Abstract
The reproduced tactile sensation of haptic interfaces usually selectively reproduces a certain object attribute, such as the object's material reflected by vibration and its surface shape by a pneumatic nozzle array. Tactile biomechanics investigates the relation between responses to an external load stimulus and tactile perception and guides the design of haptic interface devices via a tactile mechanism. Focusing on the pneumatic haptic interface, we established a fluid–structure interaction-based biomechanical model of responses to static and dynamic loads and conducted numerical simulation and experiments. This model provides a theoretical basis for designing haptic interfaces and reproducing tactile textures.
Highlights
By electrophysiological experiments Johnson has revealed that the mechanical receptor neurons mainly include Merkel, Meissner, Ruffini and Pacinian, embedded into different depth of tissue and sensitive to different stimulation
Tactile biomechanics focuses on the changes in the distribution of mechanical parameters when fingers are stimulated by a load
Continuous models are based on continuum mechanics theory, whereas structural models are finite element models
Summary
By electrophysiological experiments Johnson has revealed that the mechanical receptor neurons mainly include Merkel, Meissner, Ruffini and Pacinian, embedded into different depth of tissue and sensitive to different stimulation. In the shallow-layer, Merkel and Ruffini belong to SA and RA, respectively. In the deep-layer, Meissner and Pacinian belong to SA and RA, respectively [1]. Tactile biomechanics focuses on the changes in the distribution of mechanical parameters when fingers are stimulated by a load. Two major models of finger tactile biomechanics exist: continuous models and structural models. Continuous models are based on continuum mechanics theory, whereas structural models are finite element models. Loads can be divided into static and dynamic. Static loads include concentrated force, line, and surface uniform loads, and dynamic loads primarily consist of sinusoidal loads
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