直升机旋翼载荷飞行测试结果的分析与应用

摘要

To improve the read speed of the voluminous datum, the EMS memory image method is adopted.And a new analytical method of the data is given.It is special for the phenomenon that the periodicity characteristic is not obvious when the helicopter maneuvers.The differences between the new analytical method and the traditional one are analyzed, and the result reveals the superiority of the new method.The test situation, the data processing method, the theoretical computation and the contrast of calculation and test are described in particular.The emphasis is to compare the theoretical calculation and the test results.Some coefficients are obtained and applied to the interrelated calculation results.%针对直升机试飞实测数据量庞大的问题,采用了内存映像方法,大大提高了数据读取速度,比常用的I/O方法快几十倍甚至几百倍.同时针对直升机机动状态试飞数据周期性不是很强这一特点,提出了新的数据处理方法,并与传统方法进行了比较,结果显示了新方法的优越性.文章详细论述了旋翼载荷的测试情况、数据处理方法、旋翼载荷的理论计算方法、载荷的理论计算结果与试飞实测的对比分析,得出了相关状态的修正系数,并进一步应用于同类状态的计算载荷处理上.