Understanding Work Task Assessment Sensitivity to the Prediction of Standing Location

Paper #:
  • 2011-01-0527

Published:
  • 2011-04-12
DOI:
  • 10.4271/2011-01-0527
Citation:
Wegner, D. and Reed, M., "Understanding Work Task Assessment Sensitivity to the Prediction of Standing Location," SAE Technical Paper 2011-01-0527, 2011, https://doi.org/10.4271/2011-01-0527.
Pages:
7
Abstract:
Digital human models (DHM) are now widely used to assess worker tasks as part of manufacturing simulation. With current DHM software, the simulation engineer or ergonomist usually makes a manual estimate of the likely worker standing location with respect to the work task. In a small number of cases, the worker standing location is determined through physical testing with one or a few workers. Motion capture technology is sometimes used to aid in quantitative analysis of the resulting posture.Previous research has demonstrated the sensitivity of work task assessment using DHM to the accuracy of the posture prediction. This paper expands on that work by demonstrating the need for a method and model to accurately predict worker standing location. The effect of standing location on work task posture and the resulting assessment is documented through three case studies using the Siemens Jack DHM software. The paper concludes with recommendation for the development of a method and model that considers task biomechanics for accurate prediction of standing location when performing work task assessments during the design phase of a new vehicle program. The goal is to improve assessment results through more accurate standing location prediction and the resulting posture
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