DocumentCode :
3515447
Title :
Implementation of a Whole Spacecraft Isolation System for the OSTM/Jason 2 Mission
Author :
Kern, Dennis L. ; Gerace, Christopher A.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA
fYear :
2008
fDate :
1-8 March 2008
Firstpage :
1
Lastpage :
8
Abstract :
The OSTM/Jason 2 mission will be the lightest payload to ever launch on a 2-stage Delta II 7320-10 launch vehicle. The moment-based lateral loads predicted for this launch configuration significantly exceed the qualification history of the inherited spacecraft bus. Additionally, payload sine vibration requirements for this launch configuration exceed the OSTM/Jason 2 spacecraft and equipment sine vibration qualification heritage. It was not possible to appreciably enhance the structural capability of the Jason 2 spacecraft, therefore a feasibility study of various potential approaches for mitigating the launch loads was conducted. A CSA Engineering, Inc., SoftRide whole spacecraft isolation system was chosen for implementation on the OSTM/Jason 2 mission based on probability of meeting the load mitigation criteria and cost and schedule considerations. This paper provides a) an overview of the study that resulted in selection of the SoftRide system, b) the design, analysis, and test process for the SoftRide system, along with some of the design issues and their solutions, and c) a summary of a KSC/JPL independent evaluation of the risks associated with the SoftRide program. The SoftRide solution for OSTM/Jason 2 allowed demonstration of the adequacy of the heritage qualification for the launch configuration.
Keywords :
aerospace engineering; design engineering; mechanical testing; space vehicles; vibration isolation; 2-stage Delta II 7320-10 launch vehicle; OSTM-Jason 2 mission; SoftRide system; design issues; launch configuration; launch loads; moment-based lateral loads; payload sine vibration requirements; spacecraft isolation system; structural capability; Extraterrestrial measurements; Instruments; NASA; Oceans; Payloads; Qualifications; Satellite broadcasting; Sea measurements; Space vehicles; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2008 IEEE
Conference_Location :
Big Sky, MT
ISSN :
1095-323X
Print_ISBN :
978-1-4244-1487-1
Electronic_ISBN :
1095-323X
Type :
conf
DOI :
10.1109/AERO.2008.4526538
Filename :
4526538
Link To Document :
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