【作者】 魏光超；

【导师】 李世伦；

【作者基本信息】 浙江大学 ， 机械电子工程， 2010， 硕士

【摘要】 21世纪,人类将进入海洋经济的时代。深海开发不仅对于海洋生物、微生物、海洋矿产以及其它资源的开发是必不可少的,而且对于地球结构和运动的地质研究是必须的。在海底热液环境与深海生物活动模拟实验研究中,支撑技术的的重要性是无可替代的。通过对极端环境模拟系统中培养釜的研制,将解决我国深海生物及其基因资源研究开发中一个重要技术瓶颈。同时,将提高我国极端环境重大装备开发的能力,积累从元部件到系统开发的原始创新能力。针对设计的培养釜必须具有以下功能:能够承受极端环境的高温(0～400℃)高压(0～60MPa);操作便捷,快速开启功能;密封安全可靠。论文结合ANSYS有限元分析方法对培养釜的两项关键技术进行了深入研究。首先研究分析了支撑环结构的接触压力分布,得出了三角形分布更为符合实际接触应力分布的结论。在此基础上,基于准等强度准则的分析设计方法,对支撑环结构进行了优化分析,使筒体各部分应力分布更加合理,安全裕度趋于一致,在保证培养釜安全可靠的情况下,同时也降低了设计制造成本。然后分别以圆形开孔补强结构和长椭圆形开孔补强结构为研究对象,研究了内压圆柱形容器不同开孔方式的应力分布和应力集中问题,得出一些有参考价值的结论,并将之应用于微生物培养釜的开孔结构设计中,取到了较好的应用效果。最后选取单釜平台系统进行了仿真分析,研究了深海极端环境模拟系统集成性能,为展开系统性能进一步的分析研究打下了基础。并完成了深海极端环境模拟系统的集成与调试工作,进一步考察系统的各种性能,完全达到了课题要求。更多还原

【Abstract】 In the 21st century, mankind will enter the ocean economy era. The deep-sea development not only for marine organisms, microbes, marine mineral and other resource development is essential, but also for the Earth’s geological structure and motion studies are necessary. In the deep-sea hydrothermal environment and simulation study of biological activity, the importance of supporting technology is no substitute. Through the development of extreme environment simulation system, important technical bottlenecks in the field of our deep-sea organisms and their genetic resources research & development will be resolved. New parts and components with international advanced level will be developed for deep-sea extreme environmental conditions, such as control valves, sensors, cultivating vessel, on-line inspection devices. Self-development capacity and basic industrial capacity in this area of our country will be promoted. At the same time, the capacity of China’s developing major equipments for extreme environment will be enhanced. Also, from the components development to the systems development, the original innovation will be accumulated.For the design of the cultivating vessel must have the following features: the ability to withstand extreme environments of high temperature (0～400℃) high-voltage (0～60MPa); Operation of convenient, fast turning function; sealed safe and reliable. The thesis has developed two key technologies of cultivating vessel conducted in-depth study with ANSYS finite element analysis.First, the contact pressure distribution of the supporting ring structure was researched and analyzed; triangular distribution of contact stress distribution is more realistic conclusions. On this basis, based on the criteria of equal strength quasi-analysis and design methods, supporting ring structure was optimized, so that all parts of the stress distribution of cylinder is more reasonable and margin of safety are consistent. In ensuring safety and reliability of cultivating vessel, the cost of design and manufacturing was reduced.Then, taking respectively circular opening reinforcement structure and a long oval opening reinforcement structure as the research object to study the cylindrical pressure vessels of different methods of stress distribution and the hole stress concentration problem, drawing some reference value conclusions, and the using in open-cell structure design of microbial cultivation, better application effects was got.Finally, selecting the single reactor system for the simulation platform, in order to expand system performance for further analysis and study, the performance simulation of the deep-sea extreme environments system was analyzed and researched. And the deep-sea extreme environments simulation system integration and commissioning work were completed to examine a variety of system performance, fully meting the requirements of the subject.更多还原