⑴ 求船舶专业英语翻译
你好!
1. Direct search approach
Solutions are generated by varying parameters either systematically in
certain steps or randomly. The best of these solutions is then taken as the
estimated optimum. Systematic variation soon becomes prohibitively time
consuming as the number of varied variables increases. Random searches
are then employed, but these are still inefficient for problems with many
design variables.
1。直接搜索方法的
解决方案是通过改变参数,无论是系统中的
某些步骤或随机生成的。这些最好的解决方案,然后采取作为
估计的最优解。系统性变化很快变得望而却步时间
消耗的多样化的变量的数目增加。
然后采用随机搜索,但这些仍与许多
设计变量的问题。
2. Steepness approach
The solutions are generated using some information on the local steepness
(in various directions) of the function to be optimized. When the steepness
in all directions is (nearly) zero, the estimate for the optimum is found.
This approach is more efficient in many cases. However, if several local
optima exist, the method will 'get stuck' at the nearest local optimum
instead of finding the global optimum, i.e. the best of all possible solutions.
Discontinuities (steps) are problematic; even functions that vary steeply in
one direction, but very little in another direction make this approach slow
and often unreliable.
2 低效。陡度的方法
使用当地的陡度
(各个方向)的一些信息的功能进行优化的解决方案。
在所有方向上的陡度(几乎)为零,估计为最佳。
在许多情况下,这种方法是有效的。但是,如果几个局部
最优解存在,该方法将“卡住”
,而不是寻找全局最优解,在最近的局部最优,即所有可能的解决方案是最好的。
不连续(步骤)是有问题的,即使在
一个方向急剧变化的功能,,但很少在另一个方向,这种方法速度慢
,往往是不可靠的。
Most optimization methods in ship design are based on steepness approaches
because they are so efficient for smooth functions. As an example consider
the cost function varied over length L and block coefficient CB (Fig. 3.1).
A steepness approach method will find quickly the lowest point on the cost
function, if the function K = f(CB, L) has only one minimum. This is often
the case.
在船舶设计中的最优化方法的基础上陡度的方法,
因为他们是如此有效的平滑功能。作为一个例子考虑
成本函数的变化,长度L和方形系数CB(图3.1)。
陡度的方式方法,快速找到最低点的成本
函数,如果函数K = F(CB,L)只有一个最低限度。这是通常
的情况。
希望对你有帮助!
⑵ 帮忙翻译一下吧,有关船舶知识的英语
一,政府法治的安全管理委员会
“安全管理委员会” ( “委员会” )应设立
在该公司,以控制“的安全管理制度” (
“制度” )有效。
指定人士,应主席的“委员会” 。
1.1责任“委员会”
“委员会”调查,并讨论了以下事项协商xxxxxxx与“制度” 。
( 1 )审查和评价“系统”
( 2 )分析报告有关不符合,一宗交通意外或1
危险的发生,然后建立措施,以改善他们的
( 3 )的调查结果或事项指出,该内部安全审核,并
他们的纠正行动
( 4 )其他有关的事项“系统”
⑶ 急求船舶专业英语翻译
International Carriage of Goods by Sea refers to the use of ships at sea through the channel in different countries and regions in the transportation of goods between the port modes of transport. International Carriage of Goods by Sea is characterized by large transport. The international carriage of goods in the world for the exchange of goods, geographical location and the decision of the International Carriage of Goods by Sea is the main means of transport of goods. The total international trade volume of more than 75% of the use of sea transport to complete, and some of the country's foreign trade volume accounted for sea transport of more than 90%. Since the shipment type, nature, different packaging, transport and custody of their way higher, the distribution of the ship, the stowage requirements of more complex
⑷ 船舶专业英语翻译
船舶: Vessel
⑸ 船舶英语求教
CLASSIFICATION ABS O A1 E(船号),散装货船,BC-A(货舱号为2、4、6的货舱可能为空舱,4号货舱为压舱物),客户服务代表,安全船运-指令舱,封装安全载荷,抓斗载重(20吨),UWILD,*AMS,ACCU,TCM(入级符号)
⑹ 船舶英语单词解释
hull structure 船体结构
hull drafting 船体制图
statics of the ship 船舶静力学
structural mechanics of the ship 船舶结构力学
maneuver and swing of the ship 船舶操纵与摇摆
ship rapidity & theoretical mechanics 船舶快速性和理论力学
mechanics of materials 材料力学
hydromechanics 流体力学
船厂专业翻译,保证准确可靠。
⑺ 船舶专业英语
轴向力axial force
径向力radial force
切向力cutting force
齿轮节圆直径pitch diameter of gear(大large,小small)
法面啮合角normal plane engage angle
滑动轴瓦长度the length of shaft bushing
齿轮箱热膨胀补偿 the thermal expansion compensation(reservation)of gear box
滑动轴承瓦开口转角the corner of the bushing opening
设计水线面系数the index of design waterline
浮心距舯the distance between the middle and buoyant center
设计尺寸design dimensions
舭龙首的尺度the fore length of bilge keel
设计吃水排水量design tonnage
设计吃水方形系数:
螺旋桨限制直径(m):the limitation of propeller diameter
桨轴距基线高度(m):the distance between main shaft and baseline
船体阻力曲线表
推力减额系数
伴流系数
相对旋转效率
螺旋桨旋转中心距舯m the distance between propeller center and ship middle
螺旋桨旋转中心距基线m the distance between propeller center and baseline
齿轮箱输出法兰距舯m the distance between output flange of gear box and ship middle
齿轮箱输出法兰距基线m the distance between output flange of gearbox and baseline
有船模试验数据的提供有效马力曲线
轴系校中、回旋计算所需资料
齿轮箱大齿轮轴结构图the structure chart of large gear
大齿轮重量the weight of large gear
轴承型式及允许比压
齿轮箱工作温度the working temperature of gear box
齿轮箱输出轴中心距安装平面高度the height from output shaft center of gearbox to the mounting seat surface
⑻ 船舶专业 英语
现在来说 前景还是不错的 虽然现在经济危机时期!
英语在船舶设计建造中非常有用,现在我国基本都是造出口船,设计、现场都需要英语!
工作最好的路子:船厂干3年 1年在车间 2年在检验科 然后跳槽做船东或者船检。船东船检的工资打底是20w+ 的 属于不错的行业!