Production Ergonomics Evaluation – Needs, Procedures and Digital Human Modeling Tools
Licentiatavhandling, 2009

In production systems, human operators may be at risk for developing work-related musculoskeletal disorders (MSDs), resulting in pain, inability to work and high costs. An increasingly capable tool for identifying MSD risks early in the production design process are Digital Human Models (DHMs), although their built-in analysis tools are in great need of development regarding how they address time-related aspects of load exposure. Some examples of time-related exposure phenomena provoking MSDs are repetitive work patterns, lack of variation, fatigue effects, work rotation effects, and distributions of activity/rest. The aim of this thesis is therefore two-fold; to explore pragmatic industrial needs regarding ergonomics evaluation and compare this to the State-of-the-art of scientific evaluation methods that address time-related aspects. The first approach, a case study in an automotive setting, revealed that switching from one evaluation method to another in a factory may be for pragmatic contextual reasons rather than based on educated selection. It was also shown that companies who do this may unintentionally risk producing evaluation results that are not equal regarding criteria levels or degree of analysis detail, rendering results unsatisfactory to use for some actors in the process. The second approach, a literature review, categorizes several time-related ergonomics terms and has proposed a ‘process-flow’ framework for the terms, based on an inputthroughput- output concept. This framework can give DHM tool developers an overview of which time-related aspects interact and which combinations are suited to different analysis goals. Lastly, the thesis reflects on actor roles and time perspectives.

Digital Human Modeling

Virtual Tools

Prevention

Time

Musculo-Skeletal Disorders

Cumulative

Production Ergonomics

DHM

Delta
Opponent: Göran M. Hägg

Författare

Cecilia Berlin

Chalmers, Produkt- och produktionsutveckling, Produktionssystem

Corporate-internal vs. national standard – A comparison study of two ergonomics evaluation procedures used in automotive manufacturing

International Journal of Industrial Ergonomics,; Vol. 39(2009)p. 940-946

Artikel i vetenskaplig tidskrift

Ämneskategorier

Produktionsteknik, arbetsvetenskap och ergonomi

Annan data- och informationsvetenskap

Övrig annan samhällsvetenskap

Styrkeområden

Informations- och kommunikationsteknik

Produktion

Drivkrafter

Hållbar utveckling

Utgivare

Chalmers tekniska högskola

Delta

Opponent: Göran M. Hägg