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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (S2): 729306-729306.doi: 10.7527/S1000-6893.2023.29306

• Icing and Anti/De-icing • Previous Articles     Next Articles

Simulation of electro-impulse de-icing considering ice fracture and interface debonding

Yongjie HUANG1,2, Zhangsong NI1(), Jie PAN1   

  1. 1.Chengdu Fluid Dynamics Innovation Center,Chengdu 610010,China
    2.National Key Laboratory of Aerodynamics Science and Technology for Aerospace Flight,Mianyang 621000,China
  • Received:2023-07-11 Revised:2023-07-16 Accepted:2023-07-25 Online:2023-08-07 Published:2023-08-04
  • Contact: Zhangsong NI E-mail:nzscczx@163.com
  • Supported by:
    National Natural Science Foundation of China(12132019)

Abstract:

Electro-impulse de-icing systems offer numerous advantages, such as lightweight construction, low energy consumption, and high efficiency, which make them highly promising in the field of aircraft de-icing applications. Drawing on the principles of damage mechanics, this paper takes into account the effects of interface delamination, ice layer fracture, and crack propagation on ice removal mechanisms. A finite element model for electro-impulse de-icing is developed, and transient dynamic simulations of the electro-impulse de-icing process are conducted. By comparing the simulation model with experimental results, it is demonstrated that the proposed model provides more accurate and reasonable predictions than traditional models, offering a new, precise simulation approach for designing electro-impulse de-icing systems. Furthermore, the study delves deeply into a series of key parameters affecting ice removal, including ice layer fracture strength, fracture energy, normal adhesive strength at the ice/skin interface, and shear adhesive strength. The findings show that the most significant factor influencing electro-impulse de-icing efficiency is the shear strength at the ice/skin interface. These findings contribute to the design of composite anti-icing and de-icing systems, ultimately leading to higher de-icing efficiency.

Key words: electro-impulse de-icing, ice fracture, interface debonding, finite element model, fracture energy

CLC Number: