本文關(guān)鍵詞：汽輪機(jī)建�？梢暬P(guān)鍵技術(shù)研究　出處：《山東建筑大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 建�？梢暬� 改進(jìn)圖存儲(chǔ)結(jié)構(gòu) 力導(dǎo)向模型 部件建模 數(shù)學(xué)模型可視化

【摘要】：隨著信息化技術(shù)的發(fā)展,汽輪機(jī)向著復(fù)雜化和多樣化方向發(fā)展,其建�？梢暬沧兊糜又匾�。目前,國(guó)產(chǎn)汽輪機(jī)建模可視化水平不高、交互操作性較差、依賴性較強(qiáng),國(guó)外相關(guān)軟件雖然技術(shù)較好,但是許可費(fèi)用高昂,熱力系統(tǒng)中許多通用部件的圖形符號(hào)差異較大,難于二次開發(fā)。因此,開展汽輪機(jī)建�？梢暬P(guān)鍵技術(shù)的研究具有非常重要的理論意義和實(shí)用價(jià)值。本課題在借鑒國(guó)內(nèi)外已有相關(guān)研究的基礎(chǔ)上,以汽輪機(jī)給水系統(tǒng)作為研究對(duì)象,研究了汽輪機(jī)建�？梢暬年P(guān)鍵技術(shù)：模塊化構(gòu)建部件特性模型、部件及其數(shù)學(xué)模型的可視化建模。本論文完成的主要工作如下：(1)分析研究了汽輪機(jī)設(shè)備部件及其可視化建模。深入研究了汽輪機(jī)給水熱力系統(tǒng)及其熱力設(shè)備,提取構(gòu)建仿真系統(tǒng)的基本組件——部件,采用面向?qū)ο蟮慕Ｋ枷虢⒘私o水系統(tǒng)熱力設(shè)備部件模型,通過部件間的關(guān)聯(lián)組合來構(gòu)建熱力系統(tǒng)；詳細(xì)研究了滿足快速查詢要求的關(guān)聯(lián)算法,提出了基于哈希表的改進(jìn)圖存儲(chǔ)結(jié)構(gòu)來存儲(chǔ)熱力系統(tǒng)拓?fù)浣Y(jié)構(gòu)。(2)提出了基于改進(jìn)力導(dǎo)向模型的熱力系統(tǒng)自動(dòng)布局算法。詳細(xì)研究了傳統(tǒng)力導(dǎo)向模型理論,分析了其存在的問題,對(duì)力導(dǎo)向模型進(jìn)行了改進(jìn),將超松弛加速算法引入到力導(dǎo)向模型中,加速其迭代收斂速度,有效提高布局速度。(3)分析研究了部件及其數(shù)學(xué)模型的可視化方法。用戶可在系統(tǒng)參數(shù)配置過程中在線輸入、修改已繪制的部件及其數(shù)學(xué)模型公式；在系統(tǒng)運(yùn)行過程中,系統(tǒng)實(shí)時(shí)檢查是否有滿足條件的外界事件發(fā)生,從而改變模型狀態(tài)——利用模型數(shù)學(xué)公式求得相應(yīng)的模型變量結(jié)果并將其在每個(gè)步長(zhǎng)計(jì)算結(jié)束后同步更新到相應(yīng)的模型變量中。(4)實(shí)現(xiàn)了對(duì)汽輪機(jī)機(jī)組的基礎(chǔ)數(shù)據(jù)和計(jì)算分析結(jié)果可視化支持。設(shè)計(jì)并實(shí)現(xiàn)了通用建�？梢暬丶�,可提供多種可視化顯示效果,包括汽輪機(jī)機(jī)組基礎(chǔ)數(shù)據(jù)的可視化、計(jì)算分析結(jié)果的可視化等。(5)設(shè)計(jì)和開發(fā)了汽輪機(jī)給水熱力系統(tǒng)的設(shè)備部件模型、系統(tǒng)模型、數(shù)學(xué)模型可視化原型系統(tǒng)。為將來進(jìn)行半實(shí)物仿真、實(shí)物仿真以及工程應(yīng)用做準(zhǔn)備。汽輪機(jī)建�？梢暬拖到y(tǒng)基于windows平臺(tái)、采用面向?qū)ο蟮姆治龊驮O(shè)計(jì)方法、使用C#語言實(shí)現(xiàn)。通過使用某電廠的給水系統(tǒng)實(shí)際數(shù)據(jù)對(duì)軟件進(jìn)行了仿真測(cè)試,實(shí)驗(yàn)結(jié)果表明：基于模塊化思想進(jìn)行給水系統(tǒng)部件及其連接以及部件和系統(tǒng)數(shù)學(xué)模型可視化是可行的,構(gòu)建的可視化系統(tǒng)具有良好的通用性和靈活性。本論文的研究成果對(duì)開發(fā)汽輪機(jī)建�？梢暬a(chǎn)品提供了必要的理論基礎(chǔ)和關(guān)鍵技術(shù),具有一定的理論意義和應(yīng)用價(jià)值。
[Abstract]:With the development of information technology, the steam turbine becomes more and more complicated and diversified, and its modeling visualization becomes more and more important. At present, the visualization level of domestic steam turbine modeling is not high, and the interaction is poor. The dependence is strong, although the foreign related software technology is good, but the license fee is high, many common parts in the thermodynamic system are different in graphic symbols, so it is difficult to secondary development. It is of great theoretical significance and practical value to develop the key technology of steam turbine modeling visualization. Based on the relevant research at home and abroad, this paper takes the steam turbine feedwater system as the research object. The key technology of steam turbine modeling visualization, modular component characteristic model, is studied in this paper. Visual Modeling of components and their Mathematical models. The main work of this thesis is as follows: 1). The steam turbine equipment components and their visual modeling are analyzed, and the steam turbine feedwater thermodynamic system and its thermal equipment are studied in depth. The basic component of the simulation system is extracted, and the component model of the thermal equipment of the water supply system is established by using the object-oriented modeling idea, and the thermodynamic system is constructed by the association combination of the components. The association algorithm to satisfy the requirement of fast query is studied in detail. In this paper, an improved graph storage structure based on hash table is proposed to store the topology of thermal system. (2) the automatic layout algorithm of thermal system based on improved force guidance model is proposed. The traditional force guidance model theory is studied in detail. The existing problems are analyzed and the force guidance model is improved. The overrelaxation acceleration algorithm is introduced into the force guidance model to accelerate its iterative convergence rate. The visualization method of component and its mathematical model is analyzed and studied. The user can input on-line in the process of system parameter configuration and modify the drawn part and its mathematical model formula. During the running of the system, the system checks in real time whether there are any external events that meet the conditions. Thus changing the state of the model-using the mathematical formula of the model to obtain the corresponding model variables and update them to the corresponding model variables synchronously after each step size calculation. The visualization support of basic data and calculation analysis result of steam turbine unit is realized, and the general modeling visual control is designed and implemented. It can provide many visual display effects, including visualization of basic data of steam turbine unit, visualization of calculation and analysis results, etc.) the equipment component model of steam turbine feed water thermal system is designed and developed. System model, mathematical model visualization prototype system. For the future hardware-in-the-loop simulation, physical simulation and engineering applications. Steam turbine modeling visualization prototype system based on windows platform. By using the object-oriented analysis and design method and C # language, the software is simulated and tested by using the actual data of the water supply system of a power plant. The experimental results show that it is feasible to visualize the parts and connections of water supply system and the mathematical model of components and systems based on modularization. The visualization system has good generality and flexibility. The research results of this paper provide the necessary theoretical basis and key technology for the development of turbine modeling visualization products. It has certain theoretical significance and application value.
【學(xué)位授予單位】：山東建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TK26

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