Propulsion Error
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
The deviation of actual thrust output from commanded thrust, caused by manufacturing tolerances, nozzle erosion, propellant supply fluctuations, and similar factors. In station-keeping Monte-Carlo simulations, propulsion error is typically modeled with a normal distribution at two percent of commanded thrust. Together with navigation error and engine limitations, propulsion error constitutes the practical constraints of station-keeping and significantly affects the success rate for near rectilinear halo orbits.
Application Value
The deviation of actual thrust output from commanded thrust, caused by manufacturing tolerances, nozzle erosion, propellant supply fluctuations, and similar factors. In station-keeping Monte-Carlo simulations, propulsion error is typically modeled with a normal distribution at two percent of commanded thrust. Together with navigation error and engine limitations, propulsion error constitutes the practical constraints of station-keeping and significantly affects the success rate for near rectilinear halo orbits.
Related Concepts
- Simplified Kinematic Orbit Determination
- Delayed Measurement Fusion
- Proximity Navigation
- Velocity-to-be-Gained Guidance
References
- Zhang and Wang 2022 Continuous-thrust station-keeping of cis-lunar orbits using optimal sliding mode control with practical constraints