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研究了筒型基础结构气浮的浮态和运动特性。假设浮筒内的空气为理想气体 ,导出了气浮力的计算式 ,建立了气浮结构静稳态的分析方法和浮态参数的计算方法。按单自由度刚体弹簧体系求得了气浮结构升沉运动的固有周期 ,并对气浮结构的动态特性进行了分析。浮态理论计算结果与模型试验和现场试验数据吻合。文中引进的气浮力折减因数体现了气浮体的恢复力刚度系数与普通浮体的差异 ,该参数对气浮体的浮态、稳性、运动特性都有很大的影响。
The floating and moving characteristics of the airfoil with cylindrical foundation are studied. Assuming that the air in the buoy is an ideal gas, the calculation formula of the gas buoyancy is deduced, and the static analysis method and the calculation method of the floating parameter of the air-floatation structure are established. According to the single degree of freedom rigid-body spring system, the inherent period of ascending movement of the flotation structure was obtained, and the dynamic characteristics of the flotation structure were analyzed. The calculated results of the floating state are in good agreement with the model test and field test data. The gas-buoyancy reduction factor introduced in this article shows the difference between the restoring force stiffness coefficient of the aerosol body and that of the ordinary buoyant body. This parameter has great influence on the aerosol body’s floating state, stability and movement characteristics.