the increase and decrease of them - i corrected my post(s) to reflect it.....i think it was your use of dampen (dampening(to moisten)?, which doesn't exist in context with damping forces that thru me off) :eek:

-- just joking with you, and i hope you take it as such :D

Apology accepted... lol j/ks

nothing wrong with a bit of moisture between friends ;)
 
FYI: google 101 - Go dispute semantics this with google.com

dampening - definition of dampening by the Free Online Dictionary, Thesaurus and Encyclopedia. ;)



PS. I don't dispute your correction of damping vs dampening. Yours is the correct word in reference to engineering. But this is an internet forum after all and I don't often proof my posts before submitting. People get the gist and that's what's important ;)

Either is correct. As far as the correct word in reference to engineering......go argue with the U.S. Patent office.
Patent US6676105 - Self-contained hydraulic dampening for a solenoid operated spool valve - Google Patents
 
no thanks.....Websters is my source :)

Not trying to flog a dead horse or anything, but your comments regarding the use of damping vs dampening, got me questioning my grasp of the english language, so I looked up the online webster.

used as a transitive verb in reference to suspension motion, dampening would appear to be valid.

Dampening - Definition and More from the Free Merriam-Webster Dictionary

transitive verb
1: to check or diminish the activity or vigor of : deaden

The online oxford dictionary also concurs
dampen: definition of dampen in Oxford dictionary (British & World English)

verb
2 make less strong or intense:
reduce the amplitude of (a sound source):
slider switches on the mixers can dampen the drums


Damping on the other hand is a noun

damping: definition of damping in Oxford dictionary (British & World English)

noun
[mass noun]
1 technical a reduction in the amplitude of an oscillation as a result of energy being drained from the system to overcome frictional or other resistive forces.
a mechanism for bringing about damping.
a method of bringing about a reduction in oscillatory peaks in an electric current or voltage using an energy-absorbing or resistance circuit:
menu-driven operation for the setting of other parameters such as meter damping


So I guess, both are correct. It just depends on whether we're referring to the actual damping circuit which dampens the suspension motion. (compression or rebound)

If I were to now go back to the post that started all this, the more grammatically correct version should read like this.


******************************************************************

Perhaps don't think of it as hard or soft, but in terms of more dampening or less dampening. OR smaller hole (more dampening) or bigger hole (less dampening) for oil to flow through.

The lower the number the more dampening (smaller hole) and the higher the number the less dampening (larger hole).
The idea being that the damping circuits controls the monkey motion, to maximise the amount of time the tyres stay in contact with the ground.

If you find you're blowing through your suspension travel, whether it be on a rough section of road/track or under braking. Then you need to increase the compression dampening (smaller number on DES)
If you find that the wheels are just bouncing off everything and your kidneys have fallen out, then decrease compression dampening.

Rebound damping is set to as little as possible (Higher number) yet still prevent the bike from wallowing? or bouncing around like a pogo stick.

In addition to all this, compression and rebound damping is independent of each other. ie, just because you change one, it doesn't mean that you need to change the other. In fact it is more common to change compression damping a little here and there to manage weight transfer front to back under braking or acceleration.
(In more advanced suspension setups, the pitching under braking or acceleration can be controlled independently of bump or road impact absorption via low speed compression vs high speed compression circuits.)

Rebound damping will often remain untouched once you get it right.

*******************************************************************
 
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Not trying to flog a dead horse or anything, but your comments regarding the use of damping vs dampening, got me questioning my grasp of the english language, so I looked up the online webster.

used as a transitive verb in reference to suspension motion, dampening would appear to be valid.

Dampening - Definition and More from the Free Merriam-Webster Dictionary

transitive verb
1: to check or diminish the activity or vigor of : deaden

The online oxford dictionary also concurs
dampen: definition of dampen in Oxford dictionary (British & World English)

verb
2 make less strong or intense:
reduce the amplitude of (a sound source):
slider switches on the mixers can dampen the drums


Damping on the other hand is a noun

damping: definition of damping in Oxford dictionary (British & World English)

noun
[mass noun]
1 technical a reduction in the amplitude of an oscillation as a result of energy being drained from the system to overcome frictional or other resistive forces.
a mechanism for bringing about damping.
a method of bringing about a reduction in oscillatory peaks in an electric current or voltage using an energy-absorbing or resistance circuit:
menu-driven operation for the setting of other parameters such as meter damping


So I guess, both are correct. It just depends on whether we're referring to the actual damping circuit which dampens the suspension motion. (compression or rebound)

If I were to now go back to the post that started all this, the more grammatically correct version should read like this.


******************************************************************

Perhaps don't think of it as hard or soft, but in terms of more dampening or less dampening. OR smaller hole (more dampening) or bigger hole (less dampening) for oil to flow through.

The lower the number the more dampening (smaller hole) and the higher the number the less dampening (larger hole).
The idea being that the damping circuits controls the monkey motion, to maximise the amount of time the tyres stay in contact with the ground.

If you find you're blowing through your suspension travel, whether it be on a rough section of road/track or under braking. Then you need to increase the compression dampening (smaller number on DES)
If you find that the wheels are just bouncing off everything and your kidneys have fallen out, then decrease compression dampening.

Rebound damping is set to as little as possible (Higher number) yet still prevent the bike from wallowing? or bouncing around like a pogo stick.

In addition to all this, compression and rebound damping is independent of each other. ie, just because you change one, it doesn't mean that you need to change the other. In fact it is more common to change compression damping a little here and there to manage weight transfer front to back under braking or acceleration.
(In more advanced suspension setups, the pitching under braking or acceleration can be controlled independently of bump or road impact absorption via low speed compression vs high speed compression circuits.)

Rebound damping will often remain untouched once you get it right.

*******************************************************************

-- thats some good research !
 

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