水下发射循环管路系统水动力性能的仿真分析与验证  

Simulation analysis and verification of hydrodynamic performance of underwater launch cycle pipeline system

作　　者：黄垂兵 许金[1] 杨琼方[1] 张晓平 郑欣良[1] HUANG Chui-bing;XU Jin;YANG Qiong-fang;ZHANG Xiao-ping;ZHENG Xin-liang(National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval Univ. of Engineering, Wuhan 430033, China)

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430033

出　　处：《海军工程大学学报》2019年第2期26-31,43,共7页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51477178)

摘　　要：为了控制闭式循环管路系统内高压水的脉动规律、降低水下发射系统的瞬态发射噪声,需对水动力进行准确的建模和分析。首先,模型中引入了活塞运动加速度项,采用一维解析方法建立了管路系统的水动力模型;然后,运用该模型分别对活塞运动低、中、高三种不同速度工况进行了仿真计算分析,得到了发射过程中不同特征测点处流体脉动压力曲线,并与假海试验平台原型样机模拟发射实验的测量结果进行了对比,结果表明二者吻合较好,由此验证了水动力模型的正确性与通用性。In order to control the pulsation of high pressure water in closed-loop pipeline system and reduce the transient emission noise of underwater launching system, it is necessary to accurately mo- del and analyze the hydrodynamic force. The hydrodynamic model of pipeline system is established by one-dimensional analytical method and the acceleration term of piston motion is introduced in the hydrodynamic model. Then, the flow loss coefficient in pipeline system is obtained by three-dimensional computational fluid dynamics (CFD) numerical calculation, and the model correction coefficient sui- table for transient flow in launch system is obtained. The model is used to simulate and analyze the piston motion at low, medium and high speeds. Fluid fluctuating pressure curves at different characteristic points in the launching process are obtained, which are in good agreement with the measured results of the simulated launching experiment of the prototype of the false sea test platform. The correctness and universality of the hydrodynamic model are verified.

关 键 词：水下发射 瞬态噪声 水动力 系统建模 试验验证 

分 类 号：TM359[电气工程—电机]