Robert Scott wrote: > ... Perhaps it > is a little simpler than the water analogy though, side water > waves are two-dimensional and the waves is a string are > one-dimensional (if you don't consider precession). > > Bob Scott > Ann Arbor, Michigan The wave motion of a struck piano string is exceedingly complex. Visibly it vibrates in two dimensions. What you see in a long bass string is indicative of what is happening higher up in the scale. It's just that further up the scale it happens at a much faster rate and it's a bit hard to see with the unaided eye. There is also an invisible longitudinal mode. To adequately measure the vibrational patterns of the bridge and the plate termination points -- be they agraffes, V-bars, or whatever -- requires the use of three-dimensional accelerometers at both locations. It's not really a one-dimensional problem. -- ddf
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