Preventing Loss of Control in Agile Aircraft: A Dynamic Command Saturation Approach
This study proposes an online strategy to prevent loss of control in agile aircraft by limiting only the pilot commands, rather than relying on pre-established flight envelope constraints. The approach combines incremental attainable moment set analysis for real-time controllability detection and a Lyapunov-based command limiter for loss of control prevention.
Optimal Cruise Airspeed and Flight Time Computation for Fuel-powered and All-electric Aircraft with Variable Cost Index
This paper proposes a unified approach to compute the optimal constant cruise airspeed and flight time that minimize the direct operating cost (DOC) for fuel-powered and all-electric aircraft, considering a time-varying cost index commanded by Air Traffic Control.
Robust Low-Thrust Trajectory Design for the Power and Propulsion Element of the Lunar Gateway
Robust low-thrust trajectory design framework to explore solutions for the Power and Propulsion Element (PPE) module to the Earth-Moon L2 Southern 9:2 Near Rectilinear Halo Orbit, incorporating algorithmic enhancements to improve the global search for robust solutions.
화성 상승 차량의 추진 시스템 고장 하에서의 최적 경로 재계획: 준최적 학습 기반 워밍 스타트 접근법
화성 상승 차량의 추진 시스템 고장 발생 시, 목표 궤도와 비행 경로를 동시에 최적화하는 준최적 학습 기반 워밍 스타트 방법을 제안한다.
Optimized Trajectory Replanning for Mars Ascent Vehicle under Propulsion System Faults using a Suboptimal Learning-based Approach
A suboptimal joint trajectory replanning (SJTR) method is proposed to efficiently solve the problem of optimizing the target orbit and flight trajectory for a Mars ascent vehicle after encountering a thrust drop fault, by incorporating penalty coefficients for terminal constraints and utilizing a learning-based warm-start scheme.
Harnessing Nature's Efficiency: Dandelion Spacecraft for Interstellar Exploration
Dandelion spacecraft, or "d-craft," can be an energy-efficient way to spread interstellar seeds by leveraging existing rocket technology and natural phenomena like stellar tidal forces and supernova explosions.
Unintended Thrust Reversal Causes Catastrophic Crash of Air New Zealand DC-8 During Training Flight
The unintended deployment of the №4 thrust reverser on a DC-8 jet during a simulated engine failure training exercise led to a catastrophic crash, highlighting design flaws and the risks of such training maneuvers in actual aircraft.
스페이스X 스타십, 첫 번째로 양 단계 모두 성공적으로 부드럽게 착륙
스페이스X의 스타십 IFT4 미션에서 처음으로 1단 부스터와 2단 스타십 모두 부드럽게 착륙에 성공했다.
スペースXのスターシップが初めて両段階を軟着陸させることに成功
スペースXのスターシップが初めて両段階を軟着陸させることに成功した。
SpaceX Starship Completes Historic First Soft-Landing of Both Booster and Spacecraft Stages
SpaceX has successfully soft-landed both the Starship booster and spacecraft stages for the first time, marking a significant milestone in the development of their reusable launch system.
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