Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Required Rest Time

Relaxation requirements to measures of fatigue

Sponsored Links

Required rest or relaxation time related to working time and power expenditure can be estimated as:

tr = tt (qt - qm) / (qt - qr)                                    (1)

where

tr = required relaxation or rest time (minutes)

tt = task or work time (minutes)

qt = task or work power consumption (W, watts)

qm = maximum power consumption level in a day with no recovery requirement (W, watts) (approximately 350 Watts for most male workers, approximately 300 W for most female workers)

qr = resting power consumption (W, watts) (commonly between 70 - 100 W)

Example - Required Relaxation Time

Required rest time for a male worker in very heavy work with task power consumption 600 W, resting powewr 100 W and task time 60 min, can be calculated as

tr = (60 min) ((600 W) - (350 W)) / ((600 W) - (100 W))

    = 30 min

Sponsored Links

Related Topics

Related Documents

Tag Search

  • en: rest time relaxation measures fatigue
Sponsored Links

Search the Engineering ToolBox

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate this page to
About the Engineering ToolBox!
.

close

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

1 15

Sponsored Links