Design and analysis of external passive vibration isolation platform for airborne optoelectronic system

Table 1. Design parameters of vibration isolation platform
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Table 1. Design parameters of vibration isolation platform
参数 $r / m$ $R / m$ $h / m$ $H / m$ $α / (°)$ $β / (°)$
值 0.175 0.235 0.054 0.112 38 55
参数 $m / kg$ $ξ$ $k / N \cdot m^{- 1}$ $I_{x}$ / $kg \cdot m^{2}$ $I_{y}$ / $kg \cdot m^{2}$ $I_{z}$ / $kg \cdot m^{2}$
值 26.4 0.2 16500 0.6 0.6 0.23

Table 2. Comparison of last six-order natural frequencies of vibration isolation platform
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Table 2. Comparison of last six-order natural frequencies of vibration isolation platform
阶数
7 8 9 10 11 12
解析解/Hz 3.56 3.56 6.03 6.03 7.77 8.94
仿真值/Hz 3.54 3.54 5.88 5.88 7.40 8.33
相对误差/% 0.6 0.6 2.6 2.6 5 7.3

Table 3. Comparison of parameters for vibration isolation platform
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Table 3. Comparison of parameters for vibration isolation platform
$h / m$ $m / kg$ $ξ$ $k / N \cdot m^{- 1}$
仿真值 0.051 27.3 0.2 16 500
实测值 0.058 26.8 0.15 16 000

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Yinqi CAO, Fei NING, Yanlu DU, Le WANG, Zhicao ZHAO, Yuying MAI. Design and analysis of external passive vibration isolation platform for airborne optoelectronic system[J]. Journal of Applied Optics, 2024, 45(6): 1125

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