Sloshed Liquid Damper
The actual Sloshed Liquid Damper setup and its damped triple pendulum mechanical analogy
Experimental Values of the free oscillation of the mechanical structure without Sloshed Liquid Damper(SLD) in the first picture.The second picture shows the dampening of free oscillations using SLD. (Notice the oscillations in the transient phase)
Sloshed Liquid Damper
This project started my journey of research in dynamics.
It started when a friend approached me to balance the Go Pro attached to his bike economically.
I initially worked on Tuned Mass Dampers but Sloshed Liquid Dampers showed more promise in dampening free vibration.
Most research was done on rectangular shaped dampers in one direction, so an experimental setup was fabricated to know the dynamics of fluid damping using spherical bowl.
The experimental values were satisfactory ( Except that the water acted as dead mass during small oscillations)
Noticing the complexity involved in finding the behavior of water during oscillation inside the bowl, a mechanical pendulum analogy was devised to mimic the first mode oscillation of water assuming the surface of water does not break.
The system was expected to behave like a damped triple pendulum, with the third pendulum incorporating a cubic nonlinear spring.
The mathematical model could not represent the attenuation in the transient phase due to the highly nonlinear wave breaking