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首页> 外文会议>Reliability and Maintainability Symposium (RAMS), 2012 Proceedings - Annual >Extended friction model of a hydraulic actuated system
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Extended friction model of a hydraulic actuated system

机译：液压执行系统的扩展摩擦模型

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The main contribution of this paper is an experimental validation and comparison of three different friction models for an electro-hydraulic servo system. The first is the well-kn own LuGre model which incorporates dynamic friction effects. The second model is based on a relatively recent publication by Yanada in 2008 [6], which incorporates liquid film thickness in the servo valve. The third model is a new contribution presented in this paper, where valve underlap and mass acceleration are combined with the LuGre model. The experimental results show that for hydraulic systems, the film thickness model is an improvement over the LuGre model, while the new model presented in this paper is an improvement over both the LuGre and the film thickness models. An accurate friction model is an important tool for reliability engineers when distinguishing maintenance related degradation from dynamic effects.
机译：本文的主要贡献是对电动液压伺服系统的三种不同摩擦模型进行了实验验证和比较。首先是众所周知的LuGre模型，其中包含动态摩擦效应。第二种模型基于Yanada在2008年出版的相对较新的文献[6]，该模型在伺服阀中加入了液膜厚度。第三个模型是本文提出的新成果，其中将阀门欠重叠和质量加速度与LuGre模型结合在一起。实验结果表明，对于液压系统，膜厚模型是对LuGre模型的改进，而本文提出的新模型是对LuGre和膜厚模型的改进。准确的摩擦模型是可靠性工程师在区分维护相关的退化与动态影响时的重要工具。

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