High-altitude Long-endurance Uav Overall Program Evaluation Criteria And Methods

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.