Simulation of Shuttle launch G forces and acoustic loads using the NASA Ames Research Center 20G centrifuge

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Simulation of Shuttle launch G forces and acoustic loads using the NASA Ames Research Center 20G centrifuge

Shaw, T. L. / Corliss, J. M. / Gundo, D. P. / Mulenburg, G. M. / Breit, G. A. / Griffith, J. B.

The high cost and long times required to develop research packages for space flight can often be offset by using ground test techniques. This paper describes a space shuttle launch and reentry simulating using the NASA Ames Research Center's 20G centrifuge facility. The combined G-forces and acoustic environment during shuttle launch and landing were simulated to evaluate the effect on a payload of laboratory rates. The launch G force and acoustic profiles are matched to actual shuttle launch data to produce the required G-forces and acoustic spectrum in the centrifuge test cab where the rats were caged on a free-swinging platform. For reentry, only G force is simulated as the aero-acoustic noise is insignificant compared to that during launch. The shuttle G-force profiles of launch and landing are achieved by programming the centrifuge drive computer to continuously adjust centrifuge rotational speed to obtain the correct launch and landing G forces. The shuttle launch acoustic environment is simulated using a high-power, low-frequency audio system. Accelerometer data from STS-56 and microphone data from STS-1 through STS-5 are used as baselines for the simulations. This paper provides a description of the test setup and the results of the simulation with recommendations for follow-on simulations.

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Dokumentinformationen

Titel :

Simulation of Shuttle launch G forces and acoustic loads using the NASA Ames Research Center 20G centrifuge

Beteiligte:

Shaw, T. L. (Autor:in) / Corliss, J. M. (Autor:in) / Gundo, D. P. (Autor:in) / Mulenburg, G. M. (Autor:in) / Breit, G. A. (Autor:in) / Griffith, J. B. (Autor:in)

Erschienen in:

NASA. Goddard Space Flight Center, Eighteenth Space Simulation Conference: Space Mission Success Through Testing

Erscheinungsdatum :

1994-11-01

Medientyp :

Aufsatz (Konferenz)

Format :

Keine Angabe

Sprache :

Englisch

Schlagwörter :

Space Transportation