Simulation testing device used for air vehicle rudder transmission mechanism

Abstract

The invention discloses a simulation testing device used for an air vehicle rudder transmission mechanism. The simulation testing device provided by the invention is used for simulation testing on performance of the rudder transmission mechanism in a high and low temperature environment. According to the invention, non-vacuum heat insulation material and an inner support are adopted for making a flexible heat insulation cavity. Static pressure cavities are arranged at an inlet and an outlet of a flexible non-vacuum environment test cavity, so that high temperature nitrogen and low temperature nitrogen flow into the flexible non-vacuum environment test cavity uniformly. In the flexible non-vacuum environment test cavity, uniform high temperature simulation environment or low temperature simulation environment are realized. A loading test device is mounted outside the flexible non-vacuum environment test cavity and a sealing film box structure is mounted in the flexible non-vacuum environment test cavity. A hydraulic pressure motor drives a loading connection rod to cooperate with movement of a control surface to be detected. At the same time, sealing treatment is performed between the connection rod and the flexible non-vacuum environment test cavity, so that heat insulation performance of the cavity is improved. The simulation testing device is simple in structure, and reduces testing cost and improves space utilization rate.

Description

technical field [0001] The invention belongs to the field of aircraft ground testing and testing, and in particular relates to a ground simulation testing device for performance testing of a rudder drive mechanism in a high and low temperature environment for an aerospace vehicle. Background technique [0002] A space vehicle is a vehicle that can fly both inside and outside the atmosphere. In addition to being exposed to harsh temperature environments in the space environment, during the process of crossing the atmosphere and returning to re-entry, it has to experience thousands of degrees of high temperature and rapid temperature changes, up to 1800 degrees Celsius. Therefore, in the research and design process of aerospace vehicles, it is very necessary to conduct reliable and effective ground simulation temperature tests. Heat insulation tiles made of external composite materials are usually used to ensure that the airborne equipment works at a suitable temperature. How...

AI Technical Summary

Problems solved by technology

Patent CN104670523 discloses "a high and low temperature environment simulation test equipment". The test equipment adopts a box-type test environment for static testing of products. limited, poor versatility

In the patent CN104588135, "a cabin structure in a large-scale high and low temperature environment simulation test box" is proposed. In order to solve the test of large equipment, the structure utilizes square steel, corrugated board, and glass fiber reinforced plastic to realize a large-scale simulation test box; the cost is relatively high. High, low space utilization, also limited in the measurement of moving devices

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