Mode shape from frf

1. What determines mode shape?
2. What is mode shape in FEA?
3. What is mode shape of a structure?
4. What does FRF stand for vibration?

What determines mode shape?

The mode shape is determined by identifying the amplitude and phase of the FRF at the natural frequency for every DOF (point and direction) on the structure.

What is mode shape in FEA?

A mode shape is the deformation that the component would show when vibrating at the natural frequency. The terms mode shape or natural vibration shape are used in structural dynamics.

What is mode shape of a structure?

A mode shape is a deflection pattern related to a particular natural frequency and represents the relative displacement of all parts of a structure for that particular mode.

What does FRF stand for vibration?

A Frequency Response Function (FRF) is a function used to quantify the response of a system to an excitation, normalized by the magnitude of this excitation, in the frequency domain.