Study on icing environment of typical civil aircraft boarding gate

In order to verify the compliance requirements of typical civil aircraft cabin doors to airworthiness provisions in cold weather, a high and low temperature experimental cabin was built with the boarding door as the research object. The freezing opening test of the cabin door's inner handle and outer handle was carried out by means of rain in a low temperature environment. It is found that the ice surface faults are orderly, there is no stuck and no noise during the test, the mechanism is intact, and the hatch door can be closed normally. The opening time of the inner handle after icing is 6.17 s, which meets the requirements of the airworthiness clause. The test results can provide a basis for the design index of the model gate under the icy environment.