Register to reply 
Torsional pendulum, logarithmic decrement 
Share this thread: 
#1
Jul2109, 06:33 PM

P: 18

1. The problem statement, all variables and given/known data
The amplitude of a torsional vibration decreases so that the amplitude on the 100th cycle is 13% of the the amplitude of the first cycle. Determine the level of damping in terms of the logarithmic decrement. 2. Relevant equations 3. The attempt at a solution Is this simply ln(100/13)= 2.04 or ln(13/100)= 2.04? 


Register to reply 
Related Discussions  
Torsional Pendulum, Logarithmic Decrement  Introductory Physics Homework  1  
Torsional Vibration  Mechanical Engineering  3  
Axial, torsional and pendulum modes of vibration(harmonic motion)  Introductory Physics Homework  0  
Torsional vibrations  Engineering, Comp Sci, & Technology Homework  0  
Torsional waves?  General Physics  3 