A method for high acceleration stress screening of anti-skid brake control box

Abstract

The invention relates to an anti-sliding brake control box high-acceleration stress sieving method. Three comprehensive test devices are adopted, working currents are added into an anti-sliding brake control box in a test scheme, stoppage is stimulated under the common action of environment stress and the working currents and a more comprehensive improvement measure is obtained. The green effects of saving resources and time are achieved in developing the anti-sliding brake control box. By means of a high-acceleration stress sieving test profile of the anti-sliding control box, data formulating is achieved according to a high-acceleration service life test. A formulation principle is that stoppage of the anti-sliding brake control box is sieved without damaging the anti-sliding brake control box. Under the conditions, the high-acceleration stress sieving profile is composed of high temperature, low temperature, temperature vibration, vibration and the working currents. Effectiveness and safety of the test profile are verified and then the test profile can be applied to high-acceleration environment stress sieving in production to replace normal sieving in GJB1032 electronic product environment stress sieving.

Description

technical field [0001] The invention relates to the field of high-acceleration stress screening of transport aircraft electronic products, in particular to a method for high-acceleration stress screening of an aircraft anti-skid brake control box by using three comprehensive equipment. Background technique [0002] The high-accelerated stress screening technology for electronic products comes from the GMW8287 "Highly Accelerated Life, Highly Accelerated Stress Screening and Sampling Inspection" standard of General Motors Corporation of the United States, referred to as HASS, which is an advanced foreign electronic product screening method. Common Screening Method for Substitute Electronics, abbreviated as ESS. Common screening methods follow the MIL-STD-2164 "Electronic Equipment Environmental Stress Screening Method" standard. HASS is a special screening technology for electronic products. The screening technology of a product is only applicable to this type of product and...

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Problems solved by technology

[0023] d) The vibration frequency is distributed in the frequency range of 10Hz to 10000Hz, suitable for HALT / HASS tests of components and printed plates. The weight of the anti-skid brake control box is between 2kg and 9kg, and the sensitive frequency is concentrated at 150Hz to 250Hz. In the low frequency area, therefore, for heavy anti-skid brake control boxes, the effect of stimulating faults is not as good as that of the three comprehensive experimental equipment;

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