Rocket Sled Strength Testing of Large, Supersonic Parachutes

Aguilar, David M.; Gallon, John C.; Hennings, Elsa; Johnson, Michael; Marti, Benjamin; Meacham, Michael B.; Natzic, David; Rivellini, Tommaso P.; Tanner, Christopher; Thompson, Nathaniel B.

doi:10.2514/6.2015-2163

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A single test generates a substantial volume of experimental data, providing comprehensive information for analysis and evaluation. The rocket sled has become an indispensable tool in fields such as escape tower, parachute testing [ 5 ], verifying new materials and structures, etc. Additionally, as one of the single-stage-to-orbit launch methods, the rocket sled can fully use its propulsion characteristics to provide high takeoff velocity for spacecraft.…”

Section: Introductionmentioning

confidence: 99%

Sensors Layout Optimization Design of Rocket Sled Test System

Qian,

Wang,

Zhao

et al. 2024

Sensors

View full text Add to dashboard Cite

The rocket sled, as a ground dynamic test system, combines the characteristics of the wind tunnel test and the flight test. However, some practical factors, such as shock wave interference, ground effect, and high-intensity aerodynamic noise will cause serious interference and even failure of the uniformly distributed sensors during horizontal sliding in a wide speed range. The AGARD HB-2 standard model is employed as the payload to simulate the aerodynamic and aeroacoustic characteristics during the variable acceleration period, aiming to optimize the test sensors layout. It is observed that in the high Mach number flow fields, strong coupling behaviors among complex waves will occur. The peak of wake vortex strength will appear at 1.5 s and gradually diminish over time. In addition, when the vortex between the load and the booster is monitored, its position shifts forward in the subsonic stage, then gradually moves backward and expands in the supersonic stage. Acoustic directivity is pronounced at subsonic and transonic speeds, pointing towards 75° and 135° relative to the sliding speed, respectively. These results can provide technical support for sensor layout and high-precision testing in rocket sled tests.

show abstract

Section: Introductionmentioning

confidence: 99%

Sensors Layout Optimization Design of Rocket Sled Test System

Qian,

Wang,

Zhao

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

V&V on a NASA technology demonstration project: Low density supersonic decelerator

Murry

Randolph

2016

2016 IEEE Aerospace Conference

View full text Add to dashboard Cite

Aerodynamic and aeroacoustic characteristics of rocket sled under strong ground effect

Qian,

Niu,

Jiang

et al. 2024

International Journal of Aeroacoustics

View full text Add to dashboard Cite

Rocket sled test avoids boundary effects in wind tunnel test and inconvenience of flight test, which is one of the feasible options for future single-stage-to-orbit. To analyze potential safety issues during payload separation and optimize the arrangement of testing sensors, different structural layouts and operating speeds of the rocket sled are conducted based on computational fluid dynamics and computational aeroacoustics. The hypersonic winged standard model is utilized as the load for these simulations. The analysis encompasses the evolution of shock waves, the forces exerted on the payload and noise propagation. Variations in flow field and aeroacoustic characteristics of rocket sled are analysed, revealing underlying physical mechanisms. It is observed that placing the payload in front of the thruster can reduce the head pressure, excessive wingspan may have an impact on the structural safety of the wingtip, and the regions of high sound pressure levels mainly exists in the middle and rear sections of the rocket sled. Moreover, as the Mach number increases, the characteristic frequency initially rises and then declines. These researches can serve as a valuable reference for the development of ground test systems and single-stage-to-orbit.

show abstract

Rocket Sled Strength Testing of Large, Supersonic Parachutes

Cited by 3 publications

References 0 publications

Sensors Layout Optimization Design of Rocket Sled Test System

Sensors Layout Optimization Design of Rocket Sled Test System

V&V on a NASA technology demonstration project: Low density supersonic decelerator

Aerodynamic and aeroacoustic characteristics of rocket sled under strong ground effect

Contact Info

Product

Resources

About