摘要
碟簧液压机构作为电力系统中的关键设备,其性能直接影响系统的可靠性。分析碟簧液压机构关键部件的动态特性旨在提升该设备稳定性。首先分析了碟簧液压机构的结构组成及工作原理,然后通过Fluent对碟簧液压机构工作缸活塞的无杆腔与有杆腔压力变化特性进行仿真分析,揭示了活塞运动速度与压力波动之间的关系。针对灭弧室在分闸过程中的气体压力变化展开仿真研究,深入探讨了压气室内气体的动态特征,并通过压力云图分析了碟簧液压机构及灭弧室内的压力分布规律。最后,通过试验验证了动态特性分析的准确性,为优化机构设计、提高运行稳定性奠定了理论基础。
The disc spring hydraulic mechanism is a key equipment in the power system,and its performance directly impacts the reliability of the system.Dynamic characteristic analysis of its key components aims to enhance operational stability.The mechanism's structural composition and operational principles are analysed firstly.Subsequently,Fluent-based simulations investigate the pressure variation characteristics in both rodless and rod cavities of the working cylinder piston.These simulations reveal the intrinsic correlation between piston velocity and pressure fluctuations.Further research focuses on gas pressure dynamics in the arc-extinguishing chamber during circuit-breaking operations,employing pressure cloud diagrams to analyse the spatial-temporal pressure distribution patterns in both the disc spring hydraulic mechanism and the arc-extinguishing chamber.Experimental validation confirms the accuracy of this dynamic analyses,establishes a theoretical foundation for optimizing mechanism design and improving operational stability.
作者
李铁
张全民
熊岿然
杨秋蓉
黄伟迪
LI Tie;ZHANG Quanmin;XIONG Kuiran;YANG Qiurong;HUANG Weidi(Henan Pinggao Electric Co.,Ltd.,Pingdingshan,Henan 467000;State Key Laboratory of Fluid Power&Mechatronic Systems,Zhejiang University,Hangzhou,Zhejiang 310027)
出处
《液压与气动》
北大核心
2025年第8期79-88,共10页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金联合基金项目(U21A20124)
航空科学基金(20230007076002)。
关键词
碟簧液压机构
灭弧室
Fluent仿真
动网格
动态特性分析
disc spring hydraulic mechanism
arc-extinguishing chamber
fluent simulation
dynamic mesh
dynamic characteristic analysis
