可移动式救生舱的舱体研究与试验分析
发布时间：2018-11-08 14:58
【摘要】：本文总结了国内外救生舱发展现状,并在理论上和实践上对救生舱进行了研究与分析。理论上,基于有限元和动力学理论对救生舱结构进行了静力学、冲击动力学分析以及热防护性能的分析。运用Pro/E软件建立参数化模型,并结合ANSYS对救生舱结构进行了优化分析,为救生舱结构的改进奠定基础。在实践上,对救生舱的综合性能进行了真人试验,检验了救生舱在矿下灾变环境下的防护性能与维生能力。主要内容包括： (1)对方圆结合舱体的结构进行设计,并利用ANSYS Workbench对救生舱结构进行静态刚度与强度的分析。通过静力学分析获得了该结构的应力云图、变形云图,然后对结果进行了分析与评价,得出舱体在受0.3MPa压力时的最大变形量发生处和最大应力集中处,为后续的优化设计中的参数设置提供依据。 (2)在静力学分析的基础上对救生舱结构进行了优化分析。利用ANSYS Workbench的Design Exploration功能,分析了不同参数对救生舱结构变形、应力的影响,为救生舱结构的优化设计提供了基础。对救生舱结构的尺寸进行了初步优化,并且对比了优化前后救生舱结构刚度和强度。 (3)对救生舱结构进行抗冲击性能分析。利用AUTODYN对矿下瓦斯爆炸对舱体的影响进行数值模拟分析,得出舱体受冲击载荷时的压力历史曲线图,并对舱体所受压力历史曲线进行简化,然后在此基础上利用LS-DYNA对救生舱的抗冲击动力响应进行分析,得出舱体在受冲击载荷时舱体和法兰的应力、变形的大小,结果表明优化后的舱体符合抗爆要求。 (4)基于ANSYS Workbench对救生舱进行热防护性能分析。提出舱体隔热结构并在理论上对比分析了救生结构的两种隔热方式,然后利用Transient Thermal模块对较好的一种隔热方式进行模拟,得出舱内温度的变化曲线,为救生舱内部系统的研究提供理论依据。 (5)对救生舱进行综合性能试验。模拟矿下高温环境,进行载人试验,观察舱内各参数的变化,考察救生舱的维生性能和热防护性能。通过试验验证了舱体的隔热性能良好,得到了实际用气量,了解了106小时内舱内人员的活动情况。 综上所述,本课题主要完成了方圆结合的救生舱舱体结构设计,这是一种新型的救生舱结构。然后对舱体结构进行了静力分析,并在此基础上优化了舱体尺寸参数。利用显示动力学软件对优化后的舱体进行了抗爆性能分析。最后对舱体的隔热性能进行了6模拟分析和试验研究,并得到了较好的试验效果。
[Abstract]:This paper summarizes the development of lifebuoys both at home and abroad, and studies and analyses lifebuoys in theory and practice. In theory, based on finite element and dynamics theory, the statics, impact dynamics and thermal protection performance of lifebuoy structures are analyzed. The parameterized model is established by using Pro/E software, and the structure of the lifebuoy is optimized and analyzed with ANSYS, which lays a foundation for the improvement of the structure of the lifebuoy. In practice, the comprehensive performance of the capsule is tested in real life, and the protective performance and survival ability of the capsule in the environment of mine disaster are tested. The main contents are as follows: (1) the structure of the circular joint cabin is designed, and the static stiffness and strength of the lifebuoy structure are analyzed by ANSYS Workbench. The stress cloud diagram and deformation cloud diagram of the structure are obtained by statics analysis, and then the results are analyzed and evaluated, and the maximum deformation and the maximum stress concentration of the cabin under 0.3MPa pressure are obtained. It provides the basis for the parameter setting in the subsequent optimization design. (2) on the basis of static analysis, the structure of lifebuoy is optimized. By using the Design Exploration function of ANSYS Workbench, the influence of different parameters on the deformation and stress of the lifebuoy structure is analyzed, which provides the basis for the optimum design of the lifebuoy structure. The dimensions of the lifebuoy are preliminarily optimized, and the structural stiffness and strength of the lifebuoy are compared before and after the optimization. (3) the impact resistance of the structure is analyzed. The influence of gas explosion under mine on the cabin is simulated by AUTODYN, and the pressure history curve of the cabin subjected to impact load is obtained, and the pressure history curve of the cabin is simplified. On the basis of this, the impact dynamic response of the lifebuoy is analyzed by using LS-DYNA, and the stress and deformation of the cabin and flange under the impact load are obtained. The results show that the optimized cabin meets the requirements of anti-explosion. (4) the thermal protection performance of lifebuoy is analyzed based on ANSYS Workbench. In this paper, the thermal insulation structure of the cabin is put forward and the two thermal insulation modes of the life-saving structure are compared and analyzed in theory. Then the better thermal insulation method is simulated by using Transient Thermal module, and the variation curve of the cabin temperature is obtained. It provides a theoretical basis for the study of the interior system of the lifebuoy. (5) A comprehensive performance test is carried out on the lifebuoy. In order to simulate the high temperature environment under the mine, the manned test was carried out, and the changes of the parameters in the cabin were observed, and the maintenance performance and thermal protection performance of the lifeguard capsule were investigated. The results show that the thermal insulation of the cabin is good, the actual gas consumption is obtained, and the movement of the occupants in the cabin is understood within 106 hours. To sum up, this paper mainly completes the structure design of lifebuoy cabin which is a new type of lifebuoy structure. Then, static analysis of the cabin structure is carried out, and the parameters of the cabin size are optimized on the basis of the static analysis. The anti-explosion performance of the optimized cabin was analyzed by using display dynamics software. Finally, the thermal insulation performance of the cabin is simulated and studied, and a good test result is obtained.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD774
本文编号：2318823
[Abstract]:This paper summarizes the development of lifebuoys both at home and abroad, and studies and analyses lifebuoys in theory and practice. In theory, based on finite element and dynamics theory, the statics, impact dynamics and thermal protection performance of lifebuoy structures are analyzed. The parameterized model is established by using Pro/E software, and the structure of the lifebuoy is optimized and analyzed with ANSYS, which lays a foundation for the improvement of the structure of the lifebuoy. In practice, the comprehensive performance of the capsule is tested in real life, and the protective performance and survival ability of the capsule in the environment of mine disaster are tested. The main contents are as follows: (1) the structure of the circular joint cabin is designed, and the static stiffness and strength of the lifebuoy structure are analyzed by ANSYS Workbench. The stress cloud diagram and deformation cloud diagram of the structure are obtained by statics analysis, and then the results are analyzed and evaluated, and the maximum deformation and the maximum stress concentration of the cabin under 0.3MPa pressure are obtained. It provides the basis for the parameter setting in the subsequent optimization design. (2) on the basis of static analysis, the structure of lifebuoy is optimized. By using the Design Exploration function of ANSYS Workbench, the influence of different parameters on the deformation and stress of the lifebuoy structure is analyzed, which provides the basis for the optimum design of the lifebuoy structure. The dimensions of the lifebuoy are preliminarily optimized, and the structural stiffness and strength of the lifebuoy are compared before and after the optimization. (3) the impact resistance of the structure is analyzed. The influence of gas explosion under mine on the cabin is simulated by AUTODYN, and the pressure history curve of the cabin subjected to impact load is obtained, and the pressure history curve of the cabin is simplified. On the basis of this, the impact dynamic response of the lifebuoy is analyzed by using LS-DYNA, and the stress and deformation of the cabin and flange under the impact load are obtained. The results show that the optimized cabin meets the requirements of anti-explosion. (4) the thermal protection performance of lifebuoy is analyzed based on ANSYS Workbench. In this paper, the thermal insulation structure of the cabin is put forward and the two thermal insulation modes of the life-saving structure are compared and analyzed in theory. Then the better thermal insulation method is simulated by using Transient Thermal module, and the variation curve of the cabin temperature is obtained. It provides a theoretical basis for the study of the interior system of the lifebuoy. (5) A comprehensive performance test is carried out on the lifebuoy. In order to simulate the high temperature environment under the mine, the manned test was carried out, and the changes of the parameters in the cabin were observed, and the maintenance performance and thermal protection performance of the lifeguard capsule were investigated. The results show that the thermal insulation of the cabin is good, the actual gas consumption is obtained, and the movement of the occupants in the cabin is understood within 106 hours. To sum up, this paper mainly completes the structure design of lifebuoy cabin which is a new type of lifebuoy structure. Then, static analysis of the cabin structure is carried out, and the parameters of the cabin size are optimized on the basis of the static analysis. The anti-explosion performance of the optimized cabin was analyzed by using display dynamics software. Finally, the thermal insulation performance of the cabin is simulated and studied, and a good test result is obtained.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD774
【参考文献】
相关期刊论文 前10条
1 杨源林;瓦斯煤尘爆炸的超压计算与预防[J];煤炭工程师;1996年02期
2 许佩霞;胡勇;;救生舱的结构的优化设计与试验分析[J];船舶力学;2011年11期
3 张玉周;姚斌;叶军君;;瓦斯爆炸冲击波传播过程的数值模拟[J];机电技术;2007年03期
4 范江东;靳宇晖;;矿用救生舱的初步研究[J];机械管理开发;2012年02期
5 马天宝;宁建国;;三维爆炸与冲击问题仿真软件研究[J];计算力学学报;2009年04期
6 王光明;郑开顺;;爆炸冲击波在巷道内的传播规律[J];江汉石油职工大学学报;2007年06期
7 王长江;胡元;梁允魁;;基于LS-DYNA矿用救生舱抗爆性能的仿真分析[J];科技信息;2012年01期
8 相桂生;;应急避难室在矿难救援中的应用[J];劳动保护;2006年04期
9 高广伟;张禄华;;煤矿井下移动救生舱的设计思路[J];中国安全生产科学技术;2009年04期
10 汪声;金龙哲;栗婧;;国外矿用应急救生舱技术现状[J];中国安全生产科学技术;2010年04期
，本文编号：2318823
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2318823.html
