A lift and noise integrated test device and method for a coaxial twin propeller

CN116839672BActive Publication Date: 2026-06-19NANCHANG INST OF TECH

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: NANCHANG INST OF TECH
Filing Date: 2023-07-10
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

Existing technologies for noise and lift testing equipment for coaxial twin-propeller propellers are immature, especially lacking integrated lift and noise testing devices, which affects the safety control and noise management of coaxial twin-propeller propellers.

Method used

A testing device was designed, comprising a test frame body, a test rod fixing component, a U-shaped block, a test rod, a rope or support platform, a tension sensor, and a noise sensor. By measuring the force difference between the tension and compression sensors and the distribution of the noise sensors, the device enables simultaneous testing of lift and noise.

Benefits of technology

It provides a safe experimental space, accurate test results, simple structure, convenient operation, and easy mobility. It is suitable for integrated lift and noise testing of coaxial twin-propeller propellers, ensuring the safety and accuracy of the test.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a test device and method for integrating lift and noise testing of a coaxial dual-propeller propeller. The test device includes a test frame body, a test rod fixing component, a U-shaped block, a test rod, a rope or support platform, and a tension sensor. A horizontal tilt sensor is installed on the tail end surface of the test rod, and the coaxial dual-propeller propeller is mounted on the front upper surface of the test rod. The rope or support platform is located below the coaxial dual-propeller propeller and connects the front end of the test rod to the tension / compression sensor. The tension / compression sensor measures the force during the experiment and subtracts the force at zero state to obtain the lift of the coaxial dual-propeller propeller at a certain rotational speed. This invention is simple to operate and does not require complex calculation formulas. The lift of the coaxial dual-propeller propeller at a certain rotational speed can be obtained by subtracting the force measured by the tension / compression sensor during the experiment from the force at zero state.

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