發(fā)布時(shí)間：2019-06-12 05:37

【摘要】：為了抑制壓力波動(dòng),對(duì)完整飛行剖面下的液壓系統(tǒng)工作狀態(tài)進(jìn)行分析.針對(duì)飛機(jī)液壓系統(tǒng)提出流量負(fù)載模擬器原理,設(shè)計(jì)新型變速積分PI控制器,建立系統(tǒng)數(shù)學(xué)模型,確定各參數(shù)取值,開(kāi)展數(shù)值仿真和試驗(yàn)研究,指出該流量負(fù)載模擬器的優(yōu)缺點(diǎn).仿真和試驗(yàn)結(jié)果均表明,在完整飛行剖面下,液壓系統(tǒng)的可用壓力在20.4 MPa以上,液壓系統(tǒng)穩(wěn)定可靠.相比于增量式PI控制器,采用變速積分PI控制器的壓力波動(dòng)至少減小了40%.
[Abstract]:In order to restrain the pressure fluctuation, the working state of the hydraulic system under the complete flight profile is analyzed. According to the principle of flow load simulator for aircraft hydraulic system, a new type of variable speed integral PI controller is designed, the mathematical model of the system is established, the values of each parameter are determined, the numerical simulation and experimental research are carried out, and the advantages and disadvantages of the flow load simulator are pointed out. The simulation and test results show that the available pressure of the hydraulic system is above 20.4 MPa under the complete flight profile, and the hydraulic system is stable and reliable. Compared with the incremental PI controller, the pressure fluctuation of the variable speed integral PI controller is reduced by at least 40%.
【作者單位】： 浙江大學(xué)流體動(dòng)力與機(jī)電系統(tǒng)國(guó)家重點(diǎn)試驗(yàn)室;航空機(jī)電系統(tǒng)綜合航空科技重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51675473) 浙江省重點(diǎn)科技創(chuàng)新團(tuán)隊(duì)(2013TD01)
【分類(lèi)號(hào)】：V245.1

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1 楊佳強(qiáng);滕炯華;裴潤(rùn)森;;飛機(jī)流量負(fù)載模擬系統(tǒng)復(fù)合控制策略研究[J];測(cè)控技術(shù);2012年09期

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