Multi-degree-of-freedom testing device

Abstract

The invention relates to a multi-degree-of-freedom testing device. The device is composed of a two-degree-of-freedom parallel testing test bench and a multi-wheel centering rolling test bench. The multi-wheel centering rolling test bench is arranged on the two-degree-of-freedom parallel testing test bench and fixedly connected with the two-degree-of-freedom parallel testing test bench, and the multi-wheel centering rolling test bench is used for simulating rotation in the horizontal axis direction. The multi-wheel centering rolling test bench is composed of two driving rings and one rolling body, the driving rings comprise an upper ring and a lower ring, the lower ring is fixedly arranged on the two-degree-of-freedom parallel testing test bench, the upper ring and the lower ring are connected together through a rotating shaft, and the driving rings are used for clamping the rolling body. By adding the multi-wheel centering rolling test bench, rolling in the horizontal axis direction is added on the basis of rotation in the horizontal axis direction, an aircraft fuel tank in the motion state is simulated through the rolling body, the fuel tank state in the simulated flight state is improved, and precious reference data are provided for fuel tank design.

Description

technical field [0001] The invention relates to the technical field of mechanical control, in particular to a multi-degree-of-freedom testing device. Background technique [0002] It goes without saying that the design of the aircraft fuel tank plays a very important role in the flight process, but at present, the existing technology lacks a simple and feasible operation structure that provides data for the design and improvement of the aircraft fuel tank. [0003] During the flight, the state of the aircraft is usually diversified, such as turbulence, such as left and right shaking, turning and other flight states, but due to the particularity of the aircraft operation, the aircraft rotation mode is usually not generated, but in fighter jets Instead, the flight regime is applied such that prior testing of fuel tank designs for fighter jets involves rotational flight patterns. [0004] But the platform of existing simulated flight state has a lot of different flight modes, ...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides a kind of multi-degree-of-freedom test device, can solve the single problem of increasing flight state simulation mode

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