A rapid method to predict biaxial fatigue life of automotive wheels using proper orthogonal decomposition and radial basis function algorithm

• Published in: Advances in engineering software (1992) Vol. 186; p. 103543
• Main Authors: Luo, Jintao, Shan, Yingchun, Liu, Xiandong, Zhang, Yue, Jiang, Er, Kong, Decai
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.12.2023
• Subjects: Biaxial wheel fatigue test; Proper orthogonal decomposition; Radial basis function; Reduced order model; Tire-rim interface forces; Radial basis function; Proper orthogonal decomposition; Tire-rim interface forces; Biaxial wheel fatigue test; Reduced order model
• ISSN: 0965-9978
• DOI: 10.1016/j.advengsoft.2023.103543

•A rapid method based on proper orthogonal decomposition and radial basis function is presented for wheel fatigue evaluation.•The computational efficiency in predicting wheel fatigue life under biaxial load spectrum is significantly improved.•The accuracy of the method in the calculation of wheel stresses and fatigue life is proven by experimental results. This paper presents a rapid method for predicting the biaxial fatigue life of automotive wheels using a combination of proper orthogonal decomposition and radial basis function algorithm. Currently, numerical simulations of biaxial fatigue tests are being developed to evaluate wheel performance. However, these simulations are computationally expensive due to the need to simulate multiple discrete loading cases within a given biaxial spectrum. To address this issue, we propose a novel approach that utilizes proper orthogonal decomposition and radial basis function algorithm to improve computational efficiency. By leveraging high-fidelity simulation results from a small number of loading cases, a reduced order model is constructed to accurately predict the tire-rim interface force fields required for wheel strength calculations. The reduced order model significantly reduces the computational time by 65.4% for simulating all loading cases, while maintaining a maximum predicted error of less than 2% compared to the high-fidelity model. Subsequently, the predicted interface forces are mapped onto the rim surface for strength calculation, and the wheel fatigue life is determined using the Brown-Miller multiaxial damage criterion. Comparative analysis with experimental results demonstrates the desirable accuracy of our method in simulating the stress-strain history, crack initiation position, and minimum fatigue life of the wheel. Overall, the proposed method offers a powerful tool for the rapid fatigue analysis of spectrum-loaded wheels, providing an efficient and accurate means of predicting biaxial fatigue life.