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Analysis of speedability and power system configuration of 100 000 ton aquaculture platform

  

  1. (1 Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences; Key Laboratory of Ocean Fishing Vessel and Equipment, Ministry of Agriculture and Rural Affairs, Shanghai 200092, China;
    2  Joint Research Laboratory for Deep Blue Fishery Engineering Equipment Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China)
  • Online:2020-09-16 Published:2020-04-20

10万吨级养殖工船快速性及动力系统配置分析

  

  1. （1中国水产科学研究院渔业机械仪器研究所，农业农村部远洋渔船与装备重点实验室，上海 200092；
    2青岛海洋科学与技术国家实验室深蓝渔业工程联合实验室，山东 青岛 266237）
  • 作者简介:崔铭超（1983—），男，硕士，工程师，研究方向：深远海养殖工船总体设计。E-mail：cuimingchao@126.com
  • 基金资助:
    山东省支持青岛海洋科学与技术试点国家实验室重大科技专项（2018SDKJ0303-3）

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Abstract:  In view of the specific operational needs of the aquaculture platform, it is of great significance to explore a convenient research method of speedability and develop an economical and efficient power system to reduce the cost of aquaculture, improve the safety of aquaculture and promote the development of industry. The accuracy of CFD hydrostatic resistance calculation is verified by model test comparison, the multi-objective optimization of speedability is carried out based on the CFD technology to obtain the ideal hull low resistance profile, and the reasonable configuration of the power system of aquaculture platform is analyzed from the perspective of power demand, initial construction cost and failure comparison of power system to acquire the power system foundation scheme. The results show that in the case of 9-11 kn and lower Fourier number, the hydrostatic resistance is not obviously reduced by optimizing the line. After the degree of non-uniformity of wake decreases to a certain extent, it will be greatly increased if the resistance is further reduced, which is not conducive to the improvement of the overall speedability. Combined with the actual use demand of mooring condition, the electric propulsion technology is adopted. It can effectively reduce the initial construction investment, reduce the later maintenance and operation costs, and improve the reliability of the power system in the operating condition. According to the configuration requirements of the power system of the aquaculture operation, it is an effective method to study this kind of problem by deducing the speedability of the aquaculture platform.

Key words:  aquaculture platform, model test, Computational Fluid Dynamics, speedability, electric propulsion

摘要： 针对养殖工船特定作业需求，探索一种便捷的船舶快速性研究方法，研发经济高效的动力系统，对降低养殖成本、提高养殖安全、推动产业发展具有重要意义。通过模型试验对比验证计算流体力学（CFD）叠模法静水阻力计算的准确性；基于叠模法对船体快速性进行多目标优化，获取理想的船体低阻力型线；从养殖工船功率需求、初始建造成本及动力系统故障失效对比角度，分析养殖工船动力系统的合理配置，获取动力系统基础方案。结果显示，在9~11 kn及低傅氏数情况下，通过优化线型而降低静水阻力不明显；在伴流不均匀度下降到一定程度以后，继续降低阻力会大幅提升，不利于整体快速性能的提高；结合系泊养殖实际使用需求，采用电力推进技术可有效减少初始建造投资、降低后期维护及运营成本，提高养殖工况动力系统可靠性。根据养殖作业动力系统配置需求，反推养殖工船的快速性特征是研究该类问题行之有效的方法。

关键词: 养殖工船, 模型试验, 计算流体力学, 船舶快速性, 电力推进