Correctly assess the required amount of force

The NASA, REFA, NIOSH module for RAMSIS Automotive enables the assessment of two-handed lifting movements which are performed repeatedly over a longer period (NASA) and the assessment of the motions involved in lifting and carrying objects (REFA). It also offers a discomfort and maximum force analysis (NIOSH).

Functional highlights

Optimal operation and maintenance


NIOSH analysis

  • Calculation of a recommended load limit
  • Representation of influencing sizes in factors
  • Factors provide pointers for improvements in design and work operations


REFA analysis

  • Calculates individual normal force, maximum force and the associated limit load
  • Addresses a multitude of various influencing variables


NASA Discomfort analysis

  • Joint-related, static-physical whole body evaluation
  • Influences affecting discomfort:
    • degree of utilization N (G)
    • joint point resistance W (G)
    • joint torque M (G)
    • Deviation from reference posture (NASA 0g)
    • Normal force F


Maximum force forecast

  • Analysis of the maximum, tolerable and sustainably achievable force
  • Taken into consideration to achieve this:
    • user-defined joint chain in actual posture
    • body dimensions, gender and age group
    • direction in which the force should be effective


The magazine for ergonomics in the automotive industry

  • Drive differently
    ergonomics in the car of tomorrow
  • New, new, new!
    verification of compliance with norms, RAMSIS in NX, current research
  • Comfort under water
    interior design in submarines
  • China on the move
    ergonomics simulation in the largest growth market
  • Ergonomics at the starting line
    Size NorthAmerica to measure 17,000 persons

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RAMSIS Excellence Award 2019

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Software simulation of operator's view according to ISO 5006

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