Effect of air motion on a microgravity vibration isolation system

Dewi I. Jones; M. H. Lorenz

doi:10.1117/12.157079

23 September 1993 Effect of air motion on a microgravity vibration isolation system

Dewi I. Jones, M. H. Lorenz

Proceedings Volume 1949, Space Guidance, Control, and Tracking; (1993) https://doi.org/10.1117/12.157079
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Many of the experiments to be performed within the various space agencies' microgravity programs are extremely sensitive to low frequency spacecraft vibration. The microgravity isolation mount (MGIM) consists of a free floating platform, accommodated within the spacecraft's experiment racks, which isolates sensitive payloads from ambient disturbances. This paper describes the main features of the MGIM and discusses some of the factors considered when deciding on a control system strategy. The emphasis of the paper is on the trade-off which occurs between the heat dissipation capacity of the thermal subsystem and the achievable microgravity level. Thermal dissipation from the platform is by means of interleaved cooling fins located on both the platform and its enclosure. Theoretical expressions are developed for the force caused by air motion in the gap between the fins and experimental results which verify these expressions are presented. It is shown, by means of computer simulation, that the attainable microgravity quality is limited by the dimensions of the cooling fins required to support a specific payload heat dissipation capacity.

Citation Download Citation

Dewi I. Jones and M. H. Lorenz "Effect of air motion on a microgravity vibration isolation system", Proc. SPIE 1949, Space Guidance, Control, and Tracking, (23 September 1993); https://doi.org/10.1117/12.157079

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available