Optimal Concurrent Design of Complex Products Considering Uncertainties

并行设计是一种将下游产品生命周期方面（如制造和操作）的考虑和活动纳入早期设计阶段的方法，以缩短产品开发前置时间并提高整体产品生命周期质量。在过去的几年里，申请人的研究项目一直专注于支持并行设计活动的新方法和软件工具的开发，以及它们的工业应用。该研究取得了显著的科学贡献和经济效益。******对于需要多种建模、仿真和优化技术的复杂产品的设计，由于设计产品的复杂性，不确定性会显著影响设计质量。拟议的研究计划将申请人先前开发的方法扩展到复杂产品的最佳并发设计，其中在建模，仿真和优化中需要多种技术，并且考虑到这些技术带来的不确定性。本研究的长期目标是为支持最佳并行设计功能的未来CAD系统开发方法。******拟定的研究计划将集中在以下四个方面：(1)引入混合建模方案，考虑不同类型的建模不确定性，将不同类型的产品描述集成到不同的产品生命周期方面；(2)开发混合仿真方法，考虑不同类型的仿真不确定性，将各种工具集成到不同的产品生命周期方面的评估中；(3)开发了一种混合优化方法，以有效地识别最优设计及其下游生命周期方面，并考虑了不同类型的优化不确定性；(4)将所开发的方法应用于解决工业工程问题。******提出的研究将为考虑不确定性的复杂产品的并行设计引入一种新的方法和许多新的方法/工具。这些方法和工具可用于确定考虑功能性能、生产成本和运营成本的最佳设计，从而提高产品在市场上的竞争力。所提出的方法具有开发支持最佳并行设计功能的未来CAD系统中的关键组件的潜力

Concurrent design is an approach to incorporate considerations and activities in downstream product life-cycle aspects, such as manufacturing and operation, into early design stage for shortening product development lead-time and improving overall product life-cycle quality. Over the past years, the applicant's research program has focused on development of new methodologies and software tools for supporting concurrent design activities, as well as their industrial applications. The research has led to significant scientific contributions and economic benefits. ******For design of a complex product that requires multiple techniques in modeling, simulation and optimization, uncertainties significantly influence design quality due to complexities of the designed product. The proposed research program will extend the applicant's previously developed methods to the optimal concurrent design of complex products where multiple techniques are required in modeling, simulation and optimization, and uncertainties due to these techniques are considered. The long-term objective of this research is to develop the methodologies for future CAD systems that support optimal concurrent design functions. ******The proposed research program will focus on the following four aspects: (1) introduction of a hybrid modeling scheme to integrate different types of product descriptions in different product life-cycle aspects considering different types of modeling uncertainties, (2) development of a hybrid simulation approach to integrate various tools for evaluations of different product life-cycle aspects considering different types of simulation uncertainties, (3) development of a hybrid optimization method to identify the optimal design and its downstream life-cycle aspects efficiently considering different types of optimization uncertainties, and, (4) applications of the developed methods for solving engineering problems in industry. ******The proposed research will introduce a new approach and many new methodologies/tools for concurrent design of complex products considering uncertainties. These methods and tools can be used for identifying the optimal designs considering functional performance, production cost and operation cost, thus improving competitiveness of the products in marketplaces. The proposed approach has the potential to develop the key components in the future CAD systems that support optimal concurrent design functions.**