【作者】 矫桂娥；

【导师】 张燎军；

【作者基本信息】 河海大学 ， 水工结构工程， 2002， 硕士

【摘要】 弧形闸门是水工结构工程中使用最广泛的闸门型式之一。鉴于其应用范围越来越广、设计任务越来越重，本文在UNIX平台上基于CAD技术研制开发了弧形闸门可视化CAD系统(HMVCAD系统)。其中关键技术是采用混合编程技术和人机交互方式来进行CAD系统设计，在UNIX图形工作站上以C语言为主控程序语言，以Fortran语言编制结构计算程序，采用OSF／Motif开发友好GUI，调用OpenGL函数库实现设计计算的可视化。本CAD系统具有较大的理论及实际应用价值。 首先，本文介绍可视化CAD系统的开发环境及其相关设计技术。系统调用X Window／Motif函数库实现工作站上图形用户界面(GUI)，介绍Windows／Motif的特点及功能。系统调用OpenGL三维图形库实现有限元前后处理数据的可视化，介绍了OpenGL的功能特点及调用的关键技术等。 其次，本文在分析了弧形闸门设计特点的基础上，按《水利水电工程钢闸门设计规范》(DL／T 5039-95，以下简称《规范》)给出了设计的理论依据，介绍了HMVCAD系统的模块设计方法，据此研制了能根据原始资料自动按规范设计的程序模块，以及据用户经验进行初步设计、优化调整、预警装置等功能模块。详细介绍了用HMVCAD系统设计弧形闸门的方法和实施进程。为提高系统的效率，提出了关于自建库、混合数据处理等关键技术。 最后，采用先进的空间薄壁结构有限元方法对设计的闸门结构进行计算分析，据此校核按规范进行的初始设计的合理性以及进行优化设计。介绍了有限元可视化技术，同时利用HMVCAD系统对设计的闸门进行了可视化计算分析。作为工程实例，对马甸弧形闸门的结构进行了有限元计算和分析，得到了闸门的结构应力、刚度以及支臂稳定的计算结果，并给予了比较分析。计算结果表明，本系统能正确有效地解决实际的工程问题，具有较大的实用价值。更多还原

【Abstract】 Radial Gate is one of type of gate used widely in Hydraulic Structure Engineering. Whereas more gates are applied and their design work is more and more burdensome,this paper studies and develops visual CAD system of radial gate based on CAD technique under UNIX platform (HMVCAD System). In this paper,key method is that it takes mixed programming means and human-machine mutual mode to develop CAD system;gives priority to C as master programming language in UNIX graphics workstation;puts to use Fortran working out structure’s computing program;adopts OSF/Motif scheming out friendly GUI;utilizes OpenGL function library achieving visualization of design calculation. The CAD system bears biggish theoretical worth and practical application values.Firstly,it introduces the system’s developing environment with its correlative method. The system invokes X Window/Motif function library to realize Graphics User Interface on workstation and recommends peculiarity and function of X Windows/Motif. At the same time,it invokes OpenGL graphics library to come true the visualization of data brought out by FEM Pre-processing and Post-processing and introduces OpenGL’s performance characteristics and key art in the process of the programming.Secondly,on the base of the analyzing design characteristic,this paper presents theoretical basis according to ’design specification about steel gate in Water Conservancy and Hydropower Engineering ’(thereinafter for short specification). It introduces module design means of HMVCAD system. In the light of this means,it develops the module that can design the gate according to original data and specification automatically,the module of making the original design by user’s experience,the module of majorized adjustment,the module of alarm device. In succession,this paper recommends the method and operating process of the design of a radial gate with HMVCAD system in detail. In order to raise the system’s efficiency,this paper puts forward self-proposed function library,blended data process etc.Finally,this paper adopts advanced spatial thin-walled structure FEM to analyze and compute the designed gate structure,hereby to check initial design’s reasonableness by specification and to conduct majorized design. It introduces visualization technique of FEM and makes a visual analysis of the designed gate with HMVCAD. For a project instance,it computes and analyzes the structure of MaDian radial gate with FEM,which achieves the result of gate’s structural stress,stiffness and surpport-bar’s stability and gives comparative analysis. The computational result suggests this system can solve practical engineering problem rightly and efficiently and owns the biggish applied value.更多还原