Fatigue Life Prediction for Aircraft Engine Piston Via Different Temperature

CSME 2025/02
Volume 46 No.1 : 73-82

Fatigue Life Prediction for Aircraft Engine Piston Via Different Temperature

Tao-Tao Cheng ^a, Xin-Tian Liu ^b, Miao Liu ^c and Kai Jin ^d
^aGraduate Student, Department of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai, Shanghai 201620, China.
^bProfessor, Department of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai, Shanghai 201620, China.
^cLecturer, Department of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai, Shanghai 201620, China.
^dGraduate Student, Department of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai, Shanghai 201620, China.

Abstract: The finite element calculation method of the piston was investigated with the piston as the research object. The method of setting the boundary conditions of the piston temperature field is determined. Structural analysis software is utilized to conduct a numerical analysis of the temperature and stress fields of the piston. The quality loss model examines the correlation between temperature and piston quality loss. The research and analysis can provide a more indepth understanding of the heat of the piston and provide an accurate theoretical basis for optimal design, such as reducing heat load and improving stress distribution. It can be used for failure analysis of aircraft engine pistons, etc. to enhance the reliability and longevity of aviation piston engines.

Keywords: piston, thermo-mechanical coupling, quality loss, temperature field.

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*Corresponding author; e-mail: xintianster@gmail.com

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