報告時(shí)間：2020年11月14日(周六) 17:00-18:30

報告地點(diǎn):機械館J3報告廳

報告形式:遠程視頻

報告人：MarianWiercigroch

報告人簡(jiǎn)介：

Wiercigroch教授是國際著(zhù)名非線(xiàn)性動(dòng)力學(xué)專(zhuān)家、英國愛(ài)丁堡皇家學(xué)會(huì )院士(Fellow)、波蘭科學(xué)院技術(shù)科學(xué)部委員、英國機械工程師協(xié)會(huì )會(huì )士(Fellow)、英國數學(xué)與應用協(xié)會(huì )理事會(huì )成員、英國數學(xué)與應用協(xié)會(huì )會(huì )士(Fellow)、英國工程與自然科學(xué)研究理事會(huì )成員、英國阿伯丁大學(xué)“六世紀主席”教授、英國阿伯丁大學(xué)應用動(dòng)力學(xué)研究中心主任、International Journal of Mechanical Sciences雜志主編（中科院工程技術(shù)大類(lèi)2區, IF=4.631），以及二十多本雜志編委及中國力學(xué)學(xué)報海外編委。同時(shí)也被英國阿伯丁大學(xué)及波蘭羅茨科技大學(xué)授予榮譽(yù)博士，俄羅斯彼爾姆國立研究理工大學(xué)榮譽(yù)教授，美國羅格斯大學(xué)極端環(huán)境結構研究中心特聘顧問(wèn)教授、哈爾濱工業(yè)大學(xué)非線(xiàn)性動(dòng)力學(xué)研究中心特聘顧問(wèn)教授、阿根廷巴爾塞羅研究所特及巴里洛切原子能研究中心特聘教授。Wiercigroch教授出版專(zhuān)著(zhù)3本，參編15本著(zhù)作、發(fā)表論文近400篇，常年擔任世界各類(lèi)力學(xué)會(huì )議主席、分會(huì )主席及會(huì )議理事會(huì )成員；發(fā)起或組織數十場(chǎng)國際學(xué)術(shù)會(huì )議。據Google Scholar，論文總引用數逾7035次，h-index為46。他的主要研究方向包括：非線(xiàn)性動(dòng)力學(xué)與控制，具體研究包括：鉆探、金屬切削，轉子系統、水聲學(xué)、疲勞、再生能源等。

報告摘要：

In this talk I will guide the audience through the path of the new drilling technology development. The Resonance Enhanced Drilling (RED) is a new patented downhole drilling technology which has been conceived and developed by the Centre for Applied Dynamics Research at the University of Aberdeen. The RED technology offers unprecedented improvement in progression rates, reduction of cost and much smaller environmental footprint. The fundamental difference between RED and the current methods of a wellbore creation is the generation of a propagating dynamic crack zone ahead of the drill-bit by inducing high frequency axial loading. The focus will be given focus the mathematical modelling and experimental verification of the dynamics effects associated with RED and how to optimise the control parameters to achieve the best progression rates. The RED technology applies an adjustable high frequency dynamic stress in combination with rotary action. The resonance conditions between a drill-bit and drilled formation is maintained for varying drilling conditions by adjusting the frequency and amplitude of the excitation. The lecture will focus on the full scale experimental studies, where over 700% improvement in Rates of Penetration (ROP) when compared to the rotary drilling was achieved.

*本報告由燕山大學(xué)引才引智國際合作培育項目資助。

機械工程學(xué)院

2020年11月12日