Modal Analysis of Rotating Tires in Stationary and Rotating Frames of Reference
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Design and development of tires require accurate characterization of their dynamic response. For this purpose, Experimental Modal Analysis (EMA) techniques have been heavily utilized. However, as the focus shifts from stationary to rotating tires, testing solutions become limited and more challenging. Conventionally, cleat excitation with force measurements on the fixed spindle has been the standard approach for testing tires in rotation. However, the limited control on the input excitation has hindered the characterization of rotating tires, especially at high frequency.