Study on Six-degree of Freedom Mathematical Dynamic Model of a Light Sport Aircraft

Authors

  • Sinchai Chinvorarat Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.
  • Boonchai Watjatrakul Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.
  • Pongsak Nimdum Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.
  • Teerawat Sangpet Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.
  • Tosaporn Soontornpasatch Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.
  • Pumyos Vallikul Department of Mechanical and Aerospace Engineering King Mongkut’s University of Technology North Bangkok 1518 Pracharaj 1, Bangkok, 10800, Thailand.

DOI:

https://doi.org/10.9734/bpi/rtcams/v1/10745D

Keywords:

Mathematical model, dynamic stability, light sport aircraft, perturbed dynamic system, trim condition

Abstract

The paper presents a six-degree of freedom mathematical model of a light sport aircraft and analytically reveals aircraft dynamic response both longitudinal and lateral-directional stability. The model composes of both the kinematics equations of motion and the kinetics equations of aerodynamic forces and moments, known as the aerodynamic model equations. Simulation results show responses of the perturbed dynamic system at trim condition, which indicates dynamic stability of both short-period pitching oscillation and phugoid in longitudinal axes. The spiral, roll subsidence, and dutch roll modes in lateral-directional axes are also dynamic stable as well. These are essential to understand and evaluate the dynamic behavior, stability, safety, and other aspects of the designed aircraft through a mathematical model before conducting an operational flight test.  

Published

2021-07-07

How to Cite

Sinchai Chinvorarat, Boonchai Watjatrakul, Pongsak Nimdum, Teerawat Sangpet, Tosaporn Soontornpasatch, & Pumyos Vallikul. (2021). Study on Six-degree of Freedom Mathematical Dynamic Model of a Light Sport Aircraft. Recent Trends in Chemical and Material Sciences Vol. 1, 37–48. https://doi.org/10.9734/bpi/rtcams/v1/10745D

Issue

Recent Trends in Chemical and Material Sciences Vol. 1

Section

Chapters