Coupled hard–soft tissue simulation with contact and constraints applied to jaw–tongue–hyoid dynamics
Связанное моделирование твердых и мягких тканей с учетом контактов и ограничений применительно к динамике комплекса челюсть–язык–подъязычная кость
2010-12-10
SCID: 54.1/erg36g8c
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contact constraintsfinite element methodhard–soft tissue simulationjaw–tongue–hyoid dynamicstemporomandibular joints
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Abstract (AI)
Abstract We present an open‐source physical simulation system suitable for efficient modeling of anatomical structures composed of both hard and soft tissue components, interconnected by point‐wise attachments, contact, and other constraints. Specific attention is paid to the computational formulation needed for the coupled simulation of rigid and deformable structures, and a constraint‐based mechanism is described for attaching these together. As an application of this system, we then present a novel 3D dynamic model of the jaw–tongue–hyoid complex, consisting of an FEM model of the tongue, rigid jaw, and hyoid structures, point‐to‐point muscle actuators, and constraints for bite contact and the temporomandibular joints. Several simulations are presented showing combined jaw–tongue actions and demonstrating the effects of coupled jaw–tongue–hyoid dynamics. Copyright © 2010 John Wiley & Sons, Ltd.
Key Findings
1
A novel three-dimensional dynamic jaw–tongue–hyoid model combines finite-element tongue tissue, rigid jaw and hyoid structures, muscle actuators, bite contact, and temporomandibular-joint constraints.
2
An open-source physical simulation system efficiently models coupled hard and soft anatomical tissues with attachments, contact, and constraints.
3
Simulations demonstrate combined jaw–tongue actions and reveal effects arising from coupled jaw–tongue–hyoid dynamics.
4
The formulation supports coupled simulation of rigid and deformable structures through a constraint-based mechanism for their attachment.
Research Object
the jaw–tongue–hyoid complex, modeled as coupled rigid and deformable anatomical structures
Research Subject
coupled jaw–tongue–hyoid dynamics, including combined actions and the effects of contact, muscle actuation, and joint constraints
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2010-12-10
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