- #31
InTheWorks
- 24
- 2
A.T. said:
Thank you. The additional step in between makes it crystal clear.
Optimizing Drumstick Bounce: Finding the Magic Fulcrum Point
- Context: Undergrad
- Thread starter InTheWorks
- Start date
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- Tags
- Centre of mass Fulcrum
Click For Summary
Discussion Overview
The discussion revolves around optimizing the bounce of a drumstick when it is allowed to fall due to gravity, focusing on the placement of the fulcrum along the stick. Participants explore the mechanics of the drumstick as a compound pendulum and the factors affecting its bounce, including the position of the fulcrum, the characteristics of the striking surface, and the dynamics of oscillation.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
- Mathematical reasoning
Main Points Raised
- Some participants suggest that the optimal fulcrum position for maximum bounce is between the center of mass and the butt end of the drumstick, with specific measurements provided.
- Others propose that the stick behaves like a compound pendulum, where the period of bounce is influenced by the pivot position and amplitude.
- One participant mentions that the bounce effect also depends on where the drum is struck, indicating the presence of different modes of oscillation and reflection coefficients.
- There is a discussion about the role of spring forces in the bouncing mechanism, with some participants questioning the omission of these forces in earlier claims.
- Several participants clarify that the maximum bounce fulcrum position is a characteristic of the stick itself and varies between different sticks, rather than something that can be adjusted by the drummer.
- One participant introduces the concept of radius of gyration and its relevance to the period of oscillation for a compound pendulum, expressing uncertainty about its implications.
- There is mention of a specific application related to 'air drums' and how the principles discussed might apply in that context.
Areas of Agreement / Disagreement
Participants express differing views on the mechanics of the drumstick's bounce and the factors influencing it. While there are some shared ideas about the role of the fulcrum and the characteristics of the stick, no consensus is reached on the optimal conditions or the significance of various factors.
Contextual Notes
Limitations include the dependence on specific stick designs, the complexity of oscillation dynamics, and the potential influence of external factors such as the striking surface. The discussion also highlights unresolved mathematical aspects related to the radius of gyration and its effect on the period of oscillation.
Thank you. The additional step in between makes it crystal clear.
- #32
DaveC426913
Gold Member
2025 Award
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Not gonna lie, this honestly what i was expecting when I clicked through.
(Add vectors and numbers to-taste. I dont have Photoshop on me.)
But maybe it would be best to cleave off a thread about general drum physics.
(Add vectors and numbers to-taste. I dont have Photoshop on me.)
Loosely related. I tried playing a bit. I could never figure out to achieve a bass drum beat. The pedal would kick back too fast and aggressively, ruining the rhythm. Probably me being too timid.pinball1970 said:
But maybe it would be best to cleave off a thread about general drum physics.
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