近壁面柱体涡激振动的迟滞效应1)
刘俊*†,高福平*†2)(
)
)
HYSTERESIS IN VORTEX-INDUCED VIBRATIONS OF A NEAR-WALL CYLINDER1)
Liu Jun*†,Gao Fuping*†2)()
)
图7. 升降流速过程振动幅值随约减速度的变化
Fig.7. Variations of vibration amplitude with reduced velocity both showing increasing and decreasing velocities ($D =0.08$m,$m^*=1.85$,$f_{\rm n} =0.57$Hz, $\zeta = 1.10\times 10^{ - 2}$,$K_{\rm s}=3.14\times 10^{ - 2}$,$Re =O(10^{4})$)
