一种航空活塞发动机力学性能测试实验台

By designing an experimental rig for testing the mechanical performance of aero-piston engines and adopting a combined structure of power shaft and bushing, simultaneous tensile and torque testing was achieved, solving the problem of single testing systems in existing technologies and improving testing efficiency and accuracy.

CN116481818BActive Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2023-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies can only test one of the mechanical properties of aircraft piston engines, namely tension or torque, and the testing system is limited and the results are not accurate enough.

Method used

An experimental rig for testing the mechanical performance of an aero-piston engine was designed, comprising a rig, an engine propeller assembly, a tensile testing assembly, and a torque testing assembly. The design of the power shaft and bushing enables simultaneous tensile and torque testing, and a locking assembly constrains the motion degrees of freedom of the power shaft and bushing before testing to avoid mismeasurement.

Benefits of technology

This allows for simultaneous tensile and torque testing without interference, improving testing efficiency and the accuracy of measurement data, avoiding false measurements, and ensuring the accuracy of test results.

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Abstract

本发明涉及发动机测试技术领域,尤其涉及一种航空活塞发动机力学性能测试实验台,包括台架和发动机螺旋桨组件,台架上端设置有测试机构,发动机螺旋桨组件与测试机构相连接,其特征在于,发动机螺旋桨组件固定设置在固定板上,发动机螺旋桨组件的输出端连接有动力轴,动力轴贯穿固定板设置,测试机构包括拉力测试组件和扭矩测试组件。本发明进行拉力测试和扭矩测试的过程分别由动力轴和轴套所执行,两种力学性能测试同步进行,但测试过程却互不干扰,轴套并不会影响拉力测试过程,动力轴也并不会影响扭矩测试过程,大大提高了航空活塞发动机力学性能测试的测试效率以及测量数据的准确性。
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