Vibration Testing of the Constellation X Spectroscopy X-Ray Telescope Reflector Mounting Design
Abstract
This paper covers the results of four vibration tests performed on the Constellation X Spectroscopy X-Ray Telescope Mirrors. The testing provided critical understanding of the glass strength when subjected to high level vibration loads and helped determine the resonance frequencies of the mirror when mounted using ten grooves in a titanium strut. The data from this testing indicates that the Schott D-263 glass mirrors meets the requirements for glass set forth in the NASA Technical Standard 5001. This is a critical step forward to ensure the success of the Constellation X mission. Four objectives were achieved from this testing. A finite element model successfully predicted the natural frequency of the mirrors during sine sweeps. The testing determined that the D-263 glass can survive loads seen during launch. The third and fourth objectives, collecting data for minor and fixture's response characteristics to use as baseline of future designs, were also achieved. The most important result from this series of tests indicates that the mirrors are capable of surviving the launch environment of a Delta IV Heavy or Atlas 5.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 24, 2005
- Accession Number
- ADA442247
Entities
People
- Joshua Schneider
Organizations
- George Washington University