英国帝国理工孙业凯博士研究生学术报告会
发布时间:2019年09月19日 16:19 作者: 点击量:

Academic Lecture by Mr. Yekai Sun from Imperial College London

报告人:孙业凯

Speaker: Mr. Yekai Sun

主持人:王丁喜教授

Host: Prof. Dingxi Wang

时间:20190925日(星期三) 上午1000-1100

Time: 10:00am-11:00am, September 25, 2019

地点:长安校区澳门新萄京网址3522大楼107会议室

Place: Conference room 107, School of Power and Energy

题: 叶轮机械接触摩擦的非线性振动分析

Topic: Nonlinear Vibration Analysis for Turbomachinery with Contact Friction

内容简介:

Introduction:

叶轮机械是一个非常复杂的系统,在运行过程中会产生很严重的振动。摩擦是叶轮机械最常见的阻尼来源之一。摩擦接触界面处的能量耗散显著降低了振动水平,导致了高度非线性行为。针对接触摩擦等非光滑、耗散非线性问题,提出了一种分析非线性振动问题的数值方法。

 

Turbomachinery is a very complicated system and undergoes a high level of vibration during the operation. Friction is one of the most common damping sources for turbomachinery. The energy dissipated at the friction contact interfaces reduces the vibration level significantly and leads to highly nonlinear behavior. A numerical technique will be presented for analysing nonlinear vibration problems for non-smooth and dissipative nonlinearities, such as contact friction.

 

报告人简介

Speaker’s Biography

孙业凯,博士研究生,目前就读于英国帝国理工动力学研究课题组。之前以一等荣誉学位毕业于英国布里斯托大学航空航天工程系。主要研究方向为航空发动机涡轮叶盘摩擦阻尼,非线性振动模态理论以及仿真模拟。

 

Doc. Yekai Sun studied at the Dynamics Research Group, Imperial College London. Before that he obtained his bachelor degree with honors from school of aerospace engineering, University of Bristol. His main research fields are friction damping of turbine blade disc, nonlinear vibration modal theory and numerical simulation.

 

 

 

 

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