A hydraulic system for a landing gear tire loading simulation test of an aircraft on board

By designing a hydraulic system for simulating the loading of aircraft landing gear tires on a vehicle, the problem of insufficient loading accuracy of existing test benches was solved, and high-precision control of aircraft tires under different working conditions and multi-scenario testing requirements were achieved.

CN116972037BActive Publication Date: 2026-05-19HENAN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202310831254.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-07
Publication Date
2026-05-19
Estimated Expiration
2043-07-07

AI Technical Summary

Technical Problem

Existing aircraft landing gear tire testing benches lack sufficient loading accuracy and are greatly affected by the conditions of the aircraft runway, thus failing to meet comprehensive testing requirements.

Method used

A hydraulic system for simulating aircraft landing gear tire loading tests was designed, including a hydraulic oil source module, a servo loading module, an attitude control module, and a braking module. Through the combination of multiple cylinders and valves, the system can achieve precise control of aircraft tires and simulate tests under different working conditions.

Benefits of technology

It achieves high-precision and stable loading control, is suitable for gliding, falling and obstacle crossing tests, has high-frequency response and voltage stabilization performance, and meets the loading requirements of structural tests.

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Abstract

The application discloses a kind of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems, including hydraulic oil source module, servo loading module, attitude control module and brake module;Wherein attitude control module includes lateral inclination module, vertical module, lateral movement module, the main oil way of hydraulic oil source module is divided into two roads and enters servo loading module and attitude control module respectively, each module is connected with corresponding oil cylinder by element, and each module is simulated to the different control effect of aircraft tire by each oil cylinder action, to complete corresponding test.The application can fully meet the requirements of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems of sliding test, falling experiment and obstacle test, the application is good in universality, can simulate the lateral inclination angle range of landing gear tire under different working conditions, lateral deflection angle range, vertical loading formation, lateral adjustment stroke, detect the reliability of aircraft landing gear tire under different working conditions.
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