Longitudinal Aircraft Dynamics #10 – implementing the numerical method

06/05/2011

This section of the turorial finalizes the main dynamics calculations and implements the numerical method for approximating the glider trajectory. At this point, the model is already functional but with a crude interface. [sociallocker][/sociallocker]

Longitudinal Aircraft Dynamics #9 – more about forces and momenta – preliminary validation and testing

06/04/2011

This tutorial finalizes the implementation of the forces and momenta acting on the plane. It also initiates some hand testing and validation of the overall dynamics of the plane. [sociallocker][/sociallocker]

Longitudinal Aircraft Dynamics #8 – worksheet implementation of the dynamics equations (c)

06/03/2011

This section continues the worksheet implementation of the dynamics formulas for aerodynamic forces and momenta. [sociallocker][/sociallocker]

Longitudinal Aircraft Dynamics #7 – worksheet implementation of the dynamics equations (b)

06/02/2011

This section continues the  worksheet implementation of the dynamics formulas. [sociallocker][/sociallocker]

Longitudinal Aircraft Dynamics #6 – worksheet implementation of the dynamics equations (a)

06/01/2011

In this section, the parameters cl, cd and cm are scaled back to the force of lift, drag and the pitching moment of the aircraft. After that, the numerical  modeling scheme is described together with the macros behind it. At the end, the formulas for the angles of attack of the wing and the horizontal stabilizer are introduced. [sociallocker][/sociallocker]

Moment of Force and Torque Calculation

05/31/2011

This is an addition to a previous post, introducing the reader to different ways of calculating the moment of a force and the torque of a couple. This information will be useful in aircraft dynamics models.

Longitudinal Aircraft Dynamics #5 – finishing the aircraft

05/29/2011

This section finalizes the aircraft (glider) by inserting the wing, the horizontal stabilizer and a center of gravity (CG) sprite in the layout. [sociallocker][/sociallocker]

Newton Generalized Treatment

05/28/2011

Most of people have heard of Newton’s second law, mass, moment of inertia or the definition of the acceleration both linear and angular. The stuff presented here is elementary (9th grade), yet it is generally not properly understood. What happens when one applies a bunch arbitrary forces on an arbirtarily shaped body?  The resultant force vector produces a linear acceleration while the resultant torque produces a resultant angular acceleration around…

Longitudinal Aircraft Dynamics #4 – virtual aircraft definition

05/27/2011

This section of the tutorial explains how to create the  2D aircraft components for the animated longitudinal stability model. The first part deals with extracting the x-y coordinates for the fuselage, canopy, vertical stabilizer and rudder. The second part handles the main wing airfoil and the horizontal stabilizer airfoil. All thses parts will be put together in the next section. [sociallocker][/sociallocker]

Longitudinal Aircraft Dynamics #3 – layout parameters and wireframe fuselage generation

05/26/2011

This section discusses the layout of the virtual plane and provides for the worksheet implementation of the plane dimensions as input parameters controlled by spin buttons and macros. In the final part a freeform is used to generate raw data for the fuselage. [sociallocker][/sociallocker]