Initial Jitter Analysis of Lynx, A Proposed Future Large Astrophysics Facility

Knight, J Brent ; Gaskin, Jessica A ; Dominguez, Alexandra ; Garcia, Jay

关键词: X RAY TELESCOPES;    CRYOGENICS;    VIBRATION;    COOLERS;    DESIGN ANALYSIS;    DYNAMIC STRUCTURAL ANALYSIS;    MISSION PLANNING;    MIRRORS;    INSTRUMENT PACKAGES;    ASTROPHYSICS;    X RAY ASTRONOMY;   

RP-ID  :  MSFC-E-DAA-TN58626

学科分类：天体物理学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Lynx, formerly known as the X-Ray surveyor, is one of the large strategic mission concepts being studied for input into the 2020 Astrophysics Decadal Survey. Lynx is the first future X-ray mission concept planning to match Chandra's angular-resolution and will combine this with very high throughput, large field of view, and high-resolution spectroscopy for point-like and extended sources. These ambitious performance requirements clearly merit early detailed engineering to demonstrate feasibility. An on-going structural dynamic analysis is being performed on the Lynx structural design to predict dynamic responses, jitter, to expected on-board vibrational disturbances. Applicable disturbance sources include a cryogenic pump, and six reaction wheels. The structural design, disturbances, analysis, and results are presented. Ultimately, responses will be compared to Lynx performance requirements as they relate to a system error budget.