We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Investigating Vibration Behavior and Damping Characteristics of Different Spring › Reply To: Investigating Vibration Behavior and Damping Characteristics of Different Spring

April 19, 2024 at 2:24 pm
peteroznewman
Subscriber

You have the data flow backward.  Ansys Mechanical doesn't estimate damping ratios. Physical testing measures damping ratios and those measured values are used as inputs to the Ansys model that estimates the system response to vibration loads.

Once you measure a damping ratio, there are equations to calculate the Rayleigh Damping coefficients, but if you use Modal Superpostion methods, you can use the damping ratio directly and use a different value for each mode.