題目：Nonlinear Dynamics and Stability in Machining Processes
時間：2024年11月30日 10:00-11:30
地點(diǎn)：機(jī)械與動力工程學(xué)院 F210會議室
邀請人：瞿葉高 教授（振動、沖擊、噪聲研究所）
Biography
Marian Wiercigroch教授，國際著名非線性動力學(xué)專家，英國愛丁堡皇家學(xué)會院士，英國阿伯丁大學(xué)第六世紀(jì)講席教授，阿伯丁大學(xué)應(yīng)用動力學(xué)研究中心創(chuàng)始主任，波蘭科學(xué)院技術(shù)科學(xué)部委員。擔(dān)任國際權(quán)威期刊International Journal of Mechanical Sciences主編，以及二十多本雜志編委及中國力學(xué)學(xué)報海外編委。長期從事非線性動力學(xué)理論與實驗研究，累計發(fā)表500多篇學(xué)術(shù)論文。Marian Wiercigroch教授注重理論研究在工程中的應(yīng)用，是公司iV Dynamics Ltd.的創(chuàng)始人兼首席技術(shù)官。
Abstract
Comprehensive understanding of chatter, bifurcations and stability is essential for improving productivity, quality, and efficiency of manufacturing operations. In this lecture, first I will define nonlinearity, chatter, bifurcations and stability in manufacturing processes with the focus on metal cutting. Then I will discuss on the frictional chatter, which was introduced and investigated with my group and collaborators. Finally, examples of advanced nonlinear dynamics techniques such as path following bifurcation analysis, basins of attraction, Poincare maps and Lyapunov exponents will be discussed, which have been used to examine stability and determine a practically important measure so-called cutting safety.
上海交大
機(jī)械動力學(xué)院
上海交大
機(jī)動本科教務(wù)辦
SJTU機(jī)動研教辦
上海交大
機(jī)動校友辦
上海交大MEM
SJTUME基礎(chǔ)實驗與創(chuàng)新實踐
SJTUME錘錘
上海交大
機(jī)動研究生會
ME微紅旗
ME礪遠(yuǎn)學(xué)術(shù)
SJTUME職業(yè)發(fā)展中心
學(xué)院OA系統(tǒng)
jAccount登錄
ENGLISH
地址：上海市東川路800號上海交通大學(xué)閔行校區(qū)機(jī)械與動力工程學(xué)院
郵編：200240
Email：sjtume@sjtu.edu.cn