Validation of Predicted Posture for the Virtual Human SantosTM

Yang, Jingzhou; Rahmatalla, Salam; Marler, Timothy; Abdel‐Malek, Karim; Harrison, Chad

doi:10.1007/978-3-540-73321-8_58

Cited by 28 publications

(20 citation statements)

References 13 publications

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“…The validation work was also presented in conferences Yang et al, 2007b). The hypothesis is that human performance measures (cost functions) govern human motion.…”

Section: Methodsmentioning

confidence: 99%

Human reach envelope and zone differentiation for ergonomic design

Yang

Abdel‐Malek

2008

Hum Ftrs & Erg Mfg Svc

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In human-centric design, the human reach envelope is one of the most important components to help layout design for workstations, vehicles, and aircrafts. It also can help people to study the range of motion of different body segments. Various methods have been developed to determine human reach envelopes. This article presents different methods and common challenges. Human reach envelopes only give feedback concerning whether a point is reachable. This is not enough for the designers. The more important information the designers need to know is the zones with different discomfort levels. This capability is a powerful tool for ergonomic designers. In addition, a methodology for workspace solid zone differentiation or surface zone differentiation in the three-dimensional space is presented.

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“…The validation work was also presented in conferences Yang et al, 2007b). The hypothesis is that human performance measures (cost functions) govern human motion.…”

Section: Methodsmentioning

confidence: 99%

Human reach envelope and zone differentiation for ergonomic design

Yang

Abdel‐Malek

2008

Hum Ftrs & Erg Mfg Svc

Self Cite

View full text Add to dashboard Cite

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“…In ergonomics evaluation however, it is important that movements correspond to how a real human would move. Therefore, in those evaluation tools that are capable of dynamical movement simulation, movements are typically based on, or have been validated by comparison with, real human movements numerically quantified in the metric space [e.g., 8]. Since our approach aims at product evaluation, which includes ergonomics aspects, we have focused our review of related work on contributions from an ergonomics perspective where physical correctness and naturalness have been interpreted more strictly.…”

Section: Related Workmentioning

confidence: 99%

“…Santos is a virtual human manikin provided that can generate transitional motion patterns between pairs of arbitrary start and end postures [8,14]. A similar approach was presented in [15].…”

Section: Related Workmentioning

confidence: 99%

“…At the time of starting our project, no validated models were known to be available and we did not consider it feasible to develop them with the available resources. However, in the meantime new developments have indicated that, with some limitations, simulation of motor control based on validated models is possible (see Section 2, references [8,13,15]). …”

Section: Motor Control Models Of Human Motionmentioning

confidence: 99%

“…It has to convert the logistic events from the scenario bundle to quantitative control values for the simulation. For the proxy we adopted an approach often taken in programming robotic human-body imitations, where programmed instruction are typically logic-based, and aimed at obtaining successful interaction results rather than at realistic motions during the interaction 8 . In the same manner we have 'programmed' instructions, for instance for moving the fingertip from A to B, without bothering whether the used motion patterns were natural and efficient.…”

Section: Motor Control Models Of Human Motionmentioning

confidence: 99%

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Theoretical underpinning and prototype implementation of scenario bundle-based logical control for simulation of human–artifact interaction

Vegte

Horváth

2012

Computer-Aided Design

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This article presents a new methodology that enables designers to include in simulations not only the physics aspects of artifact behavior, but also human actions. The motivation for this research came from the fact that none of the conventional approaches to engineering simulations includes manipulative control of products by users as foreseen by designers. By implementing control over physics simulations, changes in parameters can be introduced that alter the course of the simulated process. As a means to do this, we propose to use scenario bundles, with which designers can operationalize their conjectures of how human users interact with products as a series of interconnected simulations. For the imaginary use process described in a scenario bundle, the designer can specify various product designs, user characteristics and environments, which may in each case lead to different concatenations of simulation actions. The proposal facilitates the exploration of possible mismatches and anomalies in use processes. In this article we have described the theoretical fundamentals and the overall concept of the proposed methodology, as well as its realization as a proof-of-concept implementation. This implementation can be used as a tool to specify scenario bundles and to perform controlled simulations of human-product interaction. The use of the tool is demonstrated through a practical example. Although the implementation has proven to be successful in terms of executing scenario bundles, two bottlenecks need further attention: (i) devising stable algorithms for large deformations in physical interaction simulation and (ii) incorporation of already existing algorithms for simulation of low-level human motion control.

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