从调谐质量阻尼器到冲击振动能量传递

Daniil Yurchenko 教授（University of Southampton）

2026年7月15日（星期三）下午15：00

This presentation examines vibration mitigation and energy transfer in linear and nonlinear dynamical systems subjected to deterministic and stochastic excitation. The first part considers narrow-band-excited systems equipped with tuned mass dampers, with particular attention given to different topologies of spring and damper connections between the primary structure and the absorber. The generated non-traditional dampers’ and their performance is compared with classical tuned mass damper through exact analytical development and computational optimisation. The results illustrate how topology can be exploited for vibration mitigation in stochastic dynamical systems. The second part addresses targeted energy transfer (TET) in vibroimpact systems, where a ball travelling freely inside a harmonically excited capsule. TET can be used for effective vibration mitigation, energy harvesting and in other relevant applications encountered in mechanical, electrical and biological systems on both macro- and micro- levels. In considered system, dielectric energy-harvesting elements are activated during impacts, enabling part of the transferred vibration energy to be converted into electrical energy. The results shows that higher mass ratios, between the ball and the capsule, can unexpectedly degrade performance, introducing adverse effects that counteract the intended benefits of energy absorption.

丹尼尔·尤先科博士自 2021 年入职南安普顿大学起，担任该校声学与振动研究所动力学研究组负责人。其研究专长涵盖非线性与随机动力学、振动抑制，以及复杂动力系统的数学建模与实验建模。他于美国伍斯特理工学院取得机械工程博士学位。2008 年，获俄罗斯总统科学委员会青年科学家奖，此后出任圣彼得堡国立理工大学数理科学系正教授。他主持多项工业横向科研项目，同时承担英国工程与物理科学研究理事会（EPSRC）、英国皇家学会资助课题，并主持欧盟玛丽・斯克沃多夫斯卡——居里行动计划博士后基金项目。尤先科博士发表 200 余篇同行评审学术论文，在多场国际会议作特邀报告与主旨大会报告。他是国际声学与振动学会会士，兼任《机械系统与信号处理》《非线性科学与数值模拟通讯》《振动测试与系统动力学》副主编；同时担任《概率工程力学》《国际动力学与控制期刊》《振动》《能源》等期刊编委会委员。

撰写：赖志慧

排版：陈仕发

一审一校：任露洋

二审二校：马将

三审三校：郑纯