Title (150 characters) Vibration Absorber Design using Experimental Testing within a Digital Twin (PhD advertised but Jason Zheng Jian and Simon Niel

摘要(不超过4,000个字符和空格)博士主题背景/描述工程系统中不需要的振动会极大地缩短他们的工作寿命，降低他们的效率，并导致螺旋式上升的维护成本。该项目旨在通过使用“数字孪生”技术和特别先进的实验方法系统地设计吸振器来解决减振问题。数字孪生兄弟不仅是一个数字模型，而且是物理系统的虚拟代理版本，通过在不确定性分析、模型简化和实验验证方面使用新技术，将数据与不同保真度的模型融合在一起。在整个项目中，学生将在动力学和控制理论、机械建模和仿真领域建立扎实的技能。该项目是DIGITWIN项目下更广泛工作的一部分(http://digitwin.ac.uk/)，是一项EPSRC计划赠款，横跨6所英国机构(谢菲尔德大学、布里斯托尔大学、剑桥大学、利物浦大学、南安普顿和斯旺西大学))。学生还将有机会在定期的Digitwin项目会议上发表演讲，与我们的行业合作伙伴在广泛的领域进行交流，以及发表期刊论文和参加国际会议。

Abstract(no more than 4,000 characters inc spaces) PhD Topic Background/Description Unwanted vibrations in engineering systems can drastically decrease their working lives, lower their efficiency, and result in spiralling maintenance costs. This project aims to address vibration suppression problems by systematically designing vibration absorbers using "digital twins" technology and specifically advanced experimental methods. A digital twin is not only a numerical model, but a virtualised proxy version of the physical system built from a fusion of data with models of differing fidelity, using novel techniques in uncertainty analysis, model reduction, and experimental validation. Throughout the project, the student will build solid skills in the field of dynamics and control theory, mechanical modelling and simulation. This project forms part of a wider body of work under the Digitwin project (http://digitwin.ac.uk/), an EPSRC Programme Grant that spans 6 UK institutions (University of Sheffield, Bristol, Cambridge, Liverpool, Southampton & Swansea). The student will also have the opportunity to give presentations at regular Digitwin project meetings, communicate with our industry partners across a wide range of sectors, as well as publish journal papers and attend international conferences.