臺灣博碩士論文加值系統

　　道路上的補綻會帶來鋪面的不平整,當車輛行經時會對車輛與鋪面造成額外的動態荷重此動態荷重是觀察鋪面應力與預估鋪面壽命的重要因素車輛與鋪面會結合成一互制系統,故於分析動態荷重時不能就單一的車輛或鋪面系統來探討本篇論文以有限元素套裝軟體ABAQUS建立一2-D的互制模型,用以探討於互制模型中車輛或鋪面的各部參數會如何影響動態荷重,一簡化的四分車模型以等速滑行於鋪面模型上,而此鋪面模型包含了鋪面不平整,以此觀察其動態反應在車輛模型中,車體質量與輪胎質量是分開定義的,並且在輪胎與鋪面之間加入輪胎接觸彈簧以模擬輪胎彈性,如此更接近真實情況本篇論文將探討互制模型中各參數對動態荷重的影響並比較在不同條件下的動態反應,以期找出最適合的動態分析模型。

　Patching on roads results in pavement irregularity, and this makes an additional dynamic load to both vehicle and pavement systems. Dynamic load is the key factor for stress and life assessment of pavement. Because the vehicle and pavement interact as a coupled system, the dynamic response cannot be solved with either isolated pavement system or vehicle kinematic formation. A 2-D interacting model was constructed with ABAQUS to investigate how the pavement-vehicle parameters affect the dynamic responses. A quarter car model was constructed to simulate a moving load sliding on pavement with surface roughness. Besides the mass of the vehicle carriage, the tire of the quarter car was given an isolated mass as a real car. In order to make the contact interaction more factually, a linear spring was adopted to model the tire elasticity. The pavement-vehicle interacting model was also given different conditions and compared with each other to find out an optimum model.

CHAPTER ONE ......................................................................................................1
INTRODUCTION....................................................................................................1
　1-1 PROBLEM STATEMENT.........................................................................1
　1-2 REVIEW OF PAVEMENT ANALYSIS.....................................................2
　1-3 Motive .........................................................................................................4
　1-4 OBJECTIVES ............................................................................................5
　1-5 SCOPE ........................................................................................................5
CHAPTER TWO .....................................................................................................9
FINITE ELEMAENT MODELS OF INTERACTION ..........................................9
　2-1 CONTACTING AND SLIDING IN ABAQUS ..........................................9
　2-2 CONSTRUCTION OF ABAQUS INTERACTING MODEL ................12
　　2-2-1 THE ADOPTION OF ABAQUS ELEMENT ...............................12
　　2-2-2 THE VEHICLE AND THE PAVEMENT MODEL IN ABAQUS14
　　　PAVEMENT SYSTEM .....................................................................14
VEHICLE SYSTEM.........................................................................15
　　　CONTACT MODE ...........................................................................15
　　2-2-3 MODELING THE SURFACE　ROUGHNESS .............................16
　2-3 PARAMETERS OF ABAQUS CONTACT SLINDNG ...........................18
　　　VELOCITY ......................................................................................18
　　　SLIDING DISTANCE OF VEHICLE ...............................................18
　　　THICKNESS ....................................................................................19
　　　THE ANGLE OF BUMP ..................................................................19
　　　THE HEIGHT OF BUMP .................................................................19
　　　MESH...............................................................................................20
CHAPTER THREE ...............................................................................................21
THE ANALYSIS OF A QUARTER CAR..............................................................21
　3-1 THE COUPLED MODEL OF A QUARTER CAR AND PAVEMENT..21
　3-2 ANALYSIS WITH DIFFERENT MODELS ...........................................22
　　3-2-1 STEPS IN ABAQUS ......................................................................23
　　3-2-2 THE OPTION “HAFTOL”IN ABAQUS........................................24
　　3-2-3 THE SIGNIFICANCE OF CONTACT SPRING .........................24
　3-3 THE CONVERGENCE OF THE MODEL.............................................26
　3-4 THE DYNAMIC RESPONSE UNDER DIFFERENT PARAMETERS 28
　　3-4-1 THE DYNAMIC RESPONSE UNDER DIFFERENT
VELOCITY.............................................................................................28
　　3-4-2 THE EFFECTS OF BUMP ANGLE .............................................30
　　3-4-3 THE EFFECTS OF PAVEMENT THICKNESS ..........................32
　　3-4-4 THE EFFECS OF BUMP HEIGHT .............................................33
CHAPTER FOUR ..................................................................................................36
CONCLUSIONS AND RECOMMENDATIONS .................................................36
　4-1 CONCLUSIONS ......................................................................................36
　4-2 RECOMMENDATIONS ..........................................................................37
REFERENCES.......................................................................................................38

1.　ABAQUS/Standard User’s Manual Version 6.3
2.　Chatti, Karrim, Lysmer, J., and Monismith, Carl L., “Dynamic Finite-Element Analysis of Jointed Concrete Pavements,”Transportation Research Record , 1449, pp. 79-90, 1994
3.　Hardy, M. S. A. and Cebon, D.,”Response of Continuous Pavements to Moving Dynamics Loads,” ASCE J. Engng. Mechanics, 119, pp. 1762-1780, 1993
4.　Hardy, M. S. A. and Cebon,D.”Importance of Speed and Frequency in Flexible Pavement Response,”ASCE J. Engng. Mechanics, 120, pp. 463-482, 1994
5.　Huang, M.-H. and Thambiratnam, D. P.,“Dynamic Response of Plates on Elastic Foundation to Moving Loads,”Journal of Engineering Mechanics, 128, pp. 1016-1022, 2002
6.　Huang, Yang Hsien ,”Pavement Analysis and Design”,Prentice Hall Inc., 1993
7.　Liu, Chiu and Herman, Robert,”Roadway-Vehicle Interaction, Physical Indexes, and Human Judgment of Ride Quality,”Transportation Research Record, 1570, pp. 55-59, 1997
8.　Liu, Chiu, associate members, ASCE, and Gazis, Denos, ”Surface Roughness Effect on Dynamic Response of Pavements,”
Journal of Engineering Mechanics, 125, pp. 332-337, 1999
9.　Liu, Chiu, P.E., McCullough, B. Frank, P.E. and Oey, Hong S., P.E., members, ASCE,”Response of Rigid Pavements Due to Vehicle-Road Interaction,”Journal of Engineering Mechanics, 126, pp. 237-242, 2000
10.　Mikhail, Magdy Y. and Mamlouk, Michael S.,“Effect of Vehicle-Pavement Interaction on Pavement Response,”Transportation Research Record, 1570, pp. 78-88, 1997
11.　Nasim, Muhammad A., Karamihas, Steven M., Gillespie, Thomas D.,Hansen, Will, and Cebon, David, ”Behavior of Rigid Pavement Under Moving Dynamic Loads,”Transportation Research Record, 1307, pp. 129-135, 1992
12.　Papagianninakis, A. T. and Taha, R. , ”Formulation for Viscoelastic Response of Pavements under Moving Dynamic Loads,”Journal of Transportation Engineering, March/April, pp. 140-145, 1996
13.　Todd, Kevin B. and Kulalowski, Bohdan T. , “Simple Computer Model for Prediction Ride Quality and Pavement Loading for Heavy Trucks,”Transportation Research Record, 1215, pp. 137-150, 1989
14.　Taheri,M. R., and Ting, E. C. ”Dynamic Response of Plates to Moving　Loads:Finite Element Method,”comp. & struct., 34, pp. 509-521, 1990
15.　Taheri, M. R. and Zaman, M. M., ”Effects of a Moving Aircraft and Temperature Differential on Response of Rigid Pavements,” Computers & Structures, 57, pp. 503-511,1995
16.　Wu, Chih-Ping and Shen, Pao-Anne, ”Dynamic Analysis of Concrete Pavements Subjected to Moving Loads,” Journal of transportation Engineering, 122, pp. 367-373, 1995
17.　Zaman, Musharraf and Alvappillai, Arumugam, ”Contact-Element Model for Dynamic Analysis of Jointed Concrete Pavements,” Journal of Transportation Engineering, 121, 1995
18.　邱垂德(Qiu)，「路面平坦度驗收規範之檢討研究」，交通部台灣區國道新建工程局研究報告122，2000
19.　周鎰鋐，「剛性鋪面受糙度與移動車體質量引發動態荷重影響分析」，國立成功大學土木工程研究所碩士論文，2003
20.　張孟孔(Zhang)、周家蓓，「鋪面糙度與動態荷重互制模式之建立」，國立台灣大學土木工程研究所碩士論文，1995
21.　張其教(Zhang)、張家瑞、宏竟聰與林志棟，「鋪面粗糙度量側記評估指標探討」，中華道路，第三十八卷第四期, pp. 30-40, 1999
22.　張立軍、余卓平，「螺旋彈簧的駐波效應對懸架隔振特性的影響」，上海同濟大學汽車學院。http://www.paper.edu.cn/scholar/download.jsp?file=yuzhuoping-7