透過您的圖書館登入
IP:18.218.55.14
  • 學位論文

向量式有限元結合離散元素法應用於碰撞之數值模擬分析

Numerical Simulation Analysis of Impact Using Vector Form Intrinsic Finite Element and Discrete Element Method

指導教授 : 王仁佐
若您是本文的作者,可授權文章由華藝線上圖書館中協助推廣。

摘要


台灣因地域關係位屬颱風與地震等天然災害發生之高頻率地區,因此易造成土石流與岩塊崩落等現象,故本文之研究目的為發展了一套可模擬結合離散元素法(DEM)與向量式有限元(VFIFE)的計算方法,提出了顆粒與向量式有限元的剛架元素碰撞的數值分析程序,以Cundall所提出的離散元素法作為發展三維接觸理論之基礎,將包含正向和切向接觸力的碰撞力模型應用於顆粒-顆粒、顆粒-邊界、顆粒-剛架元素、剛架元素-剛架元素和剛架元素-邊界等五種本文所考慮的碰撞類型上,並對不同碰撞情形一一做驗證。

並列摘要


Taiwan has a special geographical position, and is often threatened by typhoon and earthquake, etc. Hence, the purpose of this research was provided a method for simulated discrete element method (DEM) and vector form intrinsic finite element (VFIFE) and also provided contact numerical analysis procedure with particles and frame element of VFIFE, use DEM as foundation for develop 3D contact theorem was provided by Cundall and include forward and tangential contact force model, and consider five contact types: particle to particle, particle to boundary, particle to frame element, frame element to frame element, and frame element to boundary and verified different contact cases.

參考文獻


[16] 吳柏翰,「三維圓球顆粒運動之數值模擬」,私立中原大學土木工程學系研究所,碩士論文,(2008)。
[17] 吳偉嘉,「圓球正向接觸臨界速度之參數研究」,私立中原大學土木工程學系研究所,碩士論文,(2008)。
[18] 張慰慈,「平行離散元素模擬及其應用於流固混合體之流動行為研究」,國立台灣大學土木工程學系研究所,博士論文,(2009)。
[1] Cundall, P. A., “A Computer Model for Simulating Progressive Large Scale Movements in Blocky Rock Systems”, in Proceedings of the Symposium of the International Society of Rock Mechanics (Nancy, France, 1971), Vol. 1, Paper No. II-8, (1971).
[2] Shi, G.-H.,“Discontinuous Deformation Analysis, A new Numerical Model for the Static and Dynamics of Block systems,”Ph. D. Thesis, Department of Civil Engineering, University of California at Berkeley ,(1988).

被引用紀錄


賴韻如(2012)。接觸力與剛體元素及非線性遲滯迴圈材料模型於PNS-PBC程式架構之研究〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2012.00211

延伸閱讀