排序方式： 共有24条查询结果，搜索用时 15 毫秒
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为了探索深海,不同类型的深海运载装备得以成功开发,并应用于深海科学、资源勘探开发、工程保障及战略安全等不同领域。深海运载装备可以分为载人潜水器(HOV)、遥控深潜器(ROV)、自治式深潜器(AUV)及混合型深潜器,其中以载人潜水器为代表的高技术装备群成为建设海洋强国的重要保障力量。文章对美国"阿尔文"号、俄罗斯"和平I"号和"和平II"号、日本"深海6500"号、法国"鹦鹉螺"号、中国"蛟龙"号载人潜水器运行管理机制进行了阐述,综合比较其优缺点,提出了建立职业化运行保障队伍、优化作业流程,创新组织结构、探索多型潜水器海上作业模式等运行管理机制构架的建议。 相似文献
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大深度载人潜水器低速大漂角模糊滑模航向控制研究 总被引：1，自引：0，他引：1
通过模型试验测量大深度载人潜水器低速大漂角运动时所受到的非线性水动力。基于一种新的模糊滑模控制策略,为潜水器设计了鲁棒航向控制器。在不同的漂角子区间内分别设计局部镇定的滑模控制器,然后通过Takagi-Sugeno模糊推理系统将它们光滑连接,得到模糊滑模控制。仿真计算结果充分显示了该控制策略的有效性。 相似文献
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陆基保障工作是依托“蛟龙”号载人潜水器(以下简称“蛟龙”号)试验性应用航次开展的一项兼具日常公务办理和应急事件处置的综合事务性工作，主要工作内容包括：跟踪航次动向、保障海陆联通、协调船舶靠港、落实航次宣传以及为“蛟龙”号试验性应用工作领导小组和海上现场指挥部提供技术支撑等。文章回顾了“蛟龙”号试验性应用航次陆基保障工作开展情况，分析了工作特点和存在问题，针对下一步多机构联合和多潜水器协同作业模式下的深远海科考航次特点，提出了陆基保障工作的数字化建设和保密机制建设初步设想。 相似文献
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基于磁力耦合器的载人潜水器电力推进装置研究 总被引：1，自引：0，他引：1
基于磁力耦合传动技术,对载人潜水器电力推进装置进行了系统设计与传动特性研究。采用电磁场有限元方法研究了永磁式磁力耦合器的运行机理和矩角特性,分析了其稳定传动区域和失步条件;分析了螺旋桨的负载特性,采用切比雪夫多项式研究了螺旋桨的四象限全工况动态模型;建立了水下无刷直流推进电机的数学模型和传递函数,设计了推进电机的转速闭环控制系统以抑制转速波动,提高输出推力的平稳度。完成了样机的设计与制造,通过水池试验验证了该推进装置在载人潜水器上的可行性与适用性。 相似文献
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当前关于使用蚁群算法解决载人潜水器路径规划问题的研究,往往只注重路径的长度和算法收敛速度,容易忽略路径点与障碍物之间的距离和路径的平滑度等要素。载人潜水器过于靠近障碍物航行时容易产生碰撞;按照不平滑路径行驶时,频繁地转向会降低航行效率。为解决这些问题,受人工势场法启发,文中在蚁群算法的概率选择环节引入障碍物惩罚因子φ和转向惩罚因子ψ,对路径点的选择加以限制。仿真测试表明,相比于传统蚁群算法和Dijkstra算法,该算法规划的路径与障碍物之间保持安全距离且转向次数更少,因此载人潜水器按照此路径航行时,安全性和航行效率更高。 相似文献
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Mao Fangguan Lu Shunchang Luo Ruiren
Senior Engineer Naval Medical Research Institute P. L. A. of China Shanghai Senior Engineer Navigation Guarantee 《中国海洋工程》1995,(4)
The Diver Gas Recovery Installation (DGRI) was evaluated at 80 msw saturation - 100 msw excursion diving on HeO2 in the Naval Medical Research Institute (NMRI) of China in April, 1995. The diving depth, lockout time, breathing gas flow rate and consumption, inspired oxygen partial pressure (PO2) and carbon dioxide partial pressure (PCO2) were monitored. The results indicated that PO2 was controlled to fluctuate from 64.3 to 84.0 kPa and PCO2 went up from 0.01 kPa up to O.I kPa during 4 hours excursion diving; recovery of breathing gas reached 95%; three divers felt well and breathed comfortably during simulating heavy work. The test showed that it met desired performance goals. The DGRI is a kind of important equipment for long duration deep dive. It enables the gases exhaled by the divers to be re-cycled, and therefore it has great social, military and economic significance for diving operation and submarine rescue. 相似文献
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航天返回舱着陆冲击模拟试验床建造过程控制研究 总被引：2，自引：0，他引：2
应用岩土工程基本方法和手段,按照载人航天返回舱计划着陆地的土质条件,建造了返回舱着陆冲击试验模拟试验床,建造过程严格控制材料质量、施工技术参数和施工方法,采用轻型动力触探试验、测试土层含水量和干密度、小直径载荷板试验等主要现场测试方法,及时评价试验床的质量状况,实现了信息化控制施工,保证了模拟试验床的建造质量,对我国国防科技领域的试验研究具有重要意义。 相似文献
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There has traditionally been a dichotomy in the space community regarding the efficacy of human versus robotic exploration
of space. I argue that no such dichotomy is necessary, and that there is a natural and synergistic division of labour between
man and machine, and that this division of labour will evolve in symbiotic fashion. The present state-of-the-art robotics
technology is insufficient to replace the human in space, but is sufficient to act as a useful, even necessary, tool in aiding
the astronaut in the conduct of useful work. I further argue that as robotics technology advances, the human will be further
relieved to perform tasks best suited to human decision-making and flexibility that is unlikely in the near-term to be matched
by autonomous or teleoperated machines.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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Human space flight represents a heady mix of bravery and drama which can be inspirational to nations and to humankind but
at huge economic cost. Due to the current high launch costs only a handful of people have ventured beyond low Earth orbit
and walked on the Moon, propelled by aspirations related more to the Cold War than to science. Problems with reusable launch
vehicle development mean that severe launch cost limitations will exist for some time. Meanwhile, cheaper robotic probes have
visited all the planets except Pluto, flown by comets, landed on Mars, Venus and an asteroid, have probed Jupiter's atmosphere
and studied the Universe beyond our own solar system with telescopes. Using these data we are determining mankind's place
in the Universe. Public interest in the historic Eros landing eclipsed a simultaneous space walk at the fledgling International
Space Station and the Mars Pathfinder landing generated hundreds of millions of website hits in a few days. Given the fact
that hundreds of Mars missions could be flown for the still-escalating cost of the International Space Station, the unsuitability
of human bodies for deep space exploration, and the advances in 3-d and virtual reality techniques, we discuss whether human
exploration needs a place in a realistic, useful and inspirational space programme.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献