Accelerated Test Methods for Storage Life Performance Qualification of Electromechanical Equipment

XUE Liangliang; HU Yuqing; ZHENG Hongling; SONG Yue; ZU Xiaomeng; TAO Yuxi

doi:10.7643/issn.1672-9242.2026.04.008

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (4) : 81-89. DOI: 10.7643/issn.1672-9242.2026.04.008

Aviation and Aerospace Equipment

Accelerated Test Methods for Storage Life Performance Qualification of Electromechanical Equipment

XUE Liangliang^*, HU Yuqing, ZHENG Hongling, SONG Yue, ZU Xiaomeng, TAO Yuxi

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Abstract

To address the challenges in evaluating storage life indicators for electromechanical equipment and the difficulties in performance qualification phases, the work aims to propose an accelerated test modeling method for the storage life qualification of complete equipment and comprehensively take raw materials into consideration beyond electronic components and establish the model based on underlying characteristic parameters. Through the analysis of storage-sensitive stresses and weak links in the complete machine, the vulnerable components and raw materials affecting storage performance were identified. By integrating storage life data of components and raw materials, based on the series model, a comprehensive analysis of the acceleration factor for electromechanical products was conducted starting from the definition of the acceleration factor. Finally, combined with the accelerated ground qualification tests of components, raw materials and complete machine, a performance qualification test scheme for the storage life of the complete machine was proposed. Based on the practical application case analysis of accelerated storage life qualification tests for the servo mechanism of a typical electromechanical product, the effectiveness of the proposed storage life qualification scheme was verified. Compared to previous methods that solely takes components to account, this method integrates key raw materials, resulting in a more reasonable acceleration factor for the complete machine, which reduces the qualification test time and enhances the credibility of the test results.

Key words

electromechanical product / storage life qualification / complete machine acceleration factor / weak raw materials / weak components / accelerated test

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XUE Liangliang, HU Yuqing, ZHENG Hongling, SONG Yue, ZU Xiaomeng, TAO Yuxi. Accelerated Test Methods for Storage Life Performance Qualification of Electromechanical Equipment[J]. Equipment Environmental Engineering. 2026, 23(4): 81-89 https://doi.org/10.7643/issn.1672-9242.2026.04.008

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