旋转惯性液压变换器的能效特性  

Energy-efficiency characteristic investigation of rotational inertia hydraulic converter

作　　者：陈晓明[1] 朱玉川[1,2] 凌杰 郑述峰 王玉文 CHEN Xiaoming;ZHU Yuchuan;LING Jie;ZHENG Shufeng;WANG Yuwen(National key Laboratory of Science and Technology on Helicopter Transmission,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Wuxi Research Institute,Nanjing University of Aeronautics and Astronautics,Wuxi 214000,China)

机构地区：[1]南京航空航天大学直升机传动技术重点实验室,南京210016 [2]南京航空航天大学无锡研究院,无锡214000

出　　处：《北京航空航天大学学报》2023年第8期1982-1990,共9页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51975275);江苏省重点研发计划(BE2021034);南京航空航天大学直升机传动技术重点实验室自主课题(HTLA-20G02)。

摘　　要：为探究旋转惯性液压变换器(RIHC)的主要性能及其能量转化机制,针对由等效两位三通快速切换阀驱动的旋转惯性液压变换器构型建立其理论分析模型。通过与传统比例液压系统(CHPS)对比实验,验证所建理论模型并给出两者能效差异。结果表明:所建理论模型可有效预测RIHC的主要性能,可通过系统吸油流量量化旋转惯性效应的大小,稳态吸油流量在有效占空比0.5时达到峰值。脉宽调制信号有效占空比控制模式下,随着飞轮转速、负载压力的增加,测得阀口节流损失与系统效率线性化增加。实验表明:负载压力在0~4 MPa范围内,RIHC相较于CHPS最高可减少89%的阀口节流损失,系统效率提升15.7%。To explore the main characteristics and energy conversion mechanism of rotational inertia hydraulic converter(RIHC).Using a rotating inertia hydraulic converter configuration powered by an analogous rapid switching valve,the overall theoretical model was developed to investigate the key features and energy conversion mechanism of the device.The results indicated that the main characteristics can be basically predicted by the theoretical model,and the rotational inertia can be effectively quantified by the suction flow rate,whose mean value reach to the peak value at the duty cycle of 0.5.In the effective duty cycle control mode of PWM signal,with the growth of the flywheel rotation speed and load pressure,the positively correlated throttling power loss and system efficiency are acquired.When the load pressure is between 0 and 4 MPa,experimental comparison showed that the RIHC may reduce throttling power loss by up to 89%and achieve an increase in system efficiency of 15.7%while compared to CPHS.

关 键 词：旋转惯性液压变换器 传统比例液压系统 吸油流量 负载压力 节流损失 

分 类 号：TH137[机械工程—机械制造及自动化]