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Multimodal transient topology optimization design of heat dissipation structure in electric aircraft power cabin

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  • Wang, Shibo
  • Li, Peimiao
  • Wang, Hui
  • Feng, Yun
  • Li, Hongliang

Abstract

High power density electronic devices are widely installed in electric aircraft power cabin with finite space, which causes the heat to be dissipated difficultly. In this work, a multimodal transient topology optimization model based on the weight coefficient method is proposed to obtain a lightweight and efficient heat dissipation structure in electric aircraft power cabin. The proposed topology optimization model can consider all flight envelope including takeoff, cruise and landing processes. The effect of the topology weight coefficient on the heat dissipation capacity in all flight envelope is investigated. Results show that the heat dissipation efficiency of the topology optimization structure can be improved by 11.25%, 9.18%, and 11.27% in the takeoff, cruise and landing processes compared with that of the conventional heat dissipation structure, respectively. Increasing the topology weight coefficient by 6.67% can result in an 3.47% improvement in the heat dissipation efficiency during the takeoff and landing processes. The above findings can be used as a reference for the design of the lightweight and efficient heat dissipation structure in electric aircraft.

Suggested Citation

  • Wang, Shibo & Li, Peimiao & Wang, Hui & Feng, Yun & Li, Hongliang, 2024. "Multimodal transient topology optimization design of heat dissipation structure in electric aircraft power cabin," Applied Energy, Elsevier, vol. 371(C).
    • Handle: RePEc:eee:appene:v:371:y:2024:i:c:s0306261924011127
    DOI: 10.1016/j.apenergy.2024.123729
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    References listed on IDEAS

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