Analytical Modeling of Hard-Coating Cantilever Composite Plate considering the Material Nonlinearity of Hard Coating

Table 4

The first 8-order natural frequencies of composite plate obtained by experiment and linear calculation/Hz.

Order	1	2	3	4	5	6	7	8
Experiment	47.0	132.10	287.5	460.4	509.1	813.4	909.3	989.2
Linear calculation	46.7	132.6	289.4	463.4	505.4	820.9	901.1	995.3
Difference	0.64%	0.37%	0.66%	0.65%	0.72%	0.92%	0.90%	0.62%