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-C | C-C-C-F | C-C-F-F | First order | Second order | Third order | First order | Second order | Third order | First order | Second order | Third order | MV | SD | MV | SD | MV | SD | MV | SD | MV | SD | MV | SD | MV | SD | MV | SD | MV | SD |
| D1 | 32.26 | 0.113 | 4.79 | 0.076 | 1.45 | 0.098 | 31.56 | 0.035 | 5.07 | 0.092 | 0.86 | 0.137 | 31.94 | 0.073 | 5.09 | 0.091 | 1.01 | 0.134 | D2 | 32.31 | 0.147 | 5.04 | 0.154 | 1.62 | 0.142 | 31.49 | 0.027 | 5.22 | 0.107 | 0.82 | 0.144 | 31.86 | 0.182 | 5.04 | 0.143 | 0.99 | 0.097 | D3 | 32.29 | 0.125 | 4.94 | 0.095 | 1.71 | 0.117 | 31.44 | 0.056 | 5.27 | 0.113 | 1.06 | 0.202 | 31.77 | 0.061 | 5.03 | 0.112 | 0.99 | 0.137 | D4 | 32.22 | 0.118 | 4.97 | 0.082 | 1.32 | 0.134 | 31.45 | 0.043 | 5.33 | 0.086 | 1.13 | 0.183 | 30.72 | 0.062 | 5.11 | 0.083 | 1.12 | 0.146 | D5 | 31.93 | 0.094 | 4.83 | 0.106 | 1.67 | 0.187 | 31.49 | 0.022 | 5.31 | 0.094 | 0.96 | 0.116 | 31.82 | 0.124 | 5.08 | 0.137 | 0.97 | 0.133 | D6 | 32.18 | 0.157 | 5.22 | 0.233 | 1.75 | 0.143 | 31.55 | 0.016 | 5.41 | 0.083 | 1.27 | 0.134 | 31.79 | 0.153 | 5.02 | 0.224 | 1.08 | 0.212 | D7 | 32.44 | 0.201 | 5.31 | 0.162 | 1.82 | 0.126 | 31.52 | 0.047 | 5.43 | 0.117 | 1.18 | 0.246 | 31.55 | 0.115 | 5.04 | 0.068 | 1.03 | 0.107 | D8 | 31.97 | 0.193 | 5.09 | 0.066 | 1.87 | 0.132 | 31.49 | 0.028 | 5.13 | 0.104 | 1.21 | 0.209 | 31.23 | 0.092 | 4.95 | 0.047 | 1.15 | 0.093 | D9 | 32.05 | 0.115 | 4.85 | 0.074 | 1.37 | 0.145 | 31.55 | 0.043 | 5.06 | 0.097 | 0.91 | 0.177 | 30.53 | 0.146 | 4.89 | 0.118 | 1.03 | 0.278 | D10 | 32.12 | 0.174 | 4.92 | 0.096 | 1.58 | 0.184 | 31.48 | 0.034 | 5.17 | 0.105 | 0.92 | 0.092 | 30.76 | 0.128 | 4.91 | 0.132 | 0.89 | 0.139 | D11 | 32.17 | 0.164 | 5.18 | 0.118 | 1.65 | 0.088 | 31.45 | 0.053 | 4.96 | 0.132 | 0.99 | 0.106 | 31.02 | 0.079 | 4.88 | 0.124 | 0.93 | 0.223 | D12 | 32.09 | 0.247 | 5.11 | 0.125 | 1.51 | 0.139 | 31.44 | 0.064 | 5.34 | 0.109 | 0.87 | 0.102 | 30.44 | 0.134 | 4.76 | 0.083 | 0.86 | 0.064 |
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