Separation Characteristics of the Electrical Plug Mechanism for Aircraft Storage and Transportation Integrated Devices

HAO Yuchen; YU Zhe; LI Yulin; ZHANG Baogang; QIN Xufeng; LI Weiwei; YU Liujian

doi:10.7643/ issn.1672-9242.2026.05.005

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (5) : 36-43. DOI: 10.7643/ issn.1672-9242.2026.05.005

Aviation and Aerospace Equipment

Separation Characteristics of the Electrical Plug Mechanism for Aircraft Storage and Transportation Integrated Devices

HAO Yuchen¹, YU Zhe¹, LI Yulin^1,*, ZHANG Baogang¹, QIN Xufeng², LI Weiwei¹, YU Liujian¹

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Abstract

The work aims to investigate the separation characteristics of the storage and transportation integrated device under launch conditions. A separation test platform was established to verify the separation characteristics of the electrical plug of the storage and launch integrated device under launch conditions. Kinematic theoretical analysis and multi-body dynamics simulation were further carried out to identify the key affecting factors of separation characteristics together with their action mechanisms. During the high-speed separation process of the canister and missile, the electrical plug mechanism failed to separate properly and sustained multiple structural damages, leading to localized damage to the storage device and the aircraft. An analysis of the coordination of the electrical plug mechanism revealed that the primary cause of failure was the jamming of the electrical plug housing into the floating seat hole during translational motion. Based on the test results, corresponding mechanism optimizations were carried out with theoretical analysis methods. Subsequently, dynamic simulations of the mechanism and post-optimization tests were performed. At this stage, the plug mechanism separated smoothly and functioned properly, thereby verifying the rationality of the optimized design of the electrical plug mechanism. The combination of theoretical research, numerical simulation and experimental tests enables effective identification of critical factors affecting the normal motion of the electrical plug mechanism, thus providing important data support for subsequent reliability analysis of the storage and transportation integrated device.

Key words

high-speed aircraft / storage and transportation integrated device / high-speed separation test / electrical plug mechanism / separation characteristics

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HAO Yuchen, YU Zhe, LI Yulin, ZHANG Baogang, QIN Xufeng, LI Weiwei, YU Liujian. Separation Characteristics of the Electrical Plug Mechanism for Aircraft Storage and Transportation Integrated Devices[J]. Equipment Environmental Engineering. 2026, 23(5): 36-43 https://doi.org/10.7643/ issn.1672-9242.2026.05.005

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Funding

National Key R&D Program of China (2022YFB3705304); National Defense Basic Research Program; Qian Xuesen Youth Innovation Fund of CASC (QXSCXJJ2023048)