首页|Risk Management for Commercial-Off-The-Shelf Parts Based Space Hardware
Risk Management for Commercial-Off-The-Shelf Parts Based Space Hardware
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NETL
NSTL
Wiley
Commercial-Off-the-Shelf (COTS) parts use is a key strategy that the space industry is embracing to meet an ever-increasing demand for space access and services. Integrating COTS parts into spacecraft architectures is beneficial in many aspects such as integrating modern technologies, reducing costs, improving reliability, accelerating payload fielding, and alleviating supply chain constraints. As COTS parts become more prevalent in spacecraft designs, there is a need to update risk management techniques used in the industry. A COTS centric risk management framework (RMF) does not exist nor do space hardware standards and policies provide detailed guidance. To address this systems engineering gap, this research developed a novel RMF that can be employed when trying to determine if candidate COTS parts are suitable for use in space hardware systems. The COTS parts RMF is a roadmap to identify uncertainties, analyze and evaluate the consequences, and how to mitigate COTS parts-based space system hardware risks. Additionally, to demonstrate its utility, the techniques were placed into practice and validated during the development of a COTS-based space-rated battery built with COTS lithium-ion cells. The risk evaluation process, developed based on the proposed COTS part RMF, was successfully used to uncover and mitigate cell and battery material and design issues. This work significantly improved the battery's performance without hampering the project's schedule, cost, and fielding objectives. The results illustrate the characteristics and benefits of using a focused COTS parts RMF to design, build, and qualify COTS-based space system hardware.
NETL
NSTL
Wiley
