Application of dither control for automotive wiper squeal
作者： Bert Stallaert , Frederik Doucet , Jan Swevers , Sébastien Chaigne , Johan Rys
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摘要: This paper describes a feasibility study on dither control for automotive wiper squeal. Wiper squeal is tonal noise caused by an unstable vibration due to the friction between blade and windscreen. Dither superposition of high-frequency signal, in this case vibration, stabilize low-frequency unstability system. A finite element model has been developed facilitate choice design actuator system; piezo actuators are applied apply signal. First experimental results show that can effectively be suppressed control, as soon amplitude reaches certain threshold value.
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