An overview of the X-38 prototype crew return vehicle development and test program

Machin, Ricardo A.; Stein, Jenny M.; Muratore, John F.

doi:10.2514/6.1999-1703

Cited by 19 publications

(2 citation statements)

References 5 publications

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“…The technologies demonstrated in the X-37 include an improved TPS, enhanced avionics, an autonomous guidance navigation, and control system. The X-38 was an experimental reentry vehicle designed by NASA to research a possible emergency crew return vehicle (CRV) for the International Space Station (ISS) [10].…”

Section: Past Developmentsmentioning

confidence: 99%

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Viviani¹,

Pezzella²

2019

Hypersonic Vehicles - Past, Present and Future Developments

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Section: Past Developmentsmentioning

confidence: 99%

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Viviani¹,

Pezzella²

2019

Hypersonic Vehicles - Past, Present and Future Developments

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“…The extra-large parachute with nominal area of more than 1,000 m 2 has been developed around the world. However, the parachute inflation process is a geometric and material nonlinearity FSI (fluid-structure interaction) problem, and the strongly nonlinear is particularly prominent in the pre-inflation process of extra-large parachute, which has led to many opening failure accidents occurred in the pre-inflation process [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Extra-Large Parachute’s Pre-Inflation in Finite Mass Situation

Sun

Cheng

Yang

2018

Autex Research Journal

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The extra-large parachutes were different from the common parachutes because of their size and opening process. Some undesirable inflation phenomena such as canopy winding and whipping usually appeared in their pre-inflation process. However, the mechanical mechanism of these phenomena was very difficult to be explained by experimental means. In this paper, the pre-inflation process in finite mass situation of an extra-large parachute was calculated by explicit finite elements. According to the results, the pre-inflation process can be subdivided into symmetric inflation stage, undesirable inflation stage, and stable inflation stage. The canopy winding and whipping mainly occurred in the second stage. With the continuous deceleration of parachute-payload system, the top of canopy without effective constraints would appear winding and whipping under the function of inertia force. The canopy winding and whipping increased the difficulty of canopy expanding and then caused asymmetric inflation. The above undesirable phenomena had a great influence on the deceleration effect and were easy to cause the recovery failure. The actual airdrop experiments also proved that the lack of effective constraints on the canopy top will cause undesirable inflation phenomena. The conclusions in this paper can also provide a reference for extra-large parachute design and research.

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Parachute recovery for UAV systems

Wyllie¹

2001

Aircraft Engineering and Aerospace Technology

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Parachute recovery systems are described from a systems perspective. Parachute recovery is particularly suited to tactical fixed wing UAV systems that require a high degree of mobility by allowing air vehicle recovery onto unprepared terrain. The descent environment is described, and the impact of wind on recovery is considered. The relative merits of cruciform, round and parafoil canopies are assessed, taking three real‐world systems as design examples. Throughout, design considerations are approached from a systems perspective, with a view to producing safe, autonomous and accurate recovery systems.

show abstract

An overview of the X-38 prototype crew return vehicle development and test program

Cited by 19 publications

References 5 publications

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Numerical Study of Extra-Large Parachute’s Pre-Inflation in Finite Mass Situation

Parachute recovery for UAV systems

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