Space systems verification program and management process
Space systems verification program and management process
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空间系统验证计划和管理流程
DOI：
10.1002/sys.20084
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发表时间：
2007
影响因子：
2
通讯作者：
S. Nagano
中科院分区：
文献类型：
--
作者：
S. Nagano
拥有一个可靠的验证程序，确保“系统是正确构建的”，在政府和商业太空计划中都起着至关重要的作用，因为在系统开发的每个层次上，即使是需求、设计/分析、测试或检查中最小的错误，也可能导致主要的系统故障，并且一旦进入太空，几乎不可能排除故障和修复。根据航天公司自1960年代以来收集的空间/运载火箭（SV/ lv）故障相关数据，如果在将这些运载火箭运送到发射场之前发现问题，几乎所有的发射后故障都是可以避免的。特别地，它被发现如果缺陷在早期阶段（需求和设计阶段）或他们的系统开发的较低的系统水平被纠正，这些运载工具中的大多数可能已经成功了。一般来说，在系统开发后期发现的任何潜在问题，即使在发射前成功纠正，也会对太空计划的成本和进度产生重大影响。本文提出了一种基于分布式空间系统验证程序的空间系统规划和执行验证的系统方法。它在空间系统开发活动的每个层次和阶段实施一套标准化的模块化管理过程。这种分布式验证程序方法试图强制执行一套标准的管理过程，以防止“更快、更好、更便宜”的总系统程序责任（TSPR）哲学由于进度和成本压力而被无意地采用在任何级别的空间系统开发中。这种空间系统验证方法现在在美国国防部最佳实践文件中进行了解释，也包括在航空航天公司的规范和标准列表中。它也被采纳为美国一些主要空间项目的合规文件，如GPS Block III和国家安全空间项目。©2007 Wiley期刊公司系统中
Having a solid verification program that ensures a “system is built right” plays a crucial role in both government and commercial space programs, since even the smallest error in a requirement, design/analysis, test, or inspection at every level of a system development could cause a major system malfunction and would be almost impossible to troubleshoot and repair once in space. According to the space/launch vehicles (SV/LVs) failure related data that have been collected by Aerospace Corporation since the 1960s, almost all of the post‐launch failures could have been prevented if their problems had been discovered prior to the shipment of these vehicles to their launch sites. In particular, it was found that the majority of these vehicles could have been successful if deficiencies were corrected during early phase (requirement and design phases) or lower system level of their systems development. In general, any latent problems discovered later on in system development would significantly impact cost and schedule of space programs, even if they were successfully corrected prior to launch. This paper presents a systematic approach to planning and executing verification of space systems based on a distributed‐space system verification program. It enforces a standardized set of modular‐management processes at every level and phase of space system development activities. This distributed verification program approach tries to enforce a standard set of management processes in order to prevent Total System Program Responsibility (TSPR) philosophy, a “faster, better, cheaper” approach, from being unintentionally adopted at any level of space system development due to schedule and cost pressures. This space systems verification approach is now explained in an U.S. DoD best practice document and also included in The Aerospace Corporation's specification and standard list. It has also been adopted as a compliance document in some major U.S. space programs, such as GPS Block III, and national security space programs. © 2007 Wiley Periodicals, Inc. Syst Eng