10.2514/6.2024-1915">
 

Max Range Reentry Optimization in Pseudo 5DOF for Lifting Bodies with Heating and Survivability Constraints

Document Type

Conference Proceeding

Publication Date

1-8-2024

Abstract

This report will detail the methods and results of an optimal control problem (OCP) used to understand the maximum range of a reentering vehicle under heating and deceleration design constraints. A quick assumption of max range can be made on a reentry body by assuming a control effort to obtain the maximum lifting coefficient throughout the reentry. These trajectories often assume planar flight for quick calculations, and are useful for determining the absolute practical distance of a reentry. This is often an over simplification of the problem. Most reentry vehicles have certain design constraints that would limit the available reentry range such as deceleration limits for manned flight, heating constraints, and final velocity constraints for reentering missile platforms. These constraints turn the simple planar reentry problem into an OCP requiring numerical methods to solve. This research found that with an optimal control solution, a 60% reduction in total stagnation heat load allowable results in an 11% reduction in the performance metric.

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Source Publication

AIAA SCITECH 2024 Forum

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