Research Article

Influence of Core Thickness and Boundary Condition on the Modal Characteristics of Composite Structure with Metallic Damping Core

Table 4

Displacement deviation at measure points (D1 ∼ D12) under different boundary conditions. (unit: μm).

C-C-C-CC-C-C-FC-C-F-F
First orderSecond orderThird orderFirst orderSecond orderThird orderFirst orderSecond orderThird order
MVSDMVSDMVSDMVSDMVSDMVSDMVSDMVSDMVSD

D132.260.1134.790.0761.450.09831.560.0355.070.0920.860.13731.940.0735.090.0911.010.134
D232.310.1475.040.1541.620.14231.490.0275.220.1070.820.14431.860.1825.040.1430.990.097
D332.290.1254.940.0951.710.11731.440.0565.270.1131.060.20231.770.0615.030.1120.990.137
D432.220.1184.970.0821.320.13431.450.0435.330.0861.130.18330.720.0625.110.0831.120.146
D531.930.0944.830.1061.670.18731.490.0225.310.0940.960.11631.820.1245.080.1370.970.133
D632.180.1575.220.2331.750.14331.550.0165.410.0831.270.13431.790.1535.020.2241.080.212
D732.440.2015.310.1621.820.12631.520.0475.430.1171.180.24631.550.1155.040.0681.030.107
D831.970.1935.090.0661.870.13231.490.0285.130.1041.210.20931.230.0924.950.0471.150.093
D932.050.1154.850.0741.370.14531.550.0435.060.0970.910.17730.530.1464.890.1181.030.278
D1032.120.1744.920.0961.580.18431.480.0345.170.1050.920.09230.760.1284.910.1320.890.139
D1132.170.1645.180.1181.650.08831.450.0534.960.1320.990.10631.020.0794.880.1240.930.223
D1232.090.2475.110.1251.510.13931.440.0645.340.1090.870.10230.440.1344.760.0830.860.064