Summary

This paper presents a modified Prandtl's model for predicting the bearing capacity of lunar soil under extraterrestrial gravity. The model was developed using DEM simulations and validated with experimental data under different gravity fields. The results show the model predicts bearing capacities within 50% error of experimental data. The paper presents a modified version of Prandtl's theory to predict the aerodynamic characteristics of a flat plate in supersonic flow. The modification accounts for the effects of compressibility and the resulting changes in the boundary layer behavior. The results are compared with experimental data and show good agreement, validating the proposed model. The paper presents a modified version of the Prandtl-Ishlinskii (PI) model to enhance its performance in hysteresis modeling and control. The proposed model incorporates a nonlinear damping term and a saturation function to better capture the hysteresis behavior of smart actuators. The effectiveness of the modified model is validated through simulations and experiments on a piezoelectric actuator. The results demonstrate that the modified PI model provides improved accuracy and robustness compared

Methods and applications