Dynamic amplification factor

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.
 * $$ DAF = \frac$$

Where:
 * $$ M $$ is the mass of the object in air (kg)
 * $$g $$ is the acceleration of gravity (9.81m/s2)
 * $$F_{total}$$ is the largest of $${F_{static-max} + F_{hyd}} $$ or $$F_{static-max} + F_{snap}$$ (N)