SYstems Science-based design and manufacturing of DYnamic MATerials and Structures (SYSDYMATS)

许多工程系统中的材料和结构经常受到动态载荷的影响，这对它们的设计和制造提出了苛刻的约束和要求。例如，气动载荷可能会引起涡轮机械叶片盘的显著振动，可能导致高周疲劳，这对发动机的成本、安全性和可靠性具有重大影响，因此在设计过程中经常需要做出重大努力来防止振动问题。为应对这些挑战进行了广泛的研究，目前的活动主要集中在开发更先进和有效的有限元建模、模拟和优化技术。这些都在逐步扩展当前最先进的框架，但仍然存在的主要挑战之一是：如何产生高保真的降阶模型，并对需要承受苛刻动态载荷的工程材料和系统进行基于降阶模型的设计。为了从根本上解决这些挑战，该项目将开发一种基于复杂系统科学的创新数字制造方法，并在英国最终用户和利益相关者支持的三个案例研究中展示新方法的有效性和重要性，这些案例包括劳斯莱斯公司、威尔逊·贝内施公司(声音/声学)、Thomas Swann有限公司(纳米材料)、MS Research(慈善机构)、TISICS(金属基复合材料设计和制造)、Carter制造(铁路应用轴承)和MSC Software(数字制造软件)。该项目涉及谢菲尔德大学、布里斯托尔大学、帝国理工学院和德比大学的系统与控制、机械与结构工程以及材料科学领域的研究人员之间的密切多学科合作。预计这些成就将大大促进EPSRC未来制造愿景的实现，解决与数字制造相关的严峻挑战，并更有效地解决航空航天系统、先进材料和下一代铁路系统部件的高价值和专业设计和制造。这些可能会对以英国plc核心产业为中心的未来设计和制造活动产生巨大的好处。

Materials and structures in many engineering systems are often subject to dynamic loads, which place challenging constraints and requirements on their design and manufacturing. For example, aerodynamic loads can induce significant vibrations of bladed disks of turbo-machinery potentially causing high cycle fatigue, with major implication on the cost, safety, and reliability of engines, significant efforts are regularly necessary during design to prevent the vibration problems. A wide range of research studies have been conducted to address these challenges with current activities mainly focusing on the development of more advanced and effective techniques for finite element modelling, simulation, and optimization. These are gradually extending the framework of the current state-of-the-art, but one of the main challenges remain, which is: "how to produce a high-fidelity reduced order model and conduct the reduced order model-based design for engineering materials and systems that need to withstand demanding dynamic loads". In order to fundamentally resolve the challenges, this project will develop an innovative digital manufacturing methodology based on the complex systems science and demonstrate the effectiveness and significance of the novel method in three case studies supported by the end users and stakeholders in the UK, including Rolls-Royce plc, Wilson Benesch (sound/acoustics), Thomas Swann Ltd (nanomaterials), MS Research (charity), TISICS (metal matrix composite design and manufacturing), Carter Manufacturing (bearings for railway applications), and MSC Software (digital manufacturing software). The project involves a close multidisciplinary collaboration between the researchers in system and control, mechanical and structure engineering, and materials science from University of Sheffield, University of Bristol, Imperial College, and University of Derby. The achievements are expected to significantly facilitate the fulfilment of the EPSRC vision for Manufacturing the Future, resolving serious challenges related to digital manufacturing and more effectively addressing high-value and specialist design and manufacturing of aerospace systems, advanced materials, and next generation railway system components. These can potentially produce significant benefits to future design and manufacturing activities centred around core UK plc industries.