Analysis and design of aeroassisted interplanetary missions

Wyatt R Johnson, Purdue University

Abstract

An aeroassisted mission uses atmospheric forces to effect a spacecraft delta-V, which could allow for substantial propellant savings. This research focuses on aero-maneuvers useful for interplanetary flight. The aerogravity assist maneuver uses aerodynamic lift to achieve a greater delta-V than with gravity alone. Aerobraking and aerocapture both use aerodynamic drag to supplement or replace propulsive planetary captures. Optimal aerogravity assist trajectories are found, using a combination of analytic and graphical techniques. Simple control schemes are developed to manage angular momentum during aerobraking and to guide a spacecraft to a desired final orbit during aerocapture.

Degree

Ph.D.

Advisors

Longuski, Purdue University.

Subject Area

Aerospace materials

COinS