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Person-specific evaluation method for occupational exoskeletons - Biomechanical body heat map
Mark Tröster1, Simon Eckstein2, Paula Kennel2
1Fraunhofer Institute for Manufacturing Engineering and Automation, Nobelstraße 12, 70569, Stuttgart, Germany; Institute of Industrial Manufacturing and Management, University of Stuttgart, Allmandring 35, 70569, Stuttgart, Germany.
Digital human models and exoskeletons reduce ergonomic stress in industrial settings. This study validates their effectiveness, highlighting personalized support needs for optimal results.
Area of Science:
- Ergonomics and Human Factors
- Biomechanics
- Occupational Health
Background:
- Ergonomic work design is crucial for economic competitiveness.
- Exoskeletons offer personalized solutions to reduce occupational stress.
- Digital human models (DHMs) can optimize exoskeleton implementation.
Purpose of the Study:
- To apply DHMs for workplace planning in industrial logistics.
- To present a new biomechanical evaluation methodology for exoskeleton effects.
- To validate the efficacy of DHM-based exoskeleton analysis.
Main Methods:
- Utilized DHMs for industrial logistics scenario design.
- Developed and applied musculoskeletal exoskeleton models for four subjects.
- Validated model predictions with EMG data from back muscles.
Main Results:
- Confirmed intended ergonomic support in the lower back.
- Identified unintended effects on knee kinetics with different exoskeleton types.
- Observed significant inter-subject variability in exoskeleton support.
Conclusions:
- DHM-based biomechanical evaluation is effective for analyzing exoskeleton effects.
- Personalized assessment is essential due to inter-subject differences.
- Preliminary validation confirms correlation between modelled and measured exoskeleton support.
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