AcSim: Aircraft Simulation Program with Application to Flight Profile Generation

Abstract

Program AcSim was designed to be used in conjunction with a flight profile generator program (FPG2) which is used with an Inertial Navigation System simulator. Both AcSim and FPG2 were written in FORTRAN-77 on an ELXSI system 6400. AcSim is implemented as a subroutine of FPG2 and is called if the user selects a dynamic manoeuvre segment to be performed. AcSim calculates the dynamic state of an aircraft for a sequence of user specified control surface deflections. The aircrafts linear accelerations and angular velocities are sent back to FPG2 for subsequent processing. A six-degree-of-freedom model is used to simulate the user-defined aircraft. AcSim implements a State Vector approach to solve the non-linear equations of motion simultaneously using a 4th order Runge- Kutta scheme. An optional Eigen Analysis can be performed which provides the user with longitudinal and lateral characteristic equation, their roots (eigen values), transfer functions and unit impulse response functions for the given flight condition. Australia.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA212466

Entities

People

  • A. G. Page

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Angular Acceleration
  • Classification
  • Computer Programs
  • Control Surfaces
  • Deflection
  • Differential Equations
  • Equations
  • Equations Of Motion
  • Global Positioning Systems
  • Inertial Navigation
  • Inertial Navigation Systems
  • Maneuvers
  • Navigation
  • Procedures (Computers)
  • Simulations
  • Simulators

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Computer Science.
  • Fluid Dynamics.