摘要
大展弦比机翼载荷标定实验中,随着载荷的增加,机翼会发生弯曲变形,导致加载点的法向载荷方向发生变化,对载荷标定实验的准确性产生影响。为解决此问题,设计了一套大展弦比随动加载装置,该装置通过电缸控制加载点竖直方向的位移,通过位移台控制电缸水平方向的位移,利用联动控制系统使载荷标定实验中施加在机翼翼面的作用力与翼面始终保持垂直,保证机翼所受载荷始终沿法向。开展随动加载与砝码垂向加载对比实验,结果表明:随动加载获得的数据相关系数达到0.999,相较砝码垂向加载获得的数据相关系数0.976更优,验证了随动加载装置的有效性。该装置不仅具有体积较小、操作简便的优点,还为推动大展弦比机翼性能研究提供了有力支撑。
In the load calibration experiments of wings with high aspect ratio,the wings will bend and deform with the increase of load,resulting in a change in the direction of the normal load at the loading point,which affects the accu-racy of the load calibration experiments.To solve this problem,a set of high aspect ratio tracking loading device was de-signed.The device controls the vertical displacement of the loading point through an electric cylinder,and the horizontal displacement of the electric cylinder through a displacement table.The linkage control system is used to keep the force ex-erted on the wing surface in the load calibration experiment perpendicular to the wing surface,so as to ensure that the load on the wing is always in the normal direction.The comparison experiment between the tracking loading and the verti-cal loading was performed,and the results showed that the correlation coefficient of the data obtained by the tracking load-ing reached 0.999,which was better than the correlation coefficient of 0.976 obtained by the vertical loading of the weight,which verified the effectiveness of the tracking loading device.This device possesses the advantages of compact size and straightforward operation,thereby offering support for advancing the research on the performance of high aspect ratio wings.
作者
郭蔡果荟
杨军
GUO Caiguohui;YANG Jun(Changcheng Institute of Metrology&Measurement,Beijing 100095,China)
出处
《计测技术》
2024年第1期94-99,共6页
Metrology & Measurement Technology
基金
国家民用飞机专项科研项目(XXXX-XXXX)。
关键词
随动加载装置
大展弦比机翼
固定法向载荷
相关系数
对比实验
tracking loading device
high aspect ratio wing
fixed-normal load
correlation coefficient
comparison experiment
