Title :
Nonlinear passive dynamic stability of hovering fruitfly, drosophila melanogaster
Author :
Gao, Na ; Liu, Hao
Author_Institution :
Grad. Sch. of Eng., Chiba Univ., Chiba, Japan
Abstract :
The nonlinear passive dynamic stability of fruit fly hovering is investigated by coupling the equations of 6DOF (Degree Of Freedom) motion and Navier-Stokes equations. We develop not only mathematical models to represent the instantaneous aerodynamic forces and moments based on Fourier series, but also a nonlinear dynamic model to solve the equations of 6 DOF motion by a fourth-order Runge-Kutta method with mathematical models. With these models, the responses to one equilibrium-condition (in hovering flight) and six one-dimensional disturbance conditions in six directions of motion of body are studied in terms of flight trajectory and body attitude.
Keywords :
Fourier series; Navier-Stokes equations; Runge-Kutta methods; aerodynamics; biomechanics; nonlinear dynamical systems; 1D disturbance conditions; 6 DOF motion; Degree Of Freedom motion; Fourier series; Navier-Stokes equations; aerodynamic forces; aerodynamic moments; body attitude; drosophila melanogaster; equilibrium-condition; flight trajectory; fourth-order Runge-Kutta method; fruit fly hovering; mathematical models; nonlinear dynamic model; nonlinear passive dynamic stability; NS equations; equations of 6DOF motion; fruit fly; nonlinear passive dynamic stability;
Conference_Titel :
World Automation Congress (WAC), 2010
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-9673-0
Electronic_ISBN :
2154-4824
