| 淹没式喷嘴反推力测量及其系柱试验装置设计 |
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| 引用本文： | 宁大勇,丛宇佳,张增猛,侯交义,弓永军.淹没式喷嘴反推力测量及其系柱试验装置设计[J].液压与气动,2019,0(4):20-23. |
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| 作者姓名： | 宁大勇 丛宇佳 张增猛 侯交义 弓永军 |
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| 作者单位： | 大连海事大学船舶与海洋工程学院， 辽宁大连116026 |
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| 基金项目： | 国家自然科学基金（51475064）；辽宁省高等学校优秀人才支持计划（LJQ2015012） |
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| 摘 要： | 喷水推进具有噪声低、空泡性能好、易于矢量调节等优点,已成为水下机器人(ROV)推进技术的研究热点。喷水推进依靠喷嘴将泵产生的压力能转化为高压水动能,产生的反推力是压力和黏性阻力作用在高压腔以及喷嘴上的综合效果,该反推力的大小是推进性能研究的重点。对几种不同形状和参数的喷嘴反推力进行仿真和试验对比。采用Fluent软件对喷嘴进行流场内部仿真,并且通过后处理文件计算出喷嘴的反推力大小。现有测量喷嘴反推力的相关试验装置与实际工况存在较大差异,根据螺旋桨系柱推力试验方法,提出并设计一种新的喷嘴反推力测试装置。该试验装置动力由岸基高压海水泵源供给,通过溢流阀调节喷嘴入口压力,喷嘴固定在ROV框架上,利用拉力传感器测量ROV框架在喷嘴射流驱动下的系柱拖力,进而得到喷嘴射流反推力与输入压力的关系。该试验装置为在水淹没条件下研究喷水推进系统提供了试验条件。
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| 关 键 词： | ROV 喷嘴 反推力 系柱试验 |
| 收稿时间： | 2018-08-31 |
Reaction Thrust Measurement of Submerged Nozzle and Design of Mooring Test Device |
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| NING Da-yong,CONG Yu-jia,ZHANG Zeng-meng,HOU Jiao-yi,GONG Yong-jun.Reaction Thrust Measurement of Submerged Nozzle and Design of Mooring Test Device[J].Chinese Hydraulics & Pneumatics,2019,0(4):20-23. |
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| Authors: | NING Da-yong CONG Yu-jia ZHANG Zeng-meng HOU Jiao-yi GONG Yong-jun |
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| Affiliation: | College of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, Liaoning116026 |
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| Abstract: | Water jet propulsion has the advantages of low noise, good cavitation performance and easy vector adjustment. It has become a hot topic in the research of remote operated vehicle (ROV) propulsion technology. Water jet propulsion relies on a nozzle to transform pressure generated by a pump to high pressure water kinetic energy. The reaction thrust produced is the comprehensive effect of pressure and viscous resistance acting on high-pressure chamber and nozzle. The magnitude of reaction thrust is the focus of propulsion performance research. We simulate and compare several reaction thrusts with different shapes and parameters. The software Fluent is used to simulate the internal flow field of nozzle, and the reaction thrust of nozzle is calculated by a post processing file. An existing test device for measuring the thrust of nozzle is quite different from the actual working condition. According to a propeller mooring thrust test method, a new test device for the reaction thrust of nozzle is put forward and designed. The test device is powered by a shore based high-pressure seawater pump, and the entrance pressure is adjusted by a regulating valve. The nozzle is fixed on a ROV framework, and we measure the drag force of a ROV frame driven by a nozzle jet by a tension sensor, and then get the relationship between reaction thrust and input pressure. The test equipment provides experimental conditions for the study of water jet propulsion system under water submergence. |
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| Keywords: | ROV nozzle reaction thrust mooring test |
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