How to model a vibrating stick

  • Context: Undergrad 
  • Thread starter Thread starter mnb96
  • Start date Start date
  • Tags Tags
    Model Vibrating
Click For Summary
SUMMARY

This discussion focuses on modeling the vibrations of a thin metal stick anchored at one end. Key parameters for accurate modeling include mass, center of gravity, stiffness, damping, and orientation relative to gravity. The impact of the medium on damping is also critical, as air resistance differs significantly from that in water. The discussion emphasizes the importance of considering these factors to prevent structural failure when the stick is subjected to force.

PREREQUISITES
  • Understanding of basic mechanics and dynamics
  • Familiarity with vibration theory
  • Knowledge of material properties such as stiffness and damping
  • Concept of center of gravity and its influence on stability
NEXT STEPS
  • Research "Vibration analysis techniques" for deeper insights into modeling vibrations
  • Study "Finite Element Analysis (FEA)" for simulating the behavior of structures under stress
  • Explore "Damping mechanisms in fluids" to understand how different mediums affect vibration
  • Learn about "Modal analysis" to identify natural frequencies and modes of vibration in structures
USEFUL FOR

Engineers, physicists, and students in mechanical engineering or materials science who are interested in understanding the dynamics of vibrating systems and their practical applications.

mnb96
Messages
711
Reaction score
5
Hello.
Let's assume I have a thin metal stick (or other material) anchored to a wall at one extremity (A), and free to move on the other extremity (B).
If I push down the extremity B and then release it, the stick starts to vibrate for some time (especially in the points closer to B).
If I push it too much it may even break.

What are the quantities that I should consider in order to model fairly accurately the behavior of such a system?
 
Physics news on Phys.org
Check out this illustration and read the entire article:

http://en.wikipedia.org/wiki/Vibration#Illustration_of_a_multiple_DOF_problem

mass, center of gravity, maybe shape of the "stick" stiffness and damping would be major parameters...also orientation relative to gravity...

depending on what you are doing, damping in air would be different than in, say, water...

a really wide but thin stick would encounter a lot of air resistance; a thin round stick perhaps negligible air resistance...

Be sure to check "SEE ALSO" listings at the bottom of the Wikipedia article for further information
 

Similar threads

Undergrad How long would a tuning fork vibrate in vacuum?
  • · Replies 27 ·
Replies
27
Views
4K
Graduate How Can Vibration Damping Materials Reduce Machine Noise?
  • · Replies 1 ·
Replies
1
Views
2K
Issues with SLS Model for Rubber and Foam Compression Tests
  • · Replies 5 ·
Replies
5
Views
967
Graduate How does a Western free reed work? (musical instruments)
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Please Explain Elementary Physics Elevator Question
  • · Replies 22 ·
Replies
22
Views
1K
Fracture Energy for JH2 Model (Ceramics and FEA)?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Best way to quantify how well a model fits data
  • · Replies 20 ·
Replies
20
Views
3K
Undergrad Feynmann's connection machine model
  • · Replies 1 ·
Replies
1
Views
3K
Graphing a spring mass collision with a wall
  • · Replies 2 ·
Replies
2
Views
2K
What causes ‘Sticking’ in pharmaceutical tablets?
  • · Replies 8 ·
Replies
8
Views
6K