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的考虑和活动（如制造和操作）纳入早期设计阶段的方法，以缩短产品开发提前期，提高产品生命周期的整体质量。在过去的几年里，申请人的研究计划一直专注于开发新的方法和软件工具，以支持并行设计活动，以及它们的工业应用。这项研究产生了重大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以前开发的方法扩展到复杂产品的最优并行设计，其中需要在建模，仿真和优化，并考虑由于这些技术的不确定性的多种技术。本研究的长期目标是为未来的CAD系统，支持最佳的并行设计功能的方法。** 本研究计划将重点关注以下四个方面：（1）引入混合建模方案，在考虑不同类型的建模不确定性的情况下，在不同的产品生命周期方面集成不同类型的产品描述，（2）开发一种混合模拟方法，以整合各种工具，用于评估不同的产品寿命-考虑不同类型的模拟不确定性的周期方面，（3）开发混合优化方法，以有效地识别考虑不同类型的优化不确定性的最优设计及其下游寿命周期方面，以及，（4）所发展的方法在工业中的应用。** 拟议的研究将为考虑不确定性的复杂产品的并行设计引入新的方法和许多新的方法/工具。这些方法和工具可用于识别考虑功能性能、生产成本和操作成本的最优设计，从而提高产品在市场上的竞争力。所提出的方法有潜力开发的关键组件，在未来的CAD系统，支持最佳的并行设计功能。

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.**