Design
| Enviro |
Astro | Propulsion
| Power | Thermal
| Structures | AD&C
| CDHS |
Test
Every
structure has some characteristic frequency response
that an engineer must consider
to design a stable system.
Frequency
Response
Natural
frequency is the rate of vibration that occurs when
a structure is stimulated by an impulse and then
left undisturbed.
Fundamental
frequency
is the lowest natural frequency.
Resonance
is
structural tendency to vibrate with increased amplitudes
given a force applied at the structure's natural
frequency.
Damping
limits structural response
to applied forces.
