Analysis and Optimization of Low-Speed Road Noise in Electric Vehicles

Table 1

Comparison of the natural frequencies of the front four modes.

Formation	Finite metacalculation frequency/Hz	Modal test frequency/Hz
First-order bending	25.7	24.5
First-order twist	43.1	40.3
Second-order bending	58.7	59.4
Second-order twist	63.0	66.0