CAREER: Modeling the Dynamics of Design and Systems Engineering Processes

这个学院早期职业发展（Career）奖的研究目标是模拟大型复杂工程系统的设计和开发过程的动态，以改进工程设计。该研究将利用动力系统、多学科设计、分析和优化（MDAO）以及管理科学领域的方法和结果。如果成功，主要的创新将是将关键设计因素与系统工程过程的动态行为联系起来。这些因素包括：(1)系统要求；(2)发展资金概况；(3)技术发展路线图；(4)系统分解和组织设计团队；（五）设计团队的激励机制；(6)系统工程管理方法；(7)设计本身的物理特性和性能。本研究将探讨将开发过程作为依赖于这些多学科因素的状态空间模型的方法。所得到的模型将适用于量化特性，包括稳态响应、稳定性、可达性和可控性。该模型将用于研究历史航空航天开发项目，以校准模型参数，验证建模方法，并深入了解过去项目成本和进度超支的原因。如果成功，该研究将在工业动力学的过程中心方法和多学科设计的产品中心观点之间提供一座智力桥梁。该工作也将为系统工程管理的反馈和最优控制策略的研究提供基础。动力学模型可能有助于了解工程系统（如飞机和航天器）开发中经常出现的成本和进度超支的根本原因。教育目标是鼓励学生追求技术职业，通过教学案例研究和基于研究任务中使用的历史发展项目的小插曲来说明工程师的重要社会角色。结果将广泛传播，以达到最大的影响。

The research objective of this Faculty Early Career Development (CAREER) award is to model the dynamics of design and development processes for large-scale complex engineered systems to enable improved engineering design. The research will leverage methods and results from the fields of dynamical systems, multidisciplinary design, analysis, and optimization (MDAO), and management science. If successful, the primary innovation will be to relate key design factors to the dynamical behavior of systems engineering processes. These factors include: (1) the system requirements; (2) the development funding profile; (3) the technology development roadmap; (4) the system decomposition and organization of design teams; (5) the incentive structures for the design teams; (6) the systems engineering management approach; and (7) the physical characteristics and performance of the design itself. The research will investigate approaches to cast the development process as a state space model dependent on these multidisciplinary factors. The resulting model will be suitable to quantify characteristics including steady-state response, stability, and reachability and controllability. The model will be used to study historical aerospace development projects to calibrate model parameters, validate the modeling approach, and gain insights into causes for past programmatic cost and schedule overruns. If successful, the research will provide an intellectual bridge between the process-centric methods of industrial dynamics and the product-centric viewpoint of multidisciplinary design. The work will also provide a foundation for the study of feedback and optimal control strategies for systems engineering management. The dynamics model may hold the potential to understand the root causes of the cost and schedule overruns that frequently occur in the development of engineered systems such as aircraft and spacecraft. The educational objective is to encourage students to pursue technical careers by illustrating the important societal role of engineers through pedagogical case studies and vignettes based on the historical development projects used in the research tasks. The results will be broudly disseminated to achieve the greatest impact.