Simplifying models and estimating grasp performance for comparing dynamic hand orthosis concepts.

ABSTRACT: While designing a dynamic hand orthosis to assist during activities of daily living, the designer has to know whether a concept will have sufficient grasp performance to support these activities. This is often estimated by measuring the interaction force at the contact interface. However, this requires a prototyping step and limits the practicality of comparing several concepts in an early design stage. Alternatively, this study presents and compares basic static and dynamic models to numerically estimate grasp performance. This was applied on an exemplary concept for a hydraulically operated hand orthosis grasping a circular object. The models were validated with an experimental set-up that does not require sensors at the contact interface. Static and dynamic model results were almost ide

SUBMITTER: Bos RA 

PROVIDER: S-EPMC6657863 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature