排序方式: 共有29条查询结果,搜索用时 31 毫秒
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天津港防波堤延伸工程口门方案研究 总被引:3,自引:2,他引:1
根据发展的需要,天津港拟在原25万t航道北侧增加一条10万t级航道。由于航道宽度增加,设计口门宽度由900 m增加到1550 m,在现场实测资料分析的基础上,利用潮流、泥沙数学模型对口门拓宽后口门附近流场以及航道淤积情况进行了研究,建立波浪数学模型,对南疆码头附近泊稳以及波峰面高程进行了研究,主要结论是与原900 m时相比,口门拓宽后口门附近流态基本没有发生变化,航道淤强略有增加,但幅度不大,而口门拓宽后30万t油码头处波高有所增大,不能满足设计要求,将北防波堤向海延伸500 m后,30万t油码头处波高可以满足设计要求。 相似文献
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The design of underwater hull-cleaning robot 总被引:2,自引:0,他引:2
YUANFu-cai GUOLi-bin MENGQing-xin LIUFu-qiang 《船舶与海洋工程学报》2004,3(1):41-45
The research on underwater ship-hull cleaning robot was conducted on the purpose of realizing the automation of cleaning underwater ship hull so that service life of ship will be prolonged and ship speed will raised. Moreover, fuel consumption and the work intensity of divers will be reduced. In this paper, the current situation and the latest technology in China and abroad were analyzed; meanwhile, the typical characteristics of the underwater cleaning robot were introduced. According to the work principle of the underwater cleaning robot, the emphasis was put on the analysis and study of permanent-magnetic absorption, magnetic wheel, airproof and anticorrosion, underwater cleaning equipment and control system. The robot is easy in rotation and simple in control. 相似文献
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我国钢结构住宅发展前景展望 总被引:5,自引:0,他引:5
主要介绍了国内钢结构住宅的发展和应用现状,通过对钢结构住宅特点的分析,探讨了钢结构住宅发展的前景和方向。 相似文献
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Motor Driving Leg Design for Bionic Crab-like Robot 总被引:2,自引:0,他引:2
Wang Li-quan Qu Xiao-rong Meng Qing-xin Yuan Peng Wang Mo-nanCollege of Mechanical Electrical Engineering Harbin Engineering University Harbin China 《船舶与海洋工程学报》2002,1(2):72-77
The paper presents the design of walking leg for bionics crab-like robot, which is driven with micro servo motor. The kinematic characteristics of the bionics machine are analysed for optimized structure parameters, which has been used in the robot design. A three closed loop motor control system structure for joint driver is also given, as well as the multi-joint driving system for walking robot leg. 相似文献