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Analysis of Windshield Wiper Reversal Impact and Its Suppression by Structural Design
Technical Paper
2015-01-0108
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
With the increasing of people's demand for comfort of vehicles, the noise generated by the reverse of windshield wiper causes wide attention. In this paper, as the front windshield wiper of one car is considered, the impacts of the preload of wiper lever spring, the torsional stiffness of blade neck and the flexible connection between the wiper arm and the wiper lever on the vibration excitation applied to the front windshield are analyzed based on the multi-body dynamic model of wiper system. The dynamic model includes the crank pivot, the four linkage mechanism, the wiper blades, the wiper arms and the windscreen glass which has been established considering with elastic contact between the wiper blade and the front windshield. Based on the analysis results the dimensions of cross-section of the wiper blade rubber and the flexible connection between the wiper arm and the wiper lever are designed to reduce the quick-return impact of wiper lever. The effects of these measures to decrease the excitation pressure exerted on the windshield are simulated and evaluated by multi-body dynamic analysis. Then some methods to reduce the reversal noise of windshield wipers are put forward to improve the ride comfort for automobiles.
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Citation
Hou, Q., Qin, W., Yu, Z., Tang, M. et al., "Analysis of Windshield Wiper Reversal Impact and Its Suppression by Structural Design," SAE Technical Paper 2015-01-0108, 2015, https://doi.org/10.4271/2015-01-0108.Also In
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