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[规范类] LR DP Notation

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发表于 2011-2-8 14:46 | 显示全部楼层 |阅读模式 来自: 中国天津
DP(AM) automatic main and manual standby control for postion
DP(AA)  automatic main and automatic standby control for postion
这两个dp相当于我们常说的DP几?
请指点,谢谢
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龙船学院
发表于 2011-2-8 16:02 | 显示全部楼层 来自: 英国
The following class notations are associated with dynamic positioning arrangements, and may be assigned as considered appropriate by the Classification Committee:

DP(CM) This notation may be assigned when a ship is fitted with centralised remote manual controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.

DP(AM) This notation may be assigned when a ship is fitted with automatic main and manual standby controls for position keeping and with postition reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.

DP(AA) This notation may be assigned when a ship is fitted with automatic main and automatic standby controls for position keeping and with position reference system(s) and environmental sensor(s). It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.

DP(AAA) This notation may be assigned when a ship is fitted with automatic main and automatic standby controls for position keeping, together with an additional/emergency automatic control unit located in a separate compartment and with position reference systems and environmental sensors. It denotes that the machinery and control engineering equipment has been arranged, installed and tested in accordance with LR’s Rules, or is equivalent thereto.

The foregoing dynamic positioning notations may be supplemented with a Performance Capability Rating (PCR). This rating indicates the calculated percentage of time that a ship is capable of holding heading and position under a standard set of environmental conditions (North Sea)
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发表于 2011-2-8 16:10 | 显示全部楼层 来自: 英国
Section 6 Performance Capability Rating (PCR)
6.1 Requirements
6.1.1. Where the DP notation is to be supplemented with a Performance Capability Rating (PCR) (see 1.2.2), the calculation will be carried out using the information specified in 1.3.7.

6.1.2. Two rating numerals are calculated:

(a). The first numeral represents the percentage of time that the ship can remain on station when subjected to a set of standard environmental conditions (North Sea fully developed) with all thrusters operating.

(b). The second numeral represents the percentage of time that the ship can remain on station when subjected to a set of standard environmental conditions (North Sea fully developed) with the most effective thruster being inoperative.

A typical rating might be (95), (70).

6.1.3. In calculating the PCR, the following parameters are considered:

(a). Thruster force vectors.

(b). Thruster/thruster, thruster/hull and thruster/current interactions.

(c). Sea current loads on the ship.

(d). Wind force on the ship.

(e). Wave drift force on the ship.

6.1.4. Where the ship has been subject to alteration or addition, which may affect the performance characteristics of the DP system, the PCR is to be recalculated.
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发表于 2011-2-8 20:05 | 显示全部楼层 来自: 中国山东青岛
哥们。。你不是复制的吧?
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发表于 2011-2-10 17:51 | 显示全部楼层 来自: 中国安徽合肥
很 明显
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发表于 2011-2-11 00:53 | 显示全部楼层 来自: 中国安徽芜湖
DP(CM)  对装有定位用的手动集中遥控装置、位置参考系统及环境探测器的船舶可授予此标志。此标志表示机器及控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。

DP(AM)  对装有定位用之自动控制装置和手动备用控制装置、位置参考系统及环境探测器的船舶可授予此标志。此标志表示机械和控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。

DP(AA)  对装有定位用之自动控制装置和自动备用控制装置、位置参考系统和环境探测器的船舶可授予此标志。此标志表示机械和控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。

DP(AAA)  若装有定位用的自动控制装置和自动备用控制装置,以及一个装在独立舱室内的附加/应急自动控制单元、位置参考系统、环境探测器的船舶可授予此标志
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发表于 2012-1-20 22:37 | 显示全部楼层 来自: 中国江苏苏州
DP(CM)  对装有定位用的手动集中遥控装置、位置参考系统及环境探测器的船舶可授予此标志。此标志表示机器及控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。
DP-0
DP(AM)  对装有定位用之自动控制装置和手动备用控制装置、位置参考系统及环境探测器的船舶可授予此标志。此标志表示机械和控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。
DP-1
DP(AA)  对装有定位用之自动控制装置和自动备用控制装置、位置参考系统和环境探测器的船舶可授予此标志。此标志表示机械和控制工程设备系按英国劳氏船级社规范或与其等效的规定进行布置、安装和试验者。
DP-2
DP(AAA)  若装有定位用的自动控制装置和自动备用控制装置,以及一个装在独立舱室内的附加/应急自动控制单元、位置参考系统、环境探测器的船舶可授予此标志
DP-3
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