2020
DOI: 10.1155/2020/4313758
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Uncertainty Analysis for Return Trajectory of Vertical Takeoff and Vertical Landing Reusable Launch Vehicle

Abstract: The uncertainties during the return trajectory of vertical takeoff and vertical landing reusable launch vehicle weaken the ability of precision landing and make the return process more challenging. This paper is devoted to quantifying the probability uncertainty of return trajectory with uncertain parameters. The uncertainty model of return multi-flight-phase under the uncertainties of initial flight path angle, axial aerodynamic coefficient, and atmospheric density is established using the generalized… Show more

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Cited by 4 publications
(4 citation statements)
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“…Figure 5. Falcon 9 landing status and landing pad [19]. It has been proved that the four-legged structure is more stable than the three-legged structure when the road surface is horizontal or inclined as a whole, and the beam-type legged lander with concentrated mass at the end has better stability.…”
Section: Leg Landermentioning
confidence: 99%
See 1 more Smart Citation
“…Figure 5. Falcon 9 landing status and landing pad [19]. It has been proved that the four-legged structure is more stable than the three-legged structure when the road surface is horizontal or inclined as a whole, and the beam-type legged lander with concentrated mass at the end has better stability.…”
Section: Leg Landermentioning
confidence: 99%
“…The main structure of the current reusable launch vehicle lander can be divided into two main forms, simple pillar and space rocker [19,20].…”
Section: Leg Landermentioning
confidence: 99%
“…The actual flight of the LV is usually affected by various uncertainties [37][38][39], the most common one is the variation of atmosphere environment. Especially, the impact is obvious to the-first-stage flight, due to a dense atmosphere condition at this stage, as shown in Fig.…”
Section: Uncertainty Propagation Problemsmentioning
confidence: 99%
“…There are two commonly used coordinate systems for modeling rocket vertical landing problems, the velocity coordinate system [16][17][18][19][20] and the landing point coordinate system [21][22][23][24][25]. In this paper, the three-degree-of-freedom dynamics of the rocket are derived based on the landing point coordinate system.…”
Section: Introductionmentioning
confidence: 99%