Quote:
Originally Posted by garynortheast
Logic would dictate that the heavier the end weight the more effective it would be (to this here uninformed plebian at any rate), so I would hazard a guess and say the ally end weights won't work as well as heavier steel ones.
I shall now wait for someone to come along and tell me otherwise.  |
My knowledge of physics has waned, but I think it's a bit more complicated than that.
As I recall: Generally, yes, a heavier weight will damp more due to higher natural mechanical inertia resisting movement. But that same inertia that resists movement from rest can also work against the situation, keeping it moving once it's started (remember we're only dealing with small movements of the bars, but movement nonetheless). So technically there are also other mechanical system design considerations to take into account to avoid undesirable positive mechanical feedback and resonance effects. Sometimes, less is more! I hope that makes some sort of sense to you.
The precise 'at risk' natural frequency point will depend on things like length of bar from clamp, stiffness, mass of bar-end weight, bike suspension performance etc. so I can't offer any helpful way to know if the lighter ally bar ends will be enough, other than "try 'em and see how they feel". Sorry!