基于数字虚拟飞行的民机复飞爬升梯度评估
发布时间：2018-09-06 08:53
【摘要】：飞机的爬升梯度反映了其越过地面障碍达到安全高度的能力,为保障民机复飞时的飞行安全,适航条款规定复飞爬升梯度应满足一定的数值要求。根据适航条款对民机复飞程序和复飞爬升梯度的规定,提出了一种基于数字虚拟飞行的复飞爬升梯度适航符合性评估方法。基于适航条款规定和驾驶员操纵特点,建立了复飞任务的数字化模型和驾驶员操纵模型,进而以中国某型涡喷支线客机为对象建立飞行动力学模型,构成了可进行复飞爬升任务仿真的数字虚拟飞行仿真系统。通过仿真计算完成了对着陆爬升和进场爬升的爬升梯度评估,并与真实试飞结果对比,评估相对误差在10%以内,验证了本文方法的适用性和准确性。本文方法可应用于民机的概念方案设计,为保证飞机复飞爬升性能的适航符合性和最大着陆重量的确定等提供支持。
[Abstract]:The climbing gradient of the aircraft reflects its ability to reach the safe altitude over the ground obstacle. In order to ensure the flight safety of the civil aircraft during the overflight, the airworthiness clause stipulates that the climbing gradient of the aircraft should meet certain numerical requirements. According to the provisions of the airworthiness clause on the civil aircraft overflight procedure and the scrambling gradient, a method for evaluating the airworthiness of the scrambling gradient based on digital virtual flight is proposed. Based on the provisions of airworthiness clause and the characteristics of pilot control, the digital model and pilot control model of the flyback mission are established, and then the flight dynamics model of a Chinese turbojet branch airliner is established. A digital virtual flight simulation system is constructed which can simulate the mission of overflying and climbing. The evaluation of landing and approach climbing gradient is completed by simulation, and the relative error is less than 10% compared with the real flight test results, which verifies the applicability and accuracy of the proposed method. This method can be applied to the conceptual design of civil aircraft, which can provide support to ensure the airworthiness and the determination of the maximum landing weight of the aircraft.
【作者单位】： 北京航空航天大学大型飞机高级人才培训班;北京航空航天大学航空科学与工程学院;
【基金】：国家“863”计划(2014AA110501)~~
【分类号】：V328
本文编号：2225840
[Abstract]:The climbing gradient of the aircraft reflects its ability to reach the safe altitude over the ground obstacle. In order to ensure the flight safety of the civil aircraft during the overflight, the airworthiness clause stipulates that the climbing gradient of the aircraft should meet certain numerical requirements. According to the provisions of the airworthiness clause on the civil aircraft overflight procedure and the scrambling gradient, a method for evaluating the airworthiness of the scrambling gradient based on digital virtual flight is proposed. Based on the provisions of airworthiness clause and the characteristics of pilot control, the digital model and pilot control model of the flyback mission are established, and then the flight dynamics model of a Chinese turbojet branch airliner is established. A digital virtual flight simulation system is constructed which can simulate the mission of overflying and climbing. The evaluation of landing and approach climbing gradient is completed by simulation, and the relative error is less than 10% compared with the real flight test results, which verifies the applicability and accuracy of the proposed method. This method can be applied to the conceptual design of civil aircraft, which can provide support to ensure the airworthiness and the determination of the maximum landing weight of the aircraft.
【作者单位】： 北京航空航天大学大型飞机高级人才培训班;北京航空航天大学航空科学与工程学院;
【基金】：国家“863”计划(2014AA110501)~~
【分类号】：V328
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