共查询到16条相似文献,搜索用时 78 毫秒
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建立液压平衡回路的数学模型,分析了回路失稳的因素,提出改善回路动态性能的措施;并通过计算机仿真及实验验证了措施的正确性。 相似文献
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建立液压平衡回路的数学模型,分析了回路失稳的因素,提出改善回路动态性能的措施;并通过计算机仿真及实验验证了措施的正确性。 相似文献
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为了对一种新型非道路车辆液压机械无级变速箱的动态特性进行研究,基于AMESim软件平台,建立了该变速箱的传动系统模型,并对其部分动态特性进行了仿真分析,研究了液压系统参数对其动态特性的影响,为液压机械无级变速箱制定相应的控制策略给予理论参考. 相似文献
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为研究电子液压制动(Electro-Hydraulic Brake,EHB)系统的动态特性和液压元件参数对特性的影响,建立了主要模块的数学模型,并基于AMESim软件建立了EHB系统模型,仿真分析电磁阀和蓄能器的主要参数对EHB系统动态特性的影响.通过ABS实验台实验与仿真结果比较表明,建立的EHB系统模型和液压元件参数的选择是准确的、合理的,为EHB系统的动态特性研究和设计提供了方法与依据. 相似文献
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At present,research on hydraulic mounts has mainly focused on the prediction of the dynamic stiffness and loss angle.Compared to the traditional finite element analysis method,the programming method can be used to analyze hydraulic mounts for a rapid and accurate understanding of the influence of the different mounting parameters on the dynamic stiffness and loss angle.The aims of this study were to investigate the nonlinear dynamic characteristics of a hydraulic mount,and to identify the parameters that affect the dynamic stiffness and loss angle using MATLAB software programs to obtain the influence curves of the parameters,so as to use suitable parameters as the basis for vibration analysis.A nonlinear mechanical model of a hydraulic mount was established according to the basic principles of fluid dynamics.The dynamic stiffness and loss angle of the dimensionless expression were proposed.A numerical calculation method for the dynamic performance evaluation index of the hydraulic mount was derived.A one-to-one correspondence was established between the structural parameters and peak frequency of the evalua-tion index.The accuracy and applicability of the mechanical model were verified by the test results.The results dem-onstrated the accuracy of the nonlinear mechanical model of the hydraulic mount,and the vehicle driving comfort was greatly improved by the optimization of the structural parameters. 相似文献
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