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Related Experiment Videos

Ground based ISS payload microgravity disturbance assessments.

Anne M McNelis1, John A Heese, Sergey Samorezov

  • 1NASA Glenn Research Center, Cleveland Ohio 44135, USA. Anne.M.McNelis@nasa.gov

Acta Astronautica
|July 14, 2005
PubMed
Summary
This summary is machine-generated.

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A new process verifies International Space Station (ISS) payload racks do not disrupt microgravity. The Microgravity Emissions Laboratory (MEL) measures disturbances, ensuring sensitive science operations are protected in space.

Area of Science:

  • Space Science
  • Microgravity Research
  • Aerospace Engineering

Background:

  • Maintaining a stable microgravity environment is crucial for International Space Station (ISS) science.
  • Payload facility racks can introduce vibrations that compromise sensitive experiments.
  • A comprehensive verification process for these racks is currently lacking.

Purpose of the Study:

  • To implement and verify a process ensuring ISS payload facility racks do not disturb microgravity.
  • To validate that facility science operations are not compromised by payload disturbances.
  • To detail the development and application of the Microgravity Emissions Laboratory (MEL) for this purpose.

Main Methods:

  • Development of the Microgravity Emissions Laboratory (MEL), a 6-DOF inertial measurement system.

Related Experiment Videos

  • Characterization of inertial response forces (emissions) from payloads down to 10(-7) g's.
  • Utilizing MEL data in analytical simulations to predict on-orbit vibratory environments and verify microgravity levels.

    • Main Results:

    • The MEL system enables precise measurement of payload-induced microgravity disturbances.
    • Analytical simulations predict the on-orbit vibratory environment based on measured emissions.
    • The process facilitates the development of microgravity-sensitive experiment operations.

    Conclusions:

    • The implemented process, utilizing the MEL and analytical simulations, provides a robust method for verifying microgravity compliance.
    • This approach ensures the integrity of microgravity experiments on the ISS.
    • On-orbit verification will be conducted using the Space Acceleration Measurement System (SAMS).