Equipment Operational Environment Characterization and Worthiness Analysis Methods

WU Zhuoyuan; REN Zhanpeng; ZHOU Chuanlei; LIU Libin; TIAN Peiqiang; WU Jingtao

doi:10.7643/issn.1672-9242.2026.06.004

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (6) : 42-55. DOI: 10.7643/issn.1672-9242.2026.06.004

Aviation and Aerospace Equipment

Equipment Operational Environment Characterization and Worthiness Analysis Methods

WU Zhuoyuan¹, REN Zhanpeng¹, ZHOU Chuanlei², LIU Libin², TIAN Peiqiang¹, WU Jingtao¹

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Abstract

The work aims to propose a systematic methodology comprising "environmental characterization, multi-level response analysis, and coupled failure mechanism revelation" to enhance the whole-life-cycle reliability of equipment operating in complex service environments, and to address the critical issues of unclear failure mechanisms and difficult-to-determine environmental sensitivity parameters under typical severe conditions including frigid, desert, coastal, and plateau regions. Based on China's typical geographical and climatic characteristics, four major environmental zones were delineated, and core environmental parameters were extracted. Through multidisciplinary cross-analysis, a multi-level analytical method was established for equipment structural characteristics, mechanism functionality, and system performance environmental response, and a multi-field coupling mapping relationship was constructed between the three-tier environmental characterization framework of "environmental zone-environmental type-environmental parameter" and the four-tier equipment hierarchy of "equipment type-subsystem-component-performance indicator". The multi-physics coupling failure mechanisms affecting the structural integrity, kinematic reliability of mechanisms, and functional stability of transport/fighter aircraft systems under various environmental parameters were elucidated. Key response patterns were revealed, including low-temperature capacity fade and high-temperature thermal runaway of UAV batteries, motor wear caused by sand and dust, low-temperature propellant embrittlement in missiles, and reduced combustion efficiency under plateau hypobaric conditions. The multi-field coupling mapping relationship established herein provides systematic guidance for the forward design of equipment environmental worthiness, offering theoretical underpinning and technical pathways for enhancing equipment whole-life-cycle reliability across global multi-dimensional battlefield environments.

Key words

multi-field coupling / environmental worthiness / failure mechanism / aeronautical equipment / whole-life cycle of equipment

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WU Zhuoyuan, REN Zhanpeng, ZHOU Chuanlei, LIU Libin, TIAN Peiqiang, WU Jingtao. Equipment Operational Environment Characterization and Worthiness Analysis Methods[J]. Equipment Environmental Engineering. 2026, 23(6): 42-55 https://doi.org/10.7643/issn.1672-9242.2026.06.004

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