Whole aircraft drop simulation predication and testing method

Abstract

The invention relates to a whole aircraft drop simulation predication and testing method. The method comprises whole aircraft drop simulation predication analysis and whole aircraft drop test; a drop height and a pitch angle of a whole aircraft are obtained and are used as state parameters of the whole aircraft drop test; the whole aircraft drop test is carried out according to theoretical simulation predication so as to obtain an acceleration impact environment capable of being borne by equipment on the aircraft in a landing impact process, and provide important test evidences to check the accuracy of test technological conditions of a landing impact mechanical environment; meanwhile, whether indications including designed routes and the like of an undercarriage buffering system under the landing impact environment meet the requirements or not is realized; when a whole aircraft is at an electrified closed loop working state of a GNC (Global Navigation Chart) system, the GNC system has adaptability to a landing large-impact load environment, and important guarantees are provided for the success of an aircraft flying verification test.

Description

technical field [0001] The invention relates to a whole aircraft drop shock simulation prediction and test method, which belongs to the field of aircraft mechanical environment design and large-scale ground test. Background technique [0002] As a new type of mechanical environment for spacecraft, the landing impact environment is an important part of the design of the mechanical environment and one of the main contents of the reliability design of stand-alone products. Therefore, the ground assessment test of the mechanical environment is essential. The development of the aircraft is faced with the contradiction between time and task progress from the beginning to the end. If all the stand-alone tests are completed in sequence according to the normal process, it will be time-consuming and labor-intensive, which will seriously affect the progress. However, this project breaks through the traditional test projects in the aerospace field. The full-aircraft drop test proposed f...

AI Technical Summary

Problems solved by technology

[0003] At the same time, in order to guide the test, it is usually necessary to complete the corresponding theoretical prediction analysis before the test

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