【作者】 刘兴华；

【导师】 曹云峰；

【作者基本信息】 南京航空航天大学 ， 控制理论与控制工程， 2011， 博士

【摘要】 “飞机数字化工程”是我国航空工业部门针对飞机传统研制方法存在的各种问题而启动的一项重要工程,其目的是通过该工程的研究推动数字化设计技术在飞机研制中的应用,解决传统研制方法存在的质量低、周期长和花费大等问题。飞控系统数字化设计是“飞机数字化工程”的重要组成部分,本文对此开展了深入的研究。首先,提出飞控系统数字化设计工程的总体方案。具体包括:①给出数字化设计的概念,结合飞控系统特点及其传统设计方法提出飞控系统分层数字化设计思路;②在此基础上研究飞控系统数字化设计环境的功能结构,并将其划分为顶层设计数字化设计环境、领域工程层次数字化设计环境及辅助功能环境三部分;③在研究分析当前技术的基础上,分别确定三部分的设计建模语言以及基于COTS技术的搭建方案。第二,对顶层数字化设计技术中的若干关键问题进行深入研究。具体包括:①以飞控系统设计为背景研究顶层数字化设计核心建模语言SysML的规范及图符;②深入分析SysML模型的体系结构、运行原理及底层代码组成,在此基础上给出基于SysML与Simulink的飞控系统概念样机组成方案,并研究SysML模型与Simuilnk模型之间的协同仿真及仿真可视化原理及实现;③在飞控系统传统顶层设计方法的基础上,结合SysML特点研究并设计飞控系统顶层数字化设计过程模型;第三,对领域工程层次的软件数字化设计技术进行深入的研究。具体包括:①以飞控软件数字化设计为背景研究软件数字化设计建模语言UML的规范及图符;②基于UML与SysML的同源性,在裁剪基于SysML顶层数字化设计过程模型的基础上设计基于UML的飞控软件(或其它机载应用软件)数字化设计过程模型;③研究飞控软件UML模型向特定目标平台源代码转换的关键因素——OXF框架适配器工作原理,并设计针对ArmLinux平台的适配器;第四,对支持顶层数字化设计的文档自动生成技术和模型数据管理技术进行深入的研究。具体包括:①研究确定顶层数字化设计文档自动生成方案,在此基础上设计与顶层数字化设计过程模型相匹配的文档模板;②在研究分析飞控系统顶层数字化设计产生的各类模型基础上,设计顶层数字化设计模型数据管理系统;第五,以案例无人机Predator的飞控系统PFCS为对象进行了数字化设计实践。首先进行顶层数字化设计,得到运行正确且满足设计要求的Predator飞控系统概念样机;然后基于PFCS概念样机中的相关模块对飞控软件进行数字化设计,得到满足设计要求的Predator飞控软件UML模型及软件代码。最后,对研究工作进行总结与展望。具体包括:①总结本文研究工作所取得的研究成果及创新;②提出进一步完善相关研究工作的思路。更多还原

【Abstract】 “Aircraft Digital Design & Manufacture Engineering (ADDME)”is a project that China aviation industry department starts for overcoming the disadvantages of traditional design method of aircraft, such as low quality, long period and costly. Digital design of Flight Control System (FCS) is an important part of ADDME, this paper focuses on it and does some research.First of all, the overall scheme of FCS digital design is proposed. The details include:①The concept of digital design and layered digital design idea of FCS is proposed.②On this basis, the function architecture of FCS digital design is researched and divided into three parts: top level digital design, domain level digital design and auxiliary functions.③Based on the currently technical conditions, the design & modeling language and supporting environments based on COTS are designed.The second part of this paper deeply researches on the top level digital design technology. The details include:①Specification, diagrams and application in FCS design of SysML, which is the core design & modeling language of top level digital design, are researched.②The structure, working principle and code component of SysML model built on top level design environments are analyzed firstly, on this basis, the FCS concept prototype schemes composed of SysML and Simulink model is given, and the collaborative simulation principle and simulation visualization problem are researched.③Based on traditional design process of FCS and characteristic of SysML, the top level digital design process model of FCS is studied and presented.④The top level digital design is finished by treating the FCS of UAV Predator as a research object, and the FCS concept prototype of Predator, which runs correctly and meets the design requirements, is obtained.The third part of this paper deeply researches on the software digital design technology of the domain level. The details include:①Specification, diagrams and application in flight control software design of UML are researched.②According the same characteristics of UML and SysML, the software digital design process model is presented based on cut and modification of high level process model.③OXF framework adapter design principle, which is the key factor of transforming from flight control software UML model to specific target platform source code, is researched.④As treating UAV Predator as a research object, the software digital design is finished, and the UML model of its flight control software, which meets the design requirements, is obtained.The fourth part of this paper deeply researches on the auxiliary function technology which supports the top level digital design. The details include:①The scheme of automatically generating high level digital design document is determined, on this basis, the document template, which matches the process model of top level digital design, is designed, then relevant design documents for Predator FCS designed in chapter 3 are generated.②Based on the analysis of models generated from top level digital design, its model management system is designed.At last, the research in this paper is concluded and prospected. The details include:①The achievements and innovation of this research are concluded.②The thought of completing relevant research work is proposed.更多还原