本文選題：救生艙　切入點(diǎn)：結(jié)構(gòu)設(shè)計(jì)　出處：《西安科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：目前，礦用救生艙關(guān)鍵技術(shù)研究已經(jīng)成為國內(nèi)外專家學(xué)者熱點(diǎn)關(guān)注的工程科學(xué)問題。如何保證救生艙艙體抗爆性能則是重中之重的問題，，也是設(shè)計(jì)標(biāo)準(zhǔn)建立的理論依據(jù)和基本原則。雖然國外在救生艙艙體設(shè)計(jì)方面已經(jīng)有成功應(yīng)用的案例，但我國煤礦井下環(huán)境具有自身特點(diǎn)，進(jìn)口救生艙艙體價(jià)格比較昂貴，所以我國救生艙艙體的自主研發(fā)就具有重要意義。但是救生艙艙體研究方面缺乏一定的設(shè)計(jì)理論依據(jù)和設(shè)計(jì)標(biāo)準(zhǔn)，使得整個(gè)開發(fā)過程需要進(jìn)行設(shè)計(jì)-數(shù)值模擬試驗(yàn)-物理模擬試驗(yàn)-修改設(shè)計(jì)多次反復(fù)探索，造成救生艙艙體研發(fā)周期長、成本高、危險(xiǎn)性大。因此，本文在對(duì)國內(nèi)外救生艙艙體形狀及結(jié)構(gòu)分析的基礎(chǔ)上，設(shè)計(jì)出適合我國煤礦井下實(shí)際環(huán)境需求的救生艙艙體，并利用有限元ANSYS軟件對(duì)設(shè)計(jì)的救生艙艙體進(jìn)行數(shù)值模擬計(jì)算及抗爆性能對(duì)比分析，最終得到最優(yōu)的救生艙艙體結(jié)構(gòu)，為較高抗爆性能和低成本的救生艙艙體研發(fā)提供一定的理論依據(jù)。主要的研究內(nèi)容如下： (1)在對(duì)目前國內(nèi)外礦用救生艙艙體研究現(xiàn)狀、艙體形狀結(jié)構(gòu)及有限元數(shù)值模擬方法分析基礎(chǔ)上，建立符合我國煤礦瓦斯爆炸實(shí)際情況的救生艙艙體抗爆性能數(shù)值模擬計(jì)算方案，包括救生艙艙體幾何模型、材料模型、單元類型、載荷大小及施加方式； (2)根據(jù)國內(nèi)外各種形狀救生艙艙體抗爆性能及其適用性，對(duì)方形和拱形兩種形狀救生艙艙體進(jìn)行初步設(shè)計(jì)和數(shù)值模擬計(jì)算，得到應(yīng)力應(yīng)變分布規(guī)律，并進(jìn)行抗爆性能安全性對(duì)比分析，得出在同等參數(shù)條件下方形救生艙艙體具有較好的抗爆性能； (3)針對(duì)目前救生艙艙體逃生窗放置在艙體中間部位造成有毒氣體進(jìn)入生存艙的問題，以及瓦斯爆炸對(duì)救生艙艙體整體抗爆性能、救生艙逃生窗抗爆性能和逃生線路產(chǎn)生影響等問題，本文基于方形救生艙艙體形狀對(duì)逃生窗分別在救生艙過渡艙、生存艙中部、生存艙后部等幾種救生艙艙體結(jié)構(gòu)進(jìn)行設(shè)計(jì)，并利用ANSYS軟件對(duì)設(shè)計(jì)的幾種救生艙艙體結(jié)構(gòu)進(jìn)行數(shù)值模擬計(jì)算及抗爆性能安全性分析，通過對(duì)比數(shù)值模擬分析結(jié)果得到最優(yōu)的救生艙艙體結(jié)構(gòu)； (4)對(duì)確定的最優(yōu)救生艙艙體結(jié)構(gòu)進(jìn)行不同沖擊載荷及不同參數(shù)下的數(shù)值模擬計(jì)算及抗爆性能安全性分析，得到一系列滿足不同抗爆性能要求的救生艙艙體結(jié)構(gòu)設(shè)計(jì)參數(shù)推薦值，為高抗爆性能和低成本的救生艙艙體研發(fā)提供一定理論依據(jù)。
[Abstract]:At present, the research on key technology of mine lifebuoy has become an engineering scientific problem that experts and scholars at home and abroad pay close attention to. How to ensure the anti-explosion performance of lifebuoy cabin is the most important problem. It is also the theoretical basis and basic principle for the establishment of design standard. Although there have been successful cases in the design of lifebuoys in foreign countries, the underground environment of coal mines in our country has its own characteristics, and the imported lifebuoys are more expensive. Therefore, the independent research and development of the lifebuoy cabin in our country is of great significance. However, there is a lack of theoretical basis and design standards for the research of the lifebuoy cabin. It makes the whole development process need to carry on the design-numerical simulation test-physical simulation test-modify the design many times to explore, causes the lifebuoy cabin body research and development cycle to be long, the cost is high, the danger is high, therefore, Based on the analysis of the shape and structure of the lifebuoy cabin at home and abroad, this paper designs a lifebuoy cabin suitable for the actual environmental requirements of the coal mine in our country. Finally, the optimal structure of the lifebuoy cabin is obtained by using the finite element ANSYS software to carry out numerical simulation calculation and comparative analysis of the anti-explosion performance of the designed lifebuoy cabin. The main contents of this paper are as follows: (1) to provide some theoretical basis for the research and development of lifebuoys with high anti-explosion performance and low cost. 1) based on the analysis of the present research situation, the shape and structure of the cabin and the finite element numerical simulation method at home and abroad, a numerical simulation calculation scheme for the anti-explosion performance of the lifebuoy cabin is established, which accords with the actual situation of coal mine gas explosion in China. Including the lifebuoy cabin geometry model, material model, unit type, load size and application mode; (2) according to the anti-explosion performance and its applicability of lifebuoys of various shapes at home and abroad, the preliminary design and numerical simulation of the lifebuoys with square and arched shapes are carried out, and the distribution of stress and strain is obtained. By comparing and analyzing the safety of the anti-explosion performance, it is concluded that the square lifebuoy cabin has better anti-explosion performance under the same parameters. (3) aiming at the problem of poisonous gas entering the survival cabin caused by the placement of escape windows in the middle of the cabin at present, as well as the overall anti-explosion performance of the lifebuoy cabin by gas explosion, In this paper, based on the shape of the square lifebuoy cabin, the structure of the escape window is designed in the transition cabin, the middle part of the survival cabin, the rear part of the survival cabin, and so on. The numerical simulation calculation and the safety analysis of anti-explosion performance of several lifebuoy cabin structures are carried out by using ANSYS software, and the optimum lifebuoy cabin structure is obtained by comparing the results of numerical simulation analysis. 4) numerical simulation and safety analysis of the optimum lifebuoy cabin structure under different impact loads and different parameters are carried out, and a series of recommended values for the structural design parameters of the lifebuoy cabin which meet the different requirements of anti-explosion performance are obtained. It provides a theoretical basis for the research and development of high anti-explosion and low-cost lifebuoys.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TD774

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