简介:研究了因与外部接触而发生局部非线性的动力学系统.基于NOFRF理论,对系统中出现的各次谐波分量进行研究,推导出了该类系统各自由度各阶谐波分量的表达式.证明了该类动力学系统中各自由度之间高次谐波分量的与原线性系统动柔度矩阵的相关元素成正比关系,并据此提出了一种简洁的局部非线性位置的辨识方法.采用这种方法,可以通过结构体中任意两个部位之间的高次谐波分量的比值关系,经过一次谐波激励而辨识出非线性的具体位置.对一个多自由度系统进行数值仿真,验证了该方法的有效性.
简介:基于改进的KBM法,研究了强非线性多自由度自治系统的内共振.求出了极限环的振幅和近似解的表达式.与KBM法比较,该方法的特点是:近似解中包含项中的不再是时间的线性函数,而是时间的非线性函数,它能提高近似解的精度,且应用更广,最后给出一个具体实例,得到了近似解以及相图.和数值结果比较,本文方法具有较高的精度.
简介:ApplicationofH{sub}∞controltoautomaticvoltageregulator(AVR)ofenginegenerator.Approximateexplicitconstrainedlinearmodelpredictivecontrolviaorthogonalsearchtree.Asynchronizedsynchronousgenerator'svariablestructureexcitationcontrolanditstransientanalysis.B2,analternativetwowheeledvehicleforanautomatedurbantransportationsystem.Cascadeslidingmodecontrolofpermanentmagnetsynchronousmotors.
简介:[篇名]AsymptoticTimeOptimalTrackingofaClassofLinearSystemswithActuatorNonlinearities,[篇名]Compositenonlinearfeedbackcontrolforlinearsystemswithinputsaturation:theoryandapplication,[篇名]DesignofanaugmentedautomaticchoosingcontrolbyGAfornonlinearsystemswithconstrainedinput,[篇名]DesignofanaugmentedautomaticchoosingcontrolviaHamiltonianandGAfornonlinearsystemswithconstrainedinput,[篇名]Designofmulti-stagecompositenonlinearfeedbackcontrolforharddiskdrives,[篇名]Discrete-TimeCompositeNonlinearFeedbackControlWithanApplicationinDesignofaHardDiskDriveServoSystem,[篇名]DISTRIBUTEDNONLINEARCONTROLOFDIFFUSION-REACTIONPROCESSES,[篇名]GainAdaptiveNonlinearFeedbackControlofFlexibleSCARA/CartesianRobots。
简介:[篇名]DynamicsofthemaneuveringvehicleIKARcontrolsystembytheorbitalplacementofglobalstarsatellites,[篇名]InformationSetsintheProblemofObservationofAircraftMotioninaHorizontalPlane,[篇名]Nonlinearcontrolofamagneticbearingsystem,[篇名]PowersystemtransientstabilityenhancementbySTATCOMwithnonlinearcontrolsystem,[篇名]Selectingoperatingpointsfordiscrete-timegainscheduling,[篇名]StabilityanalysisofnonlinearcontrolsystemswithfuzzyDMCcontrollers,[篇名]Three-dimensionalreachabilitysetforanonlinearcontrolsystem,[篇名]WheelslipcontrolinABSbrakesusinggain-scheduledconstrainedLQR。