一种改进后的浮空器气动性分析

Analysis of the Aerodynamic Characteristics of an Improved Aerostat

浮空器是一种利用氢气或氦气,依靠自身浮力升空的航空器。浮空器具有成本低、驻空时间长、载荷能力大等突出优点,应用范围十分广泛。该文以一种典型浮空器为研究对象,建立浮空器的有限元模型,再利用流固耦合的方法进行仿真计算,模拟出在一定风场条件下气球的空中姿态。对比其他结构类型的浮空器仿真数据,验证了此类浮空器在性能上的先进性。通过仿真数据也能找到浮空器结构的薄弱点,可以为后续进一步研究提供重要依据,未来还将利用气动仿真技术深入分析浮空器的其他特性,力争把浮空器应用到更多领域当中。

The aerostat is an aircraft that uses hydrogen or helium and lifts off on its own buoyancy,with outstanding advantages such as low cost,long dwell time and the large load capacity,and it has a wide range of applications.In this paper,a typical aerostat is taken as the research object,the finite element model of the aerostat is established,then the fluid-structure interaction method is used for simulation calculation,and the aerial attitude of the balloon under certain wind field conditions is simulated.Compared with the simulation data of other structural types of aerostats,the advanced performance of such aerostats is verified.The weak points of the structure of aerostats can also be found through simulation data,which can provide an important basis for follow-up further research.In the future,aerodynamic simulation technology will be used to deeply analyze other characteristics of aerostats and aerostats are striven to apply to more fields.