Aircraft rear fuselage dynamic load follow-up loading test device
A technology of dynamic load and follow-up loading, which is applied in the direction of measuring device, vibration test, machine/structural component test, etc., can solve the problems that have not been done before, and achieve the effect of stable performance, compact structure and reliable work
Active Publication Date: 2016-08-24
CHINA AIRPLANT STRENGTH RES INST
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Problems solved by technology
However, at present, there is no corresponding test device for the dynamic follow-up loading test of the rear fuselage of the aircraft, especially the combined static and dynamic load loading technology of the rear fuselage of the aircraft is a blank in China, and no such test has been done
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[0011] Below by embodiment the present invention will be further described:
[0012] Please also see figure 1 and figure 2 ,in, figure 1 It is a side view of the aircraft rear fuselage dynamic load follow-up loading test device of the present invention, figure 2 It is the front view of the aircraft rear fuselage dynamic load follow-up loading test device of the present invention. The aircraft rear fuselage dynamic load follow-up loading test device of the present invention comprises a vibration table 1, a movable frame 3, a support block 4, a hydraulic cylinder 6, a support seat 9, a base 10, a vertical guide rail 12, a ball head excitation rod 13, Displacement sensor 15. Wherein, the vibrating table 1 is connected with the movable frame 3 through the rotating shafts 2 at both ends. There are support blocks 4 on both sides outside the movable frame 3, the bottom of which is connected with the cylinder piston rod flange 5, and the rotating shafts 8 on both sides of the u...
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The invention belongs to aircraft follow-up loading technology, in particular to a follow-up loading test device for dynamic load of the rear fuselage of an aircraft. The vibration table of the aircraft rear fuselage dynamic load follow-up loading test device of the present invention is connected to the movable frame through the rotating shafts at both ends, and two vertical guide rails are respectively connected to the base at both ends of the movable frame, and a hydraulic actuator is respectively fixed on both sides of the base. The moving cylinder, the piston rod are connected with the movable frame; the hydraulic locking device is installed on the upper end cover of the hydraulic moving cylinder. A hydraulic ball head excitation rod is installed on the moving core of the vibration table, and the head of the hydraulic ball head excitation rod is connected to the rear body. At the same time, the displacement sensor is fixed on the static table surface of the vibration table, and the pull wire is fixed to the rear body. The invention enables the vibration table of the dynamic load follow-up loading test device of the rear fuselage of the aircraft to track the deformation of the rear fuselage at any time, and applies an exciting force to the rear fuselage, and the exciting force is perpendicular to the tangent plane of the loading point of the rear fuselage. Static and dynamic loads are applied in combination, and the test effect is closer to the real situation.
Description
technical field [0001] The invention belongs to the aircraft loading test technology, in particular to a dynamic load follow-up loading test device for the rear fuselage of the aircraft. Background technique [0002] Because the rear fuselage of the aircraft is subjected to conventional aerodynamic force and sometimes eddy current impact during flight, in order to simulate the load of the rear fuselage more realistically, static and dynamic loads should be applied to the rear fuselage at the same time. However, at present, there is no corresponding test device for the dynamic follow-up loading test of the rear fuselage of the aircraft, especially the combined static and dynamic load loading technology of the rear fuselage of the aircraft is a blank in China, and no such test has been done. Contents of the invention [0003] The purpose of the present invention is: to provide a kind of load that can realize static load, dynamic load combination, especially the follow-up loa...
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IPC IPC(8): G01M7/02
Inventor 白钧生王宏利段宝利杨海黄文超王雪梅徐晓东李鹏
Owner CHINA AIRPLANT STRENGTH RES INST