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MARINE TECHNOLOGY

机译：海洋技术

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摘要

Seawater piston pump is a key power component for underwater equipment. Low pressure pulsation and vibration have become the key requirements of high quality seawater piston pump in the interest of improving the stability, reliability and stealth of underwater equipment. A new type crankshaft seawater piston pump was studied in this paper. The kinematics of the pistons was analyzed and a simulation model was established. The simulation results indicated that its pressure pulsation rate was as high as 17%. Fortunately, after integrating accumulators and optimizing the precharge pressures, the pressure pulsation rate can be reduced below 5% in the working range. The pump possessed better performance when the accumulators were precharged with optimized multiple pressures than with a single pressure. In addition, experimental analysis was conducted through measuring the pressure pulsation and vibration acceleration under different conditions. The experiment results of the pressure pulsation well agreed with the simulation results. Besides, the vibration acceleration of the seawater piston pump was obviously reduced in wide working range when the accumulators were precharged with the optimized combination multiple parameters. In conclusion, integrating accumulators into pump and optimizing the precharge parameters can reduce the pressure pulsation and vibration acceleration in the working range.
机译：海水活塞泵是水下设备的关键动力组件。为了提高水下设备的稳定性，可靠性和隐身性，低压脉动和振动已成为高质量海水活塞泵的关键要求。本文研究了一种新型曲轴海水活塞泵。分析了活塞的运动学，并建立了仿真模型。仿真结果表明，其压力脉动率高达17％。幸运的是，在集成了蓄能器并优化了预充压力之后，可以将工作范围内的压力脉动率降低到5％以下。当蓄能器以优化的多种压力预充气时，其泵的性能要优于单一压力。另外，通过测量不同条件下的压力脉动和振动加速度进行了实验分析。压力脉动的实验结果与仿真结果吻合良好。此外，在蓄能器预充优化组合多个参数后，在宽工作范围内，海水活塞泵的振动加速度明显降低。总之，将蓄能器集成到泵中并优化预充参数可以减少工作范围内的压力脉动和振动加速度。

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    《Oceanographic Literature Review》 |2019年第2期|429-440|共12页
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