SOME MODEL EXPERIMENTS AND SHIP CORRELATION IN RESPECT TO MANOEUVRABILITY
SOME MODEL EXPERIMENTS AND SHIP CORRELATION IN RESPECT TO MANOEUVRABILITY
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一些模型实验和船舶在操纵性方面的相关性
DOI：
10.2534/jjasnaoe1952.1963.58
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发表时间：
1969
期刊：
影响因子：
--
通讯作者：
S. Yasui
中科院分区：
文献类型：
--
作者：
K. Kawano;Y. Murata;Fumika Matsuoka;S. Yasui
本文涉及到一些模型试验和船舶相关的灵敏性,坦克在大阪大学合作进行的川崎重工船厂Co .)和佐世保重工业有限公司标准的曲折的测试进行了13000 DW货物班轮和她的模型在不同的负载条件下,虽然类似的测试以及将螺旋测试完成130000 DW超级油轮和她在满载条件下的模型。相关研究表明，与实际船舶相比，模型船舶的航向稳定性和对舵的响应速度要快得多，但在轻微舵的情况下，模型船舶的转向能力要弱得多。模型与船舶之间的差异随着转向运动强度的增大而减小，因此两者在hard - dover helm的转向直径上没有显著差异。总而言之，在航向稳定性上存在相当大的模型分歧，但在转弯性能上没有分歧。似乎这种差异在很大程度上与螺旋桨竞赛强度的差异有关，通过方向舵效能和可能的螺旋桨鳍效应。这种差异很大程度上是由于自由运行模型缺乏摩擦校正。
The present paper relates to some model experiments and ship correlation in respect to manoeuvrability, carried out at the Osaka University Tank under co-operation of Kawasaki Dockyard Co. and Sasebo Heavy Industries Co. The standard zig-zag tests were carried out for a 13,000 DW cargo liner and her model at various load conditions, while the similar tests as well as turning and spiral tests were done for a 130,000 DW super tanker and her model at full load condition. The correlative studies shows that model ships are much more stable on course, much quicker in response to helm and have less turning ability for slight helm, compared with actual ships. The difference between models and ships, however, decreases with increase of the intensity of turning motion so that there is no significant discrepancy between the two in respect to turning diameter for hardover helm. In a word, there is a considerable modelship disagreement upon stability on course, but not upon turning performance at hardover. It should seem that this discrepancy relates largely to difference in propeller race intensity through rudder effectiveness and possibly propeller fin effect. The difference results largely from the lack of friction correction for free-running models.