Assessing the validity of kinematically generated reach envelopes for simulations of vehicle operators

Illustration of posture on boundary of maximum reach envelope generated using mobility from starting at the sternoclavicular joint.

Assessments of reach capability using human figure models are commonly performed by exercising each joint of a kinematic chain, terminating in the hand, through the associated ranges of motion. The result is a reach envelope determined entirely by the segment lengths, joint degrees of freedom, and joint ranges of motion. In this paper, the validity of this approach is assessed

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A new approach to modeling driver reach


The articulated segments of the figure model are exercised to simulate reaching motions and driver capabilities are calculated from the constraints of the kinematic model.

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Maintaining balance in seated reaches


This paper details a method for investigating the role of balance in seated reaches and presents preliminary results.

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Design optimization of a fully-compliant bistable micro-mechanism

Manufactured bistable MEMS shown in the two stable positions.

In this paper, fully-compliant bistable micromechanisms were modeled using finite elements. This model was then coupled with an optimization program, allowing extensive exploration of the design space. The study revealed that the minimum layout size increases with the maximum force output.

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Multicriteria optimization in product platform design

Pareto curves exploring the relationships between performance objectives.

A product platform is a set of common components, modules or parts from which a stream of derivative products can be created. Product platform design requires selection of the shared parts and assessment of the potential sacrifices in individual product performance that result from parts sharing. A multicriteria optimization problem can be formulated to study such decisions in a quantitative

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