SHAOZhi-yuan危险不能有效防治[5-1]。对于这个问题，国际上的众多专家选择基于比例积分微分（ProportionalIntegralHydraulicsPneumatics&Seals/No.1.2024doi:10.3969/j.issn.1008-0813.2024.01.019流动式架桥机制动液压系统设计及动态特性分析邵志元（中铁十二局集团第四工程有限公司，陕西西安710021）摘要：随着桥梁制造业的发展，建筑材料的运输安全获得关注。但工程中的路况复杂，流动式架桥机在行驶中存在安全隐患。为了防止这种情况发生，研究在比例积分微分控制算法中添加感应电磁铁，并在制动液压系统中添加磁屏蔽装置，用以削弱电磁铁产生的励磁电流。最后,将混合系统在Bemach数据集上进行实验，并与极限梯度提升等3种系统进行比较。在下坡时4种系统的制动时间分别为14,25,19,21s,混合系统的制动位移为8m；上坡时混合系统的制动时间和位移分别为8s和3m,在4种系统中表现最优。实验结果表明，研究提出的混合系统具有显著优势，能对架桥机进行有效制动。关键词：液压系统；感应电磁铁；磁屏蔽；PID控制算法；流动式架桥机中图分类号：TH137(The4thEngineeringCo.,Ltd.ofChinaRailway12thBureauGroup,Xi'an710021,China)Abstract:Withthedevelopmentofbridgemanufacturingindustry,thetransportationsafetyofbuildingmaterialshasattractedattention.However,theroadconditionsintheprojectarecomplex,andthemobilebridgeerectingmachinehaspotentialsafetyhazardsduringdriving.Inordertopreventthissituation,inductionelectromagnetisaddedtotheproportionalintegraldifferentialcontrolalgorithmandmagneticshieldingdeviceisaddedtothebrakehydraulicsystemtoweakentheexcitationcurrentgeneratedbyelectromagnet.Finally,thehybridsystemistestedonBemachdatasetandcomparedwiththreesystemssuchaslimitgradientlfting.Whengoingdownhill,thebrakingtimeofthefoursystemsis14s,25s,19sand21srespectively,andthebrakingdisplacementofthehybridsystemis8m.Whengoinguphill,thebrakingtimeanddisplacementofthehybridsystemare8sand3mrespectively,whichisthebestamongthefoursystems.Theexperimentalresultsshowthatthehybridsystemhasobviousadvantagesandcaneffectivelybrakethebridgeerectingmachine.Keywords:hydraulicsystem;inductionelectromagnet;magneticshielding;PIDcontrolalgorithm;mobilebridgeerectingmachine0引言造桥...
