高空长航时无人机总体方案评价准则方法研究

【作者】 张毅；

【导师】 王和平；

【作者基本信息】 西北工业大学 ， 飞行器设计， 2006， 硕士

【摘要】 本文首先建立高空长航时无人机总体设计模型,通过对有人驾驶战斗机的作战效能评估方法的研究和对高空长航时无人机效能有影响的参数进行分析,提出并建立了高空长航时无人机总体方案的一般评估准则和总效能评估公式;详细分析了影响高空长航时无人机侦察效能的总体性能参数,在此基础上建立了侦察效能的评估公式;分析了当高空长航时无人机具备攻击能力时,影响其攻击效能的参数,在此基础上建立了攻击效能的评估公式;运用该方法对“全球鹰”和“捕食者”两种长航时无人机的效能指数进行了定量评估,验证了该评估准则的可用性。通过对结果的分析得出对高空长航时无人机效能影响显著的性能参数,在设计过程中可以通过提高这些性能参数指标,达到提高高空长航时无人机总效能的目的。本论文的主要工作有以下几点: 1.建立高空长航时无人机总体设计模型 与有人驾驶飞机一样,无人机的总体设计模型主要包括:几何模型,气动力模型,重量模型,动力装置模型,飞行性能模型。 2.建立总效能评估公式和侦察/攻击效能评估公式 在研究有人驾驶战斗机作战效能的基础上,结合高空长航时无人机自身的特点,建立其总效能的评估公式;详细分析了影响高空长航时无人机侦察效能的总体性能参数,在此基础上建立了侦察效能的评估公式;分析了当高空长航时无人机具备攻击能力时,影响其攻击效能的参数,在此基础上建立了攻击效能的评估公式。 3.验证效能评估公式的合理性 运用该方法对全球鹰和捕食者两种长航时无人机的效能指数进行了定量评估,将结果进行分析比较,验证了该评估准则的可用性。 4.飞机参数影响分析 通过对结果的分析得出对高空长航时无人机效能影响显著的性能参数,详细分析了这些参数对飞机效能的影响,提出了相应的改进方法,从而可以提高飞机的总效能。更多还原

【Abstract】 The High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV) configuration design model is established in this thesis. A general efficiency estimate criterion and specific mathematical estimated formulas for an overall structural concept of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV) system is also established. The overall characteristic parameters which have the influence on the reconnaissance effectiveness of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV) is analyze, and the evaluation criterion formulas for reconnaissance effectiveness on the basis of above analysis is establish;The paper also establish the evaluation criterion formulas for attack effectiveness on the analysis of the parameters which have the influence on the attack effectiveness of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicles (UAV) which have attack ability;Evaluate the effectiveness exponents of two kinds of Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV), the "global hawk" and the "predator", by means of this method. The result can prove the availability of this estimate criterion. With the above analysis, we can get some overall characteristic parameters which have prominent influence on general efficiency. We also analyze these in detail and make some improved methods, which can improve the general efficiency of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV). The main points of the work are stated as follow:1. Establish the High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV) Configuration Design Model, which including geometry model, aerodynamic force model ,structural weight model, propulsion system model, air performance model.2. Establish a general estimate criterion, specific mathematical estimated formulas, and the evaluation criterion formulas for reconnaissanceeffectiveness / attack effectiveness. The general efficiency estimate criterion is established on the bases of the study about the Fighter’ Combat Effectiveness and its special characteristic. The overall characteristic parameters which have the influence on the reconnaissance effectiveness of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV) is analyze, and the evaluation criterion formulas for reconnaissance effectiveness on the basis of above analysis is establish;The paper also establish the evaluation criterion formulas for attack effectiveness on the analysis of the parameters which have the influence on the attack effectiveness of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicles (UAV) which have attack ability.3. Validate the availability and the rationality of this estimate criterion. The effectiveness exponents of two kinds of Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV), the "global hawk" and the "predator", are evaluated by means of this method. The result can prove the availability of this estimate criterion.4. Analysis of overall parameters. With the above analysis, we can get some overall characteristic parameters which have prominent influence on general efficiency. We also analyze these in detail and make some improved methods, which can improve the general efficiency of High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicle (UAV).Because of absence of information and data of the overall characteristic parameters, the calculation and conclusion of this paper could be utilized to some extent for developing HALE.更多还原