A Comparative Study Between 6 Degree-of-Freedom Trajectory Model and Modified Point Mass Trajectory Model of Spinning Projectiles

<p>For spinning projectiles, the 6 Degree-of-Freedom model can closely capture their trajectories with high accuracy and details. However, it comes with the drawbacks of long computation time and needing many aerodynamic coefficients which can be hard to obtain. The Modified Point Mass Trajectory Model was introduced as a simplified solution. This work compares them with each other, and with some more conventional methods. A program is developed to simulate and visualize trajectories. With some augmentations, the Modified Point Mass model is able to generate comparable results in most cases, but not including special cases such as when the projectile is unstable. It also allows for simulation time step as much as 60 times while retaining accuracy.</p>

Name thesis:degree_name

Master of Science in Mechanical Engineering

Level thesis:degree_level

Thesis - Open Access

Discipline thesis:degree_discipline

Mechanical Engineering

Year

2021

Author dc:creator

• Du, Ange

• Ballistics
• 6DOF
• Modified Point Mass
• Programming
• Acoustics, Dynamics, and Controls
• Aerodynamics and Fluid Mechanics
• Mechanical Engineering

Repository record dc:identifier

https://commons.erau.edu/edt/594

OAI identifier oai:identifier

oai:commons.erau.edu:edt-1604