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MODEL-BASED METHOD AND SYSTEM FOR MONITORING THE CONDITION OF A SLIDING BEARING, PARTICULARLY FOR WIND TURBINES
MODEL-BASED METHOD AND SYSTEM FOR MONITORING THE CONDITION OF A SLIDING BEARING, PARTICULARLY FOR WIND TURBINES
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机译：基于模型的滑动轴承状态监测方法和系统，特别是风轮机
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摘要
The invention relates to a method and a system for monitoring the condition of a sliding bearing (1) operated with lubricating oil for a rotating component, in which a physical variable characteristic for the bearing is measured using at least one sensor (2), which variable is supplied to a control unit (ECU) for condition monitoring, comprising the following steps: - determining by means of the control unit (ECU) at least one condition variable (s; T; p) of the sliding bearing (1) and/or of the lubricating oil as an output variable (y) from at least one physical sliding bearing model (N-V-F), to which at least the rotational speed (n) and the torque (M) are supplied as input variables (u), and a dynamic behaviour of the lubricating oil is assigned to these input variables (u); - measuring with at least one sensor (2) a comparative value for at least one of the condition variables (s; T; p); - evaluating, from a comparison of the measured value of the condition variable (s; T; p) with the model-based value for the condition variable (s; T; p) computed as output variables (y), to what extend the physical sliding bearing model (N-V-F) maps the real behaviour of the sliding bearing (1).
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