液压型海上漂浮风力机长管道特性研究  

Study on the Characteristics of Long Transmission Pipeline of Hydraulic Offshore Wind Turbines

作　　者：马涛 郭冬青 MA Tao;GUO Dongqing(School of Mechanical Engineering, Henan University of Engineering, Zhengzhou Henan 451191,China)

机构地区：[1]河南工程学院机械工程学院,河南郑州451191

出　　处：《机床与液压》2021年第19期43-47,52,共6页Machine Tool & Hydraulics

基　　金：河南省自然科学基金项目(182300410245)。

摘　　要：针对液压型海上漂浮风力机能量传输系统的特点,基于线性摩擦分布管路模型,建立具有恒定管径的大直径流体传输分布式管道数学方程,研究系统输入和管道参数对系统特性的影响。叶轮转矩和变量泵斜盘角与管道入口压力的幅值比有相同的谐振点频率,但斜盘角的变化对入口压力的影响明显高于叶轮转矩;管道内径越大,压力幅值比越大,尤其在低频段更明显;管道越长,谐振点越多,工作频带越窄,在第一次达到最大谐振幅值后,其谐振幅值随着频率增加逐渐减小。According to the characteristics of the energy transmission system of hydraulic offshore wind turbine,based on the linear friction distribution pipeline model,the mathematical equation of the large diameter fluid transmission distributed pipeline with constant diameter was established.The effects of the system input and pipeline parameters on system characteristics were studied.The amplitude ratios of the impeller torque and swash plate angle of variable pump to pipe inlet pressure have the same resonant point frequency,but the influence of the change of the swash plate angle on the inlet pressure is significantly higher than the impeller torque.The larger the inner diameter of the pipe is,the greater the pressure amplitude ratio is,especially in the low frequency range.The longer the pipeline is,the more the resonance point number is,the narrower the operating frequency band is.After the maximum resonance amplitude is reached for the first time,its resonance amplitude gradually decreases with the increasing frequency.

关 键 词：长管道 压力比 线性摩擦 漂浮风力机 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]