近壁面柱体涡激振动的迟滞效应1)
刘俊*†,高福平*†2)(
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HYSTERESIS IN VORTEX-INDUCED VIBRATIONS OF A NEAR-WALL CYLINDER1)
Liu Jun*†,Gao Fuping*†2)()
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图6. 升降流速过程中柱体振动频率随约减速度的变化
Fig.6. Variations of vibration frequency with reduced velocity both showing increasing and decreasing velocities($D =0.08$m,$m^*=1.85$,$f_{\rm n} =0.57$Hz, $\zeta = 1.10 \times 10^{ - 2}$,$K_{\rm s}=3.14\times 10^{ - 2}$,${Re}=O(10^{4})$)
