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A synchronous test device for the dynamic characteristics of an axially compact aircraft propeller

A technology for simultaneous testing and dynamic characteristics, applied in the aerospace field, can solve the problem of inability to measure the dynamic characteristics of coaxial twin propellers, and achieve the effects of reducing test costs, improving efficiency and reducing interference

Active Publication Date: 2020-02-07
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the distance between the rotating planes of the two propellers is relatively close, the propeller dynamic characteristic test bench in series layout will be constrained by a large axial space, and this kind of series layout will not be able to realize the dynamic characteristic measurement of coaxial twin propellers

Method used

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  • A synchronous test device for the dynamic characteristics of an axially compact aircraft propeller
  • A synchronous test device for the dynamic characteristics of an axially compact aircraft propeller
  • A synchronous test device for the dynamic characteristics of an axially compact aircraft propeller

Examples

Experimental program
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Embodiment Construction

[0024] like Figure 1-3 As shown, the axial compact aircraft propeller dynamic characteristic synchronization test device includes a fixed base 1, a side bracket 2, a cylindrical guide shaft 3, a guide shaft support frame 4, a guide shaft slider 5, a slider adapter 6, and a support plate 7 , rotating flange 8, stop block 9, propeller motor 10, force sensor support block 11, tension pressure force sensor 12, rod end joint bearing 13, tension pressure torsion sensor 14, torsion sensor support block 15 .

[0025] Firstly, the rotating flange 8 can be passed through the support plate 7, and the rotating flange 8 can be axially fixed on the supporting plate 7 with the stop block 9, so that the rotating flange 8 can rotate freely relative to the axial direction. The next step is to connect the bearing end of the rod end joint bearing 13 to the rotating flange 8, fix the rod end of the rod end joint bearing 13 to the tension pressure torsion sensor 14, and pass the tension pressure ...

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Abstract

The invention discloses a synchronous dynamic property testing device and method for an axially compact aircraft propeller. The device comprises a fixing base, side supports, a cylindrical guide shaft, a guide shaft supporting frame, a guide shaft sliding block, a sliding block adapter head, a supporting plate, a rotary flange plate, a stop baffle block, a propeller motor, a force-measuring sensorsupporting block, a pull pressure thrust-measuring sensor, a rod end joint bearing, a pull pressure torque-measuring sensor and a torque-measuring sensor supporting block. Two synchronous dynamic property testing devices are axially and symmetrically installed, and a propeller torque is obtained according to a value of the pull pressure torque-measuring sensor and the geometric size of the rotaryflange plate. A propeller thrust is obtained according to a value of the pull pressure thrust-measuring sensor at the bottom of the supporting plate and geometrical parameters of a force arm. Synchronous dynamic property testing of the aircraft propeller is achieved. The axial length of the testing device is shortened, and the dynamic property testing efficiency is improved. The interference of different freedom degrees is reduced, improvement of testing precision is facilitated, and the testing cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of aerospace and can be used for testing the propeller dynamic characteristics of aircraft such as unmanned aerial vehicle and aerostat, especially the propeller dynamic characteristic test of coaxial double propeller aircraft. Background technique [0002] In recent years, propeller electric propulsion technology and its application for aircraft such as drones and aerostats have developed rapidly. Electric motors driven by electric motors to drive propellers to generate aircraft propulsion power have become an important solution to replace traditional internal combustion aeroengines. [0003] The propeller dynamic characteristics mainly include thrust characteristics and torque characteristics. The comprehensive dynamic characteristics are the basis of the overall dynamic design and control of related aircraft, and are used to determine whether the selected power system performance parameters meet the requi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 钱浩张秦岭胡宣洋
Owner BEIHANG UNIV
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