失重试飞方法优化设计与试验  

Optimal design and test of weightless flight

作　　者：饶秋磊 杨媚[1] 尹艳艳 孟祥喆 RAO Qiulei;YANG Mei;YIN Yanyan;MENG Xiangzhe(Chinese Flight Test Establishment,Xi'an 710089,China)

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《飞行力学》2023年第6期76-81,共6页Flight Dynamics

摘　　要：为了支持中国航天、空天事业的快速发展,开展失重试验及训练的需求极为迫切且增长迅速,因此,亟待构建微重力试验环境开展失重飞行。失重飞机可利用抛物线机动飞行产生微重力环境,具有时间长、可多次重复、试验准备周期短、成本低等优点。研究了失重飞行的运动特性、操纵方法以及试飞数据的变化规律,设计了提升微重力飞行精度的操纵方法,并通过模拟器试验以及飞行试验对新方法进行了演示。试验结果表明:微重力飞行的精度得到明显提升。同时,所提方法有利于机组正、副驾驶的协同工作,可通过合理的分工与配合提升飞行操纵效率。In order to support the rapid development of China's space and sky undertakings,the demand for weightlessness test and training is extremely urgent and growing fast.Therefore,it is urgent to build a microgravity test environment.The weightless aircraft can use the parabolic maneuver flight to generate microgravity environment,which has the advantages of long time of weightless,repeatability,short test preparation period and low cost.In this paper,the motion characteristics,control methods and transformation law of the weightless flight are analyzed,and the optimization control method to improve the precision of microweight flight is proposed.According to the simulation and real flight test,the new method is demonstrated.The test results indicate that the accuracy of microgravity flight has been significantly improved,and the proposed method is conducive to the collaborative work of the pilot and copilot,and can improve flight control efficiency through reasonable division of labor and cooperation.

关 键 词：失重飞行 微重力精度 试飞优化 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程]