Windshield durability testing device

Abstract

The invention relates to a windshield durability testing device. The windshield durability testing device comprises a test box (11), a clamping device (13) used for clamping a windshield and a control system (12) connected with the test box (11), wherein the test box (11) comprises a first working chamber (111) and a second working chamber (112); the clamping device (13) is located between the first working chamber (111) and the second working chamber (112). The windshield durability test device can be suitable for durability tests of various types of windshields, can simulate the windshield outer side environment and the windshield inner side environment suffered by the windshield in the flight process of an airplane, and is beneficial to checking the capability of the windshield to bear long-time multi-factor environmental stress and effectively verifying the durability of the windshield.

Description

technical field [0001] The invention relates to a test device, in particular to a windshield durability test device. Background technique [0002] The aircraft windshield durability test is mainly used to simulate the environment outside the windshield (outside the cabin) and inside the windshield (inside the cabin) of the windshield during the flight of the aircraft, and to assess the ability of the windshield to withstand long-term multi-factor environmental stress. During the flight of the aircraft, the inner side of the windshield (in the cabin) is generally a room at normal temperature and pressure, and the outer side is the high-altitude atmospheric environment (outside the cabin). The main stresses on the windshield include aerodynamic load (pressure difference), temperature, and temperature shock. Among them, the aerodynamic load is the pressure generated by the airflow impact on the windshield, the temperature is the ambient temperature outside the windshield (outsi...

AI Technical Summary

Problems solved by technology

However, the windshield durability test equipment in foreign countries has the following problems: the load range of the aerodynamic pressure difference is small, the control accuracy of the load change is low, and the aerodynamic load is not uniform at each position on the windshield surface; the use of positive pressure airflow destroys the cabin temperature balance, The temperature control accuracy of the outer surface of the windshield is low; the impact of low temperature cannot effectively simulate the impact of water mist in the cloud layer on the windshield

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