A method for tailoring the low temperature test conditions of the whole aircraft in the laboratory

Abstract

The invention discloses a method for tailoring low-temperature test conditions of a complete aircraft in a laboratory, comprising the steps of: 1. special temperature screening of an external low-temperature environment; 2. quantitative analysis of the performance of key motion mechanisms of the aircraft in the external low-temperature environment; 3. low-temperature test Preliminary tailoring of conditions; 4. Draw the curve of the performance change of the aircraft's key motion mechanisms under the test temperature of the low temperature environment in the field; 5. Quantitative measurement of the performance of the aircraft's key motion mechanisms in the low temperature environment in the laboratory; The curve of the performance change at the low temperature environmental test temperature in the laboratory; 7. The fitting of the corresponding first curve and the second curve; 8. R-square test for goodness of fit. The invention integrates the action mechanism of the low temperature test on the whole aircraft into the tailoring process, and deeply considers the equivalence analysis and environmental test verification of the natural environment in the outer field and the laboratory in the inner field, and realizes the effective expansion of the tailoring method and thinking, which is real and reasonable.

Description

technical field [0001] The invention belongs to the technical field of tailoring the low-temperature test conditions of the complete aircraft, and in particular relates to a cutting method for the low-temperature test conditions of the complete aircraft in a laboratory. Background technique [0002] The existing aircraft climate test is carried out under the simulated environmental conditions in the climate experiment cabin, such as high temperature, low temperature, rain, fog, snowfall, freezing rain, icing and solar radiation and other typical climate environments, according to the specified conditions and test sequence , let the test aircraft withstand various climatic and environmental stresses, so as to assess its environmental adaptability. The climate test generally takes a full-state aircraft as the test object, and fixes the aircraft at the corresponding position on the ground of the laboratory through brakes, wheel chocks or mooring devices, and usually requires th...

AI Technical Summary

Problems solved by technology

This is a general method for environmental test design of ordinary products. It is not suitable for full-state aircraft. The temperature range of the entire aircraft is about 70°C. Low temperature tests are costly and ineffective. The temperature range needs to be tailored. Existing research on tailoring technology for low-temperature testing of complete aircraft in the laboratory is rarely carried out

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