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CRYOGENIC VIBRATION TEST SET-UP FOR SPACE QUALIFICATION.

Author(s) : WILDEMAN K. J., PLOEGER G. R.

Type of article: Article

Summary

FOR THE VALIDATION AND QUALIFICATION PROGRAMME OF THE SHORT WAVELENGTH SPECTROMETER IN THE INFRARED SPACE OBSERVATORY, THE AUTHORS DESIGNED, BUILT AND TESTED A SPECIAL SET-UP FOR VIBRATIONTESTING AT CRYOGENIC TEMPERATURES (DOWN TO 8 LOADS OF UP TO ABOUT 1 KG CAN BE EXPOSED TO VIBRATION LEVELS REPRESENTATIVE FOR A LAUNCH. THE MECHANICAL TRANSFER OF THE SET-UP IS VIRTUALLY FLAT UP TO 2,000 HERTZ, WHILE THE CROSS-COUPLING BETWEEN THE VIBRATION AXES IS NO MORE THAN ABOUT 5%. THE TIME FOR COOLING DOWN CAN BE AS SHORT AS 30 MIN, WHILE WARMING UP TAKES LESS THAN AN HOUR.

Details

  • Original title: CRYOGENIC VIBRATION TEST SET-UP FOR SPACE QUALIFICATION.
  • Record ID : 1990-1802
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 5
  • Publication date: 1989

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