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| Engineering research on aerostat pressure control system |
| LI Kai1, LI Hong-Gang2 |
1. No.27 Research Institute, China Electronic Technology Corporation, Zhengzhou 450047, China；
2. System Division, Naval Equipment Institute, Beijing 100073, China |
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Abstract Pressure control system is one of the most essential and important systems for an aerostat, the engineering design of which may directly relate to its security and capability. The basic pressure control requirement of an aero-boat, as a typical instance of aerostat, was derived according to the stress analysis of envelope material and the requirements of aerodynamic shape-keeping. The construction of the pressure control system and the engineering design of its main parameters were discussed. The regulation capability of the system and its influence on the whole aerostats capability were analyzed from the aspects of regulating-speed and regulating-range. The relationship curve between ballonet-scale and flying-height was provided, which clearly showed the minimum vol. limit of the aerostat according to the designed flyingheight. Moreover, the typical control method of pressure control system was introduced, which was proved effective by autonomous flight experiments of a middle altitude verifying airship. The engineering research on pressure control system of aerostat focuses on its practicality,and is valuable in engineering design.
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Published: 28 October 2009
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浮空飞行器压力调节控制系统工程研究
压力调节控制系统是浮空型飞行器最基本、最重要的组成部分之一,其工程设计直接关系到浮空平台的安全和性能.根据囊体材料应力分析和浮空平台保持形状的要求,推导了以飞艇为代表的浮空型飞行器压力控制的基本控制要求；探讨了浮空型飞行器压力控制系统的构成和主要参数的工程设计方法；从调节速度和调节范围两方面分析了压力控制系统的调节能力及其对飞艇平台性能的影响,并给出设计飞行高度和空气囊占比的关系曲线,从而明确了设计飞行高度对浮空平台体积的要求；介绍了典型的压力系统控制方法,并经中空实验飞艇自主飞行验证,压力控制效果明显.压力控制系统的工程设计研究侧重于实际应用,具有工程实用价值.
关键词：
浮空器,
压力控制,
囊体材料,
气囊
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