You are here

Novel Structure-Preserving Algorithms for Accurate Rocket Trajectory Propagation

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-18-C-7407
Agency Tracking Number: B17C-002-0093
Amount: $99,999.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: MDA17-T002
Solicitation Number: 2017.0
Solicitation Year: 2017
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-03-28
Award End Date (Contract End Date): 2018-09-27
Small Business Information
95 First Street
Los Altos, CA 94022
United States
DUNS: 829385509
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr. Bong-Jun Yang
 (650) 559-8585
Business Contact
 Dr. K. Menon
Phone: (650) 559-8585
Research Institution
 University of Illinois Urbana-Chapaign
 Mr. Avijit Ghosh
Sponsored Programs Administration 1901 S. First Street, Suite A
Champaign, IL 61820
United States

 (217) 333-2187
 Nonprofit College or University

The Department of Defense uses large-scale high-resolution federated simulations to propagate rocket vehicle trajectories. Runge-Kutta methods have served as a de-facto standard while conducting such simulations. However, there are several challenges while using Runge-Kutta methods for this task. Firstly, there should be exact time-step matching between federates, otherwise the states have to be interpolated between time steps, further introducing errors. Secondly, Runge-Kutta methods requires extensive computational throughput which in-turn increases the data output size. Thirdly, rocket vehicles follow different dynamics at different stages of its trajectory. Runge-Kutta integration schemes incur large integration errors at instances when change in dynamics occur. The proposed work develops a new class of structure preserving algorithms which inherently addresses all these limitations. Constants of motion are preserved throughout the rocket trajectory ensuring better error control at integration points and allowing larger time-steps, thus reducing output data. Moreover, a structure preserving interpolation method is proposed ensuring that the in-between states follow laws of physics obeyed by the underlying dynamical system. Phase I will demonstrate the feasibility of the proposed algorithms. In Phase II, a prototype will be developed to run multiple federated simulations.Approved for Public Release | 18-MDA-9522 (23 Feb 18)

* Information listed above is at the time of submission. *

US Flag An Official Website of the United States Government