Package cushioning is used to protect items during shipment. Vibration and impact shock during shipment and loading/unloading are controlled by cushioning to reduce the chance of product damage.
Molded expanded polystyrene cushioning
Transit case showing internal shock mounting
End caps and corner blocks
Molded pulp cushioning
Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. Vibration may be deterministic if the oscillations can be characterised precisely, or random if the oscillations can only be analysed statistically.
Car suspension: Designing vibration control is undertaken as part of acoustic, automotive or mechanical engineering.