Yes. The vibrations are kinetic energy already in the system, and additional impacts would add to it. Most of that energy is extremely transient, though, so it might not have as big an impact as you may think. I can't tell if the model takes that into consideration. That would be a question for Peter. I'm still waiting on answers to my questions.Katzenberserker wrote: ↑Wed Sep 04, 2019 10:01 pm If you're right, shouldn't different play styles (fast rolls vs. single hits for instance) excite the drum in different ways then? Hitting an already vibrating head, would sound differnt than one which is not moving, right?
A fully complete model would actually take into account how the phase of the transverse waves traveling through the membrane interfere with the next hit constructively or destructively, depending on the time and location of the hit. The maths are easy, but it would take a lot of computational power to model continuously, and probably wouldn't make much of a difference in the end.