无轴承旋翼挥舞角与摆振角的测量方法与应用

在分析国内外资料的基础上,提出了一种在国内现有条件下可行且满足精度要求的无轴承旋翼挥舞角、摆振角的试验测量方法.其要点为先利用激光方法测得的无轴承旋翼静态位移-载荷关系得到角度-载荷关系,结合应变方法测得的无轴承旋翼旋转状态下的载荷,最终通过转换得到无轴承旋翼旋转状态下挥舞角、摆振角.基于CAMRADII软件的计算分析与试验结果具有良好的相关性,这表明该方法可行且具有较高的准确度.

Flap and Lag Angle Measurement and Application of the Bearingless Rotor

Method to achieve the flap and lag angles of the bearingless rotor in the current condition based on the reports from home and abroad was developed. The key point was, firstly, obtaining the angle-load relationship from the static deflection-load test results with the laser measurement, and then measuring the load on hovering using SPA, lastly, achieving the flap and lag angles combining the forgoing two results. The method was valid to be feasible and high accuracy by the correlation analysis of the computation values of CAMRAD II and test results.