Multifunctional tail rotor test system

Abstract

The invention relates to a multifunctional helicopter tail rotor test system. The system comprises a test bed body, a three-phase asynchronous motor, a motor rotating speed control system, a propellerpitch control system, a gearbox, a ducted tail rotor transmission shaft, a ducted tail rotor, a conventional structure tail rotor transmission shaft, a conventional structure tail rotor, a force measuring rod system, a force measuring balance, a first torque sensor, a second torque sensor, a sound level meter, a wind speed and wind temperature measuring instrument and a data acquisition system. The test requirements of tail rotors of various structural forms such as tail rotors of conventional structures and ducted tail rotors can be met, various test items such as performance tests, dynamictests, noise research and ground load measurement can be carried out, tests can be carried out by completely simulating a real machine, and the consistency of boundary conditions and the working conditions of the tail rotors is high.

Description

technical field [0001] The invention relates to the field of helicopter tests, in particular to a multifunctional tail rotor test system. Background technique [0002] The tail rotor is an important part of the helicopter's lift system, which is mainly used to balance the anti-torque during flight, and is also the main component of the operating heading. The tail rotor is divided into seesaw type, universal joint type, hinge type, bearingless type, scissor type, ducted tail rotor, etc. from the structural form. Compared with the ducted tail rotor, the first five tail rotor forms can be collectively referred to as conventional structures tail rotor. In the model development process, in order to determine the performance and efficiency of the tail rotor, a series of tests such as performance test, dynamic test, noise research, and ground load measurement need to be carried out on the tail rotor. According to the test results, it is verified whether the design of the tail roto...

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Problems solved by technology

[0003]Currently, the domestic existing test devices of the same kind are generally only specially designed for the tail rotor with one of the above-mentioned structural forms, and the functions of the test devices are relatively single. One or a few of the above test items can be carried out

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