A case for trading risk in complex conceptual design trade studies

作者：Van Bossuyt Douglas L^*; Tumer Irem Y; Wall Stephen D

来源：Research in Engineering Design, 2013, 24(3): 259-275.

DOI：10.1007/s00163-012-0142-0

• Trade study
• Complex system design
• Risk
• Collaborative Design Center risk trading

Complex conceptual system design trade studies traditionally consider risk after a conceptual design has been created. Further, one person is often tasked with collecting risk information and managing it from each subsystem. This paper proposes a method to explicitly consider and trade risk on the same level as other important system-level variables during the creation of conceptual designs in trade studies. The proposed risk trading method advocates putting each subsystem engineer in control of risk for each subsystem. A risk vector is proposed that organizes many different risk metrics for communication between subsystems. A method of coupling risk models to dynamic subsystem models is presented. Several risk visualization techniques are discussed. A trade study example is presented based upon a simplified spacecraft model. Results from introducing the risk trading methodology into a simulated Collaborative Design Center are presented. The risk trading method offers an approach to more thoroughly consider risk during the creation of conceptual designs in trade studies.

• 出版日期2013-7