直升机尾桨需用功率评价方法研究  

Research on the power evaluation method required for helicopter tail rotor

作　　者：李康 王泽峰[1] LI Kang;WANG Zefeng(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：《中国测试》2023年第12期142-148,共7页China Measurement & Test

摘　　要：作为操纵面和气动面,尾桨需用功率一直是直升机设计过程中非常关注的问题。工程当中的尾桨需用功率,原则上可以通过对尾桨轴扭矩的实测换算获得,但受限于传感器加装尾桨轴后的结构干涉等问题,一直无法获得飞行过程中尾桨轴的扭矩实测值。该文通过间接测量的方式,利用实测获得的直升机尾斜轴扭矩值,开展直升机真实大气飞行过程中的尾桨需用功率评价研究,选取定常的直升机稳定平飞和稳定悬停状态,将理论计算与实测结果进行对比,分析二者的差异性,同时分析基于尾斜轴扭矩测量结果的间接功率评价方法的准确性。该测量方法可为直升机尾桨需用功率评价提供可靠的技术支撑。As a control surface and aerodynamic surface,the power required by the tail rotor has always been a very concerned issue in the design process of helicopters.In principle,the power required for the tail rotor in the project can be obtained by converting the measured torque of the tail rotor shaft,but due to the structural interference of the sensor after the tail rotor shaft is installed,the measured value of the tail rotor shaft during flight has not been obtained.In this paper,the measured torque value of the tail inclined shaft of the helicopter is used to evaluate the power required by the tail rotor during the real atmospheric flight of the helicopter,and the stable level flight and stable hovering state of the helicopter are selected,the theoretical calculation and the measured results are compared,the difference between the two is analyzed,and the accuracy of the indirect power evaluation method based on the tail inclined shaft torque measurement results is analyzed.This measurement method can provide reliable technical support for the evaluation of the power required for helicopter tail rotor.

关 键 词：直升机 尾桨 需用功率 尾斜轴 扭矩 

分 类 号：TB9[一般工业技术—计量学]