剩余浮力对系留气球静平衡特性的影响分析

在进行系留气球总体方案设计时,剩余浮力的选择直接影响到系留气球气囊和副气囊体积等参数的设计,剩余浮力选择不当将造成研制成本的增加或静平衡特性指标无法实现。因此,对同一系留气球不同剩余浮力,及两种不同体积的系留气球在相同剩余浮力时的静平衡特性进行计算与对比分析。结果表明:对同一体积的系留气球,剩余浮力对系留气球俯仰角、高度损失和水平漂移量影响较大,且剩余浮力越大,其俯仰角、高度损失和水平漂移量越小;随着系留气球体积的增大,剩余浮力对系留气球高度损失和水平漂移量的影响将逐渐减小。

The impact of Residual Buoyancy for Tethered Balloon Static equilibrium

During tethered balloon preliminary design,the choosing of the residual buoyancy directly affect the parameter design of envelop and ballonet such as volume.Inappropriate choosing will leading to project cost increasing or cannot achieve equilibrium characteristic.Therefore,the equilibrium characteristic of the same tethered balloon with different residual buoyancy,and two tethered balloon with different volume at the equal residual buoyancy are analyzed and calculated.Results show that the same volume of tethered balloon,residual buoyancy is of greater impact for the pitch angle,height loss and horizontal drift,and the larger the residual buoyancy,the smaller its pitch angle,height loss and horizontal drift.Along with a tethered balloon volume increasing,the impact of the residual buoyancy for height loss and horizontal drift will gradually decrease.