The Study on Airborne Equipments Life Prediction Based on the Finite Element Simulation under Comprehensive Stress

Abstract:

To predict an airborne equipment lifetime with finite element simulation method, use ANSYS and Flothem, respectively, to analysis vibration stress and temperature stress, corrected by kinetic experiment; then import the results into the failure prediction software-CALCE PWA, set the intensity and duration of stress according to its mission profile, finally get the component failure life prediction results under comprehensive temperature and vibration stress; extract the Monte-Carlo simulation data, use the single point of failure distribution fitting, fault clustering and multipoint distribution fusion method to get the board and the whole machines lifetime and reliability prediction. The design refinement suggestion of the airborne equipment is given at the end of the conclusion.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 224-228
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.224
• Online since: August 2013
• Authors: Tian Ma, Chuan Ri Li, Shuang Long Rong
• Keywords: Finite Element (FE) Simulation, Life Prediction, Temperature Stress, Vibration

References

[1] Petyt M. Introduction to finite element vibration analysis[M]. Cambridge university press, (2010).

[2] Liu L, Li Chuanri. Random Vibration Structure Fatigue Analysis Based on Finite Element Simulation[J], Jounral of Vibration and Shock, (2012).

[3] Stolarski T, Nakasone Y, Yoshimoto S. Engineering analysis with ANSYS software[M]. Butterworth-Heinemann, (2011).

[4] Robin Alstari Amy, Guglielmo S. Aglietti, Guy Richardson. Accuracy of simplified printed circuit board finite element models[J]. Microelectronics Reliability 2010(50): 86-97.

DOI: 10.1016/j.microrel.2009.09.001

[5] Li Deyong, Yao Weixing. Nominal stress approach for life prediction of notched specimens under vibration loading[J]. Acta Aeronautica et Astronautica Sinica, 2011, 32(11): 2036-(2041).

[6] Jeong Kim, Joo-Cheol Yoon, Beom-Soo Kang. Finite element analysis and modeling of Structure with bolted joints[J]. Applied Mathematical Modeling, 2007, 31, 895-911.

DOI: 10.1016/j.apm.2006.03.020

[7] Hatch M R. Vibration simulation using MATLAB and ANSYS[M]. CRC Press, (2001).

[8] Miner M.A. Cumulative damage in fatigue[J]. Journal of Applied Mechanics Review, 1945 (3): 159-164.

[9] Fatemi A, Yang L. Cumulative fatigue damage and life prediction theories: a survey of the state of the art for homogeneous materials[J]. International Journal of Fatigue, 1998, 20(1): 9-34.

DOI: 10.1016/s0142-1123(97)00081-9