Method for airplane wheel bearing side deflection load impact test
A technology of impact test and partial load, applied in the direction of mechanical bearing testing, etc., can solve the problems of difficult test implementation, unreliable test data, high cost, and shorten the development cycle.
Inactive Publication Date: 2016-02-17
XIAN AVIATION BRAKE TECH
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Problems solved by technology
This method is costly, and the test is difficult to implement. It can only barely simulate the acceleration of the impact and the wheel did not rotate during the test. It is very different from the actual landing conditions of the aircraft, and the test data is unreliable.
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Embodiment Construction
[0061] This embodiment is a lateral load impact test of a certain type of aircraft wheel bearing, and the testing machine used is an aircraft wheel bearing load impact test machine. The content of the lateral load impact test includes whether the test bearing has cracks, deformation and pitting under rated load impact, lateral deflection angle and rated speed, whether there is fatigue spalling or spalling depth, area, and the effect of load and rotational speed. Below is the temperature change curve of the inner ring of the test bearing, and the change of the clearance before and after the test.
[0062] The aircraft wheel bearing load impact testing machine includes a loading system and a driving system.
[0063] The loading system is a vertical hydraulic loading method, which is disclosed in the invention of 2014102708950. The loading system includes a base plate 5, a pressure wheel 6, a U-shaped loading head 7, a loading shaft 8, a brake 9, a movable plate 10, a load senso...
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The invention discloses a method for an airplane wheel bearing side deflection load impact test, and aims to realize simulation of airplane wheel bearing rotation and stress operating conditions of an airplane wheel at the moment of landing. According to the method, a double-roller type airplane wheel bearing load impact tester is used for simulating airplane wheel bearing stress operating conditions and test condition use operating condition states during the launching and high-speed taxiing, at an impact moment during landing, and in the process of side deflection landing and stopping, and the working condition of the airplane wheel bearing can be comprehensively reflected to realize accurate evaluation on the strength and service life of the airplane wheel bearing, thereby providing a credible test basis for researching an aircraft wheel baring with a higher rotating speed and a heavier load, effectively shortening the development cycle, and filling up a domestic blank in the technical field.
Description
technical field [0001] The invention relates to an aircraft wheel bearing load impact test machine, in particular to a test method for simulating the working condition of the aircraft wheel bearing bearing the impact of the lateral load when the aircraft laterally lands. Background technique [0002] Bad weather is one of the important reasons that affect the normal take-off and landing of aircraft. Sudden changes in weather, the invasion of micro-downdrafts, and flight and forced landing under complex weather conditions may cause the aircraft to encounter crosswinds. Crosswinds and wind shear have always been important threats to aircraft landing safety. Crosswind landings It is one of the most complicated and dangerous flying methods, which not only tests the pilot's flying experience and adaptability, but also tests the performance of the entire landing gear of the aircraft, and the wheel bearing is one of the most important parts, which is related to the aircraft's Safe...
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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 邓伟林习鹤
Owner XIAN AVIATION BRAKE TECH