PAC-MOC-BIO Aninvestigation of different AIT scenarios on Req. verification, logistic and Quality aspects
Abstract
Projects such as EXOMARS 2020, Juice or Mars Sample Return and other further planned project with dedicated planetary protection constraints lead to new challenges due to simultaneously achieving extreme levels of particulate, molecular and biological cleanliness levels. The presentation will cover results from an ESA-supported investigation to collect lessons learned for mechanism assembly with the focus on quality and contamination requirements verification. The need to apply the findings in the challenge of subcontractor managing is shown. The heritage of OHB is based on the direct contribution, such as the High Resolution Camera, the Sample Processing and Distribution System (SPDS), the optical harness and the Analytical Laboratory Drawer (ALD) developments for the ExoMars2020 mission. The contributions cover the full range of cleanliness deliverable status from visible clean components to be finally cleaned by the Customer up to components integrated in the ultra clean zone. An additional source of experience was gained by exchange and support from and for other suppliers. In this regard, aspects from manufacturer to customer covering material compatibility, cleaning, sterilization and verification, documentation had to be covered. To cover these open challenges, OHB and IPA Fraunhofer experts signed a cooperation agreement. The combination of non-space application heritage and the laboratory infrastructure at IPA Stuttgart has initiated several valuable impulses, developments and systematic studies. One study covers the assembly of a representative mechanism in different environments, including the judgement on particulate, molecular and biological requirements achievement. The main objectives of the study were risk assesment, logistics effort, duration and quality aspects.The results sall be summarized in the presentation. The possibility to extract system engineering and design guidelines is currently in preparation at OHB and shall be briefly outlined. The key findings might lead to contributions to improve schedule, effort and mitigation action planning and might reduce cost and delays. This project was cofounded by ESA and OHB.The cooperation of IPA and OHB System reported in the presentation, focussing on cleanliness, cleaning process development and verification methods is supported by ESA.
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E2365M