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On the Stochastic Nature of the Reach of People
Technical Paper
2007-01-2479
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper the influence of dimensional variability of the arm on the reach in a given operational space is studied. The arm is modeled as a two-linked planar manipulator using the upper and lower arm dimensions from a public domain anthropometric database. The probability of reach for different points is determined assuming independent distribution, dependent distribution, constant proportion and identical percentiles for the two links in the dyad. The computed probability distribution is then used to understand the implication of these assumptions on the interpretation of reachability of points in the operational space by the given population. Results from the dependent distribution are found to be closest to those obtained from raw data. The quality of reach within the workspace is studied using average condition number corresponding to the reach configuration of different individuals at different points in the workspace. The combined effect of the variation in stature and arm dimensions is also studied and found to be substantial. The study would be useful in developing stochastic digital human models for their effective usage in carrying out the ergonomic analysis of man/machine interfaces.
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Authors
Citation
Reddy, S. and Sen., D., "On the Stochastic Nature of the Reach of People," SAE Technical Paper 2007-01-2479, 2007, https://doi.org/10.4271/2007-01-2479.Also In
References
- Sanders M. S. McCormick E. J. Human Factors In Engineering and Design McGraw-Hill, INC
- Venema S.C. Hannaford B. A probabilistic representation of human workspace for use in the design of human interface mechanisms IEEE Transactions on Mechatronics 2001
- Faraway J.J. Modeling reach motions using functional regression analysis SAE 2001
- Faraway J. J. Regression modeling of motions with endpoint constraints The Journal of Visualization and Computer Animation 2003 14 31 41
- Roebuck J.A. et al Engineering Anthropometry methods Wiley-Interscience publication 1975
- Robinette K.M. McConville J.T. An Alternative to Percentile Models. SAE Technical Paper 810217 , Society of Automotive Engineers, Warrendale PA. 1982
- Porter J.M. et al. ‘Beyond Jack and Jill’: designing for individuals using HADRIAN International Journal of Industrial Ergonomics 33 2004 249 264
- Seo H. Thalmann N. M. An Automatic Modeling of Human Bodies from Sizing Parameters.ACM SIGGRAPH Symposium on Interactive3D Graphic s Proc. 19 26 2003
- Dean J. Briiwer M. Control of human arm movements in two dimensions: paths and joint control in avoiding simple linear obstacles Exp Brain Res 1994 97 497 514
- Wolpert D.M. et.al. Are arm trajectories planned in kinematic or dynamic coordinates? An adaptation study Exp Brain Res 1995 103 460 470
- Miall R. C. Haggard R N. The curvature of human arm movements in the absence of visual experience Exp Brain Res 1995 103 421 428
- Sanger T.D. Human Arm Movements Described by a Low-Dimensional Superposition of Principal Components The Journal of Neuroscience. February 1 2000 20 3 1066 1072
- Anthropometry of infants, children, and youths to age 18 for product safety design. UM-HSRI-77-17 Report 1977 Highway safety research institute The University of Michigan, Michigan.
- Kennedy K.W. Reach Capability of Men and Women: A three-Dimensional Analysis. Jul 1978
- Parkinson M.B. Reed M.P. Optimizing Vehicle Occupant Packaging Technical Paper 2006-01-0961 . SAE
- Reed M.P. Flanagan C.A.C. Anthropometric and Postural Variability: Limitations of the Boundary Manikin Approach Technical Paper 2000-01-2172 . SAE