Abstract:The theoretical model about displacement response of viscoelastic floating ice sheet subjected to impulse load was established, and it was solved by Fourier, Laplace and Hankel transform method for gentle and steep bank. By comparing with the computational result in uniform depth, the established theoretical model and calculation method were validated. Influences of depth, thickness of ice sheet, slope of bank on displacement response of floating ice sheet under impulse load were analyzed. These calculated results shows that when the depth increases, the amplitude of displacement response of ice sheet also increases simultaneously, but the variation trend slows down. When the thickness of ice sheet decreases, the amplitude of displacement response of ice sheet will grow with a sharp and nonlinear performance. When the slope angle of bank increases, the amplitude and vibration frequency of displacement response of ice sheet will increase. Due to the increase of slope and existence of bank, the accumulation of vibration energy will occur in ice and water system, which can excite greater deformation response of ice sheet.
鹿飞飞, 张志宏, 胡明勇,刘巨斌. 浅水岸壁条件下脉冲荷载引起的粘弹性浮冰层位移响应[J]. 振动与冲击, 2015, 34(14): 142-146.
LU Fei-fei,ZHANG Zhi-hong,HU Ming-yong,LIU Ju-bin. Displacement response of viscoelastic floating ice sheet subjected to impulse load under the condition of bank. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(14): 142-146.
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