Dynamical models of cranial kinesis

Date

2002-05

Journal Title

Journal ISSN

Volume Title

Publisher

Texas Tech University

Abstract

This work is concerned with the modeling of the movement of the upper or lower jaw of a bird with respect to the brain case. This functional property is known as cranial kinesis.

The skeletal elements of the jaw are modeled as a system of articulating rigid links and elastic structures. The Euler-Lagrange equations of motion for the joint angles are derived while accounting for external inputs that correspond to applied torques at selected nodes. Computer algebra manipuations are utilized to derive the state equations, and numerical solutions are computer. Simulations are carried out in order to illiustrate the effects of various system parameters that correspond to variations in anatomical structure.

Description

Keywords

Skull, Jaws, Birds, Animal mechanics

Citation