本文選題：雙閥芯　切入點(diǎn)：電液比例多路閥　出處：《中國機(jī)械工程》2017年10期 　論文類型：期刊論文

【摘要】：以某系列雙閥芯電液比例多路閥為研究對象,采用CFD流場仿真技術(shù)和PIV可視化測速技術(shù)對不同閥口開度和流量下的主閥沿進(jìn)口流道、節(jié)流口、閥腔的流場進(jìn)行了流體仿真和試驗(yàn)可視化研究。應(yīng)用Fluent軟件仿真研究了主閥進(jìn)口節(jié)流流場分布并得出閥口壓降特性;采用PIV試驗(yàn)研究的手段對流場分析結(jié)果加以驗(yàn)證,應(yīng)用2D-PIV技術(shù)獲得主閥腔內(nèi)部一個截面上的流場分布,并通過相似理論計(jì)算得出閥口壓降特性。CFD流場仿真和PIV試驗(yàn)結(jié)果表明:該雙閥芯電液比例多路閥主閥出油環(huán)形腔內(nèi)會形成較大旋渦,且閥口開度和流量對主閥進(jìn)口節(jié)流內(nèi)部流場結(jié)構(gòu)和閥口壓降特性有重要的影響。研究結(jié)果對定性分析雙閥芯電液比例多路閥主閥內(nèi)能量損失和噪聲、主閥的結(jié)構(gòu)和流道的設(shè)計(jì)以及優(yōu)化具有重要實(shí)際意義,為CFD技術(shù)和PIV技術(shù)在雙閥芯多路閥領(lǐng)域的應(yīng)用研究提供了參考。
[Abstract]:Taking a series of double valve spool electro-hydraulic proportional multiway valve as the research object, the main valve with different opening and flow rate is throttled along the inlet by using CFD flow field simulation technology and PIV visualization velocity measurement technology. The flow field of the valve cavity is studied by fluid simulation and visualization test. The flow field distribution at the inlet of the main valve is simulated by Fluent software and the pressure drop characteristics of the valve outlet are obtained. The flow field analysis results of the PIV test are used to verify the flow field analysis. The flow field distribution on a section of the main valve cavity is obtained by using 2D-PIV technique. The simulation results of the pressure drop characteristics of the valve outlet and the PIV test show that a large swirl will be formed in the oil ring cavity of the main valve with the double spool electro-hydraulic proportional to that of the main valve. The opening and flow rate of the valve have an important influence on the internal flow field structure and the pressure drop characteristics of the main valve inlet throttle. The results of the study are useful for the qualitative analysis of the energy loss and noise in the main valve of the double valve core electro-hydraulic proportional multiway valve. The design and optimization of the main valve structure and flow channel are of great practical significance, which provides a reference for the application of CFD technology and PIV technology in the field of double-spool multi-way valve.
【作者單位】： 先進(jìn)制造成形技術(shù)及裝備國家地方聯(lián)合工程研究中心(燕山大學(xué));燕山大學(xué)河北省重型機(jī)械流體動力傳輸與控制實(shí)驗(yàn)室;燕山大學(xué)機(jī)械工程學(xué)院;
【基金】：國家科技支撐計(jì)劃資助項(xiàng)目(2014BAF02B00)
【分類號】：TH137.52

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