And yes the solder acting as a damper was exactly what my original post said. My original post concerned advice given based on my experience of a similar problem, and in my experience would have solved his problem quickly and free of cost
this, I agree with
but, genuinely, adjusting the caliper properly so as to not have one pad dragging, is the real solution.
I disagree with the last part, if you have an input to an object at it's resonant frequancy then it will resonate, if it's in the audible frequancy range you'll hear it.
I once worked on a car that had a major issue (pre production) and you could creep the car in D and have the brakes howling like banshees (much louder than any old MTB system!)
My rear disc used to do it, Avid J5, Carrera frame, Allipgator disc, sintered pads, it would howl as soon as the brakes got at all warm, cold it didn't.
Organic pads (having more give) made it better (much better), but the only solution I could find was a different (much stiffer) disc (hayes) which fixed it.
I think Avid with the tri-align system are more prone as it reduces the stiffness of the caliper mounting, also the carrera frame may not have been the stiffest in that area anyway.
I now have a stiffer mounted XTR caliper on the back and will be trying the alligator disc again.
It would raise the standards of the physics part of this debate if the main protagonists would let us know the details of their qualifications, relevant experience (forums don't count) and published papers. Followed by another explanation of their point of view
I disagree with the last part, if you have an input to an object at it's resonant frequancy then it will resonate, if it's in the audible frequancy range you'll hear it.
if the main protagonists would let us know the details of their qualifications, relevant experience
B.Sc in Engineering (mechanical) and 23 years working in the automotive field in powertrain development including Fuel system/exhaust/cooling, calibration (mapping EMS), Diesel Common rail fuel systems and clutches, plus some other stuff along the way, all while working at/for OEM's direct or through their Tier 1 suppliers (Rover, VW, Ford, Jag-land Rover, Ricardo, Cosworth)
but, genuinely, adjusting the caliper properly so as to not have one pad dragging, is the real solution.
Oh right.
From what I understood, the op had a dragging caliper, so noise while NOT braking. Fix the dragging (ie sort the caliper) = remove the stimulus = get no noise. The disc would still be prone to resonance, but if no stimulus, that doesn't matter, no?
It would raise the standards of the physics part of this debate if the main protagonists would let us know the details of their qualifications, relevant experience (forums don't count) and published papers. Followed by another explanation of their point of view
In order. Absolutely none, have fiddled with bikes in the past, absolutely none.
Which makes me eminently suitable as a forum genius, and don't you forget it.
My point of view - cydrandomnumber is funny, in a sad way.
but, genuinely, adjusting the caliper properly so as to not have one pad dragging, is the real solution.
Oh right.
From what I understood, the op had a dragging caliper, so noise while NOT braking. Fix the dragging (ie sort the caliper) = remove the stimulus = get no noise. The disc would still be prone to resonance, but if no stimulus, that doesn't matter, no?
We've gone far beyond the OP and his problem - let's face it, he probably got it completely fixed two and a half months ago, when either he or some other party sorted out that dragging caliper.
Posts
yes it does
what does constructive interference have to do with the motion?
please explain "a null" in this context
no, but it would oscillate in a different way, clamping simply changes the nature of the whole system.
this, I agree with
but, genuinely, adjusting the caliper properly so as to not have one pad dragging, is the real solution.
Iron Horse Ojiki
Carrera Kraken
The Carrera Hardtail owners thread
I once worked on a car that had a major issue (pre production) and you could creep the car in D and have the brakes howling like banshees (much louder than any old MTB system!)
My rear disc used to do it, Avid J5, Carrera frame, Allipgator disc, sintered pads, it would howl as soon as the brakes got at all warm, cold it didn't.
Organic pads (having more give) made it better (much better), but the only solution I could find was a different (much stiffer) disc (hayes) which fixed it.
I think Avid with the tri-align system are more prone as it reduces the stiffness of the caliper mounting, also the carrera frame may not have been the stiffest in that area anyway.
I now have a stiffer mounted XTR caliper on the back and will be trying the alligator disc again.
XM-057 rigid 29er
last bit of which post?
Iron Horse Ojiki
Carrera Kraken
The Carrera Hardtail owners thread
Oh right.
From what I understood, the op had a dragging caliper, so noise while NOT braking. Fix the dragging (ie sort the caliper) = remove the stimulus = get no noise. The disc would still be prone to resonance, but if no stimulus, that doesn't matter, no?
Iron Horse Ojiki
Carrera Kraken
The Carrera Hardtail owners thread
Which makes me eminently suitable as a forum genius, and don't you forget it.
My point of view - cydrandomnumber is funny, in a sad way.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools
what counts as a main protagonist?
Iron Horse Ojiki
Carrera Kraken
The Carrera Hardtail owners thread
On the internet you can be an 18 yr old sex goddess, if you want.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools
We've gone far beyond the OP and his problem - let's face it, he probably got it completely fixed two and a half months ago, when either he or some other party sorted out that dragging caliper.
Anyone who's not talking about a dragging caliper, and isn't obviously taking the p!$$
XM-057 rigid 29er
lolita_3001414, is that you?
XM-057 rigid 29er
Parktools :?:SheldonBrown