Dynamic amplification factor (original) (raw)

Dynamic Amplification Factor (DAF) or Dynamic Increase Factor (DIF), is a dimensionless number which describes how many times the deflections or stresses should be multiplied to the deflections or stresses caused by the static loads when a dynamic load is applied on to a structure. When lifting an object during a sub-sea operation, the DAF is calculated based on dynamic hydraulic forces or on snap-forces. Where: is the mass of the object in air (kg) is the acceleration of gravity (9.81m/s2) is the largest of or (N)