Design,construction and evalution of ISRO-NAL acoustic test facility

Balakrishna, S and Ganesh, VS and Padma, Madhuranath and Bonde, DH and Handoo, KL (1989) Design,construction and evalution of ISRO-NAL acoustic test facility. In: 39th IAF, International Aeronautical Congress, 8-15 Oct 1988, Bangalore, India.

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Abstract

The design, construction, and performance evaluation results of the ISRO- NAL 1100 cubic meter reverberation chamber acoustic test facility for the environmental acoustic testing of spacecraft and launch vehicles are discussed. Special features considered include the blowdown mode of air supply, a free standing concrete sliding door, and pneumatic door seals. The facility achieves a maximum overall sound pressure level of 157 dB within acceptable spatial and spectral variations.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Acoustics;Acoustic measurement;Doors;Design parameters;Variations;Spacecraft;Measuring instruments;Acceptable noise levels;Chambers;Concretes;Spectra;Launch vehicle;Noise levels;Reflection;Acoustic propagation;ISRO
Subjects: AERONAUTICS > Aeronautics (General)
Division/Department: Flight Mechanics and Control Division, Acoustic Test Facility, Systems Engineering Division, Other, Other
Depositing User: M/S ICAST NAL
Date Deposited: 14 Nov 2006
Last Modified: 24 May 2010 09:53
URI: http://nal-ir.nal.res.in/id/eprint/3426

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