In whole body vibration and hand vibration, Vibration Dose Value (VDV) calculation provides a measure on severity of the exposure to the vibration with consideration on the effect of vibration magnitude.
1. Crest Factor
2. VDV method
The estimated VDV can be determined using fourth power vibration dose method;
\begin{equation}
Estimated\:Vibration\:Dose\:Level ,eVDV (ms^{-1.75})= [(k \cdot rms(weighted))^4 \cdot (duration,s)]^{1/4}
\end{equation}
k = crest factor
In the case with several vibration magnitudes, the overall VDV can be determined using ;
\begin{equation}
VDV_{total} = (\sum_{i} VDV_{i}^{4})^{1/4}
\end{equation}