水下航行器闭式循环动力系统动态仿真

白 杰; 党建军; 罗 凯; 李代金

doi:10.11993/j.issn.1673-1948.2016.06.008

水下航行器闭式循环动力系统动态仿真

doi: 10.11993/j.issn.1673-1948.2016.06.008

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金资助(51409215)

详细信息

作者简介:
白杰(1985-), 男, 在读博士, 主要研究方向为水下航行器动力技术.

中图分类号: TJ630.32; TB115
计量
- 文章访问数: 1191
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- 被引次数: 0
出版历程
- 收稿日期: 2016-07-22
- 修回日期: 2016-08-25
- 刊出日期: 2016-12-20

Dynamic Simulation of Closed Cycle Power System for UUV

School of Marine Science and Technology, Northwestern Polytechnical University, Xi′an 710072, China

摘要

摘要: 为研制高能量密度无人水下航行器(UUV)动力系统, 对以Li/SF6为热源的闭式循环动力系统开展研究。基于质量守恒和能量守恒方程, 将蒸发器及冷凝器进行分区, 建立了移动边界数学模型, 建立了涡轮机的稳态模型以及集液器的动态模型, 形成了系统的动态模型。通过仿真计算, 获得了系统工质流量阶跃变化条件下的动态响应。仿真结果表明, 蒸发器进口水流量增加时, 管内压力升高, 出口温度降低, 涡轮机输出功率增大, 蒸发器及冷凝器各相区长度改变; 当其流量减小时, 变化规律相反。所建模型可为UUV动力系统设计及控制方案选择提供参考。
- 无人水下航行器(UUV) /
- 闭式循环动力系统 /
- 涡轮机 /
- 动态模型 /
- 移动边界法
Abstract: The closed cycle power system based on Li/SF6 heat pipe reactor is investigated for the purpose of designing high energy density power system of unmanned underwater vehicle(UUV). The moving boundary models of an evaporator and a condenser are established based on mass conservation and energy conservation equations with dividing their heat exchangers into different areas. The steady state model of a turbine and the dynamic model of a liquid trap are established. And the dynamic model of the whole system is built. With step change of the inlet water flow rate of the evaporator, the dynamic characteristics of the key components of the system are obtained by simulation. The results show that with the increase in the inlet water flow rate, the pressure in the tube rises up, the temperature at evaporator outlet decreases, the turbine power output gets higher, and the phase zone lengths of the evaporator and condenser change. When the flow rate decreases, the above behaviors change on the contrary. These models may be applicable to design of UUV power system and its control strategy.
- unmanned underwater vehicle(UUV) /
- closed cycle power system /
- turbine /
- dynamic model /
- moving boundary method

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参考文献(13)

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