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To investigate the vibration and acoustic properties of the baffled functional gradient plates with general boundary conditions under turbulent excitation，a vibro-acoustic coupling model of the functional gradient plate under turbulent boundary layer wall pressure fluctuation is developed by the energy method based on the turbulent pressure fluctuation cross-spectral density，Chebyshev spectral method，Rayleigh integral and the continuity condition of the fluid-structure coupling surface. The accuracy of the algorithm is verified by the agreement with the analytical solution and experimental results. The effects of the general boundary condition and the gradient index of the FGM plate are studied. It can be noted that when the stiffness of the boundary spring is in a certain range，the peak frequencies of the flow-induced acceleration level and sound pressure level increase with the rise of the spring stiffness. When the stiffness of the boundary spring is large，low vibration and radiated sound exist at low frequency，while the radiated sound pressure is high at high frequency. As the gradient index increases，the peak frequency increases gradually，but the peak responses of the acceleration level and sound pressure level decrease.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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