面向对象的有限元和井架仿真系统
摘要
本论文在面向对象方法的基础上，叙述了面向对象的有限元技术。首先，论文描述了面向对象有限元方法的发展过程和它的一些特点和优点，从理论上论证了面向对象有限元技术的可行性。然后，针对平面和空间框架结构，编制了相应的程序。在程序中，给出了各个有限元类的定义以及实现函数；井架是石油钻井机械的重要组成部分，其安全承载能力对钻井工艺的实现起着举足轻重的作用。井架不仅结构极其复杂，而且在工作过程承受复杂的组合载荷作用。为确保井架安全有效地工作，必须对其安全承载能力作出评估。本论文用编制的程序分析了F320型和JJ250/42-K型石油钻机井架在几种工况下的应力、变形分布，及两种井架的固有模态、屈曲模态和可靠性，所得结果与SUPERSAP93的计算结果比较，应力和位移误差均相差很小，说明本程序系统是正确可行的。此外，还编制了有限元前后处理系统，在前处理中运用数据库存储数据，在后处理中用OPENGL技术来绘制图型。
On the base of Object-Oriented Paradigm,the method of Object-Oriented FEM (Finite Element Method) is described by this paper. Firstly,the course of development of .Object-Oriented FEM and its merits are depicted by the paper and,in turn,its feasibility of Object-Oriented FEM is demonstrated. Secondly,finite element program for plane and spatial frame structures are designed. Many classes in FEM and the relevant member functions are also defined. Derrick is an important structure of petroleum drilling machinery,and its carrying capacity is very important for the implement of drilling process. Not only is the structure of derrick complicated,but it endures complicated loads in the course of work. In order to ensure derrick works safely and effectively,it is necessary to evaluate its carrying capacity. Analyzed with the developed software,the stress and deformation distributions of F320 derrick and J250/42-K derrick under several working conditions are obtained. The results obtained here are consistent with tha
t obtained with SuperSap93,which illustrates the program is correct and practicable. Finally a FEM pre-processor and post processor is developed. The FEM pre-processor is integrated with the FEM software using database technology. The FEM post processor is integrated with the FEM software using Opengl technology.
On the base of Object-Oriented Paradigm,the method of Object-Oriented FEM (Finite Element Method) is described by this paper. Firstly,the course of development of .Object-Oriented FEM and its merits are depicted by the paper and,in turn,its feasibility of Object-Oriented FEM is demonstrated. Secondly,finite element program for plane and spatial frame structures are designed. Many classes in FEM and the relevant member functions are also defined. Derrick is an important structure of petroleum drilling machinery,and its carrying capacity is very important for the implement of drilling process. Not only is the structure of derrick complicated,but it endures complicated loads in the course of work. In order to ensure derrick works safely and effectively,it is necessary to evaluate its carrying capacity. Analyzed with the developed software,the stress and deformation distributions of F320 derrick and J250/42-K derrick under several working conditions are obtained. The results obtained here are consistent with tha
t obtained with SuperSap93,which illustrates the program is correct and practicable. Finally a FEM pre-processor and post processor is developed. The FEM pre-processor is integrated with the FEM software using database technology. The FEM post processor is integrated with the FEM software using Opengl technology.
引文
[1] B.WR Forde. R.O.Foschi·Objected-Oriented Finite Element Analysis·Comput. Struct·1990·35(3):517-529;
[2] S.P. Scholz·Elements of an Object-Oriented FEM++Program in C++·Compute. Struct·1992·43(3):517-529;
[3] B.WR Fored.R.O Foschi·Object-Orient Finite Element Analysis·Compute. Struct·1990·35(3): 355-374;
[4] R I Mackic·Object-Oriented Programming Ob ject-Oriented of the Finite Element Method·Inc. Jour. Num. Eng·1992·35:425-436;
[5] G R Miller·an Object-Oriented Approach to Structural Analysis and Design·Comput. Struct·1991·40(1):75-82;
[6] G L Fenves·Object-Oriented Programming for engineering software devekopment·Engng. Comput·1990·6:1-15;
[7] H N An-Nashif、G HPowell·An Ob ject-Oriented algorithm for autimated modeking of frame structures:Stifness modeling·Engng Comput·1991·7: 121-128;
[8] K L Lawarence.VYEE·Technical note C toutines for FEM applications·Comput. Struct·1992·44(5):1149-1167;
[9] B P Betting、R P S Han·An Ob ject-Oriented Frame Work for internective numerical analysis in a grahhical user interface environment·Int. Jour. Num. Meth. Eng·1996·39:2954-2971;
[10] X A Kong、D P Chen·An Ob ject-Oriented design of FEM program·Comput. Struct·1995·57(1):157-166;
[11] Bathe KJ·finite Element Proceedures in Engineering Analysis·Prentice-Hall·Erglewood Clifts·NJ·1982;
[12] 崔俊芝·有限元结构分析软件评述·计算结构力学及应用·1986年2月第三卷第二期；
[13] 古新生，王拓，王伟，《面向对象方法与C++》，西安交通大学，1992．12；
[14] Herbert Schildt，《最新C++程序设计精解》，电子工业出版社，1996．3；
[15] Kate Gregory，《VisualC++6.0开发使用手册》，机械工业出版社，1998．11；
[16]Peter NortonRob、McGregor·《MFC开发WINDOWS95/NT应用程序》，清华大学，1996；
[17]朱伯芳，《有限单元法原理与应用》，水力电力出版社，1979．8；
[18]崔俊之，梁俊，《现代有限元软件方法》，国防工业出版社，1995．5；
[19]J.E.艾金，《有限元法的应用与实现》，科学出版社，1982．2；
[20]孔祥安，《C++语言和面向对象有限元程序设计》，西南交通大学，1995．8；
[21]丘晖、郭庆、杨磊，《Delephi for Windows95开发指南》，电子工业出版社，1996．10；
[22]朱渝春，《杆系结构有限元法》，重庆大学出版社，1990；
[23]周本宽，曹中清，陈大鹏，面向对象有限元程序的类设计，计算结构力学及其应用，1996．6；
[24]严波 等，F320钻机井架静力有限元分析研究报告，重庆大学，四川石油管理局，1997。
[2] S.P. Scholz·Elements of an Object-Oriented FEM++Program in C++·Compute. Struct·1992·43(3):517-529;
[3] B.WR Fored.R.O Foschi·Object-Orient Finite Element Analysis·Compute. Struct·1990·35(3): 355-374;
[4] R I Mackic·Object-Oriented Programming Ob ject-Oriented of the Finite Element Method·Inc. Jour. Num. Eng·1992·35:425-436;
[5] G R Miller·an Object-Oriented Approach to Structural Analysis and Design·Comput. Struct·1991·40(1):75-82;
[6] G L Fenves·Object-Oriented Programming for engineering software devekopment·Engng. Comput·1990·6:1-15;
[7] H N An-Nashif、G HPowell·An Ob ject-Oriented algorithm for autimated modeking of frame structures:Stifness modeling·Engng Comput·1991·7: 121-128;
[8] K L Lawarence.VYEE·Technical note C toutines for FEM applications·Comput. Struct·1992·44(5):1149-1167;
[9] B P Betting、R P S Han·An Ob ject-Oriented Frame Work for internective numerical analysis in a grahhical user interface environment·Int. Jour. Num. Meth. Eng·1996·39:2954-2971;
[10] X A Kong、D P Chen·An Ob ject-Oriented design of FEM program·Comput. Struct·1995·57(1):157-166;
[11] Bathe KJ·finite Element Proceedures in Engineering Analysis·Prentice-Hall·Erglewood Clifts·NJ·1982;
[12] 崔俊芝·有限元结构分析软件评述·计算结构力学及应用·1986年2月第三卷第二期；
[13] 古新生，王拓，王伟，《面向对象方法与C++》，西安交通大学，1992．12；
[14] Herbert Schildt，《最新C++程序设计精解》，电子工业出版社，1996．3；
[15] Kate Gregory，《VisualC++6.0开发使用手册》，机械工业出版社，1998．11；
[16]Peter NortonRob、McGregor·《MFC开发WINDOWS95/NT应用程序》，清华大学，1996；
[17]朱伯芳，《有限单元法原理与应用》，水力电力出版社，1979．8；
[18]崔俊之，梁俊，《现代有限元软件方法》，国防工业出版社，1995．5；
[19]J.E.艾金，《有限元法的应用与实现》，科学出版社，1982．2；
[20]孔祥安，《C++语言和面向对象有限元程序设计》，西南交通大学，1995．8；
[21]丘晖、郭庆、杨磊，《Delephi for Windows95开发指南》，电子工业出版社，1996．10；
[22]朱渝春，《杆系结构有限元法》，重庆大学出版社，1990；
[23]周本宽，曹中清，陈大鹏，面向对象有限元程序的类设计，计算结构力学及其应用，1996．6；
[24]严波 等，F320钻机井架静力有限元分析研究报告，重庆大学，四川石油管理局，1997。