Estimation methods of nonlinear regression initial parameter values for rubber material properties prediction

作者：Guowei Liang, Jingli Xu, Y.W. Liu, Danyong Wang, LI Shu-hu · 年份：2023 · DOI：10.1145/3653724.3653736 · 研究领域：Fatigue and fracture mechanics、Asphalt Pavement Performance Evaluation、Engineering Structural Analysis Methods

The accurate evaluation of rubber material properties is an important means to ensure the safe use of rubber products. Most of the relationships between rubber characteristic index and time are nonlinear regression models, and the estimation of the initial fitting parameters is an important subject in nonlinear regression analysis. In this paper, several methods of evaluating the initial values of nonlinear regression parameters are studied, and a problem of evaluating the aging properties of rubber materials is solved by applying these principles.