Mobility evaluation of wheeled robots on soft terrain: Effect of internal force distribution

B Ghotbi, F González, J Kövecses, J Angeles - Mechanism and Machine …, 2016 - Elsevier
Many applications of wheeled robots include operations in unstructured environments.
Optimizing vehicle mobility is of key importance in these cases. Reduced mobility can limit …

Terramechanics-based modeling of sinkage and moment for in-situ steering wheels of mobile robots on deformable terrain

L Ding, H Yang, H Gao, N Li, Z Deng, J Guo… - Mechanism and Machine …, 2017 - Elsevier
The success of NASA's Mars missions has generated a renewed interest in planetary
exploration, along with a need for better mobility of wheeled mobile robots (WMRs) …

Dynamically Feasible Periodic Trajectories for Generic Spatial Three-Degree-of-Freedom Cable-Suspended Parallel Robots1

G Mottola, C Gosselin… - Journal of …, 2018 - asmedigitalcollection.asme.org
Cable-suspended robots may move beyond their static workspace by keeping all cables
under tension, thanks to end-effector inertia forces. This may be used to extend the robot …

A multibody dynamics framework for simulation of rovers on soft terrain

A Azimi, D Holz, J Kövecses… - Journal of …, 2015 - asmedigitalcollection.asme.org
A new framework is developed for efficient implementation of semi-empirical terramechanics
models in multibody dynamics environments. In this approach, for every wheel in contact …

A Cam Clay constitutive relation for semi-analytical elasto-plastic modeling of wheel-soil interaction for fast applications

AH Rahimi, A Azimi, T Goudarzi - Mechanics Based Design of …, 2024 - Taylor & Francis
In this paper, a semi-analytical elasto-plastic (SAEP) model is proposed to simulate wheel
motion on soft soil using a Modified Cam Clay (MCC) constitutive model. The focus is on …

Terrain parameter identification for wheeled mobile robots using deep neural networks

A Bayat, A Azimi, A Taghvaeipour - Mechanics Based Design of …, 2024 - Taylor & Francis
This paper introduces an innovative approach to soil parameter estimation using deep
artificial neural networks (ANN) tailored to estimate a wide range of soil types. Previous …

A novel concept for analysis and performance evaluation of wheeled rovers

B Ghotbi, F González, J Kövecses, J Angeles - Mechanism and Machine …, 2015 - Elsevier
The analysis, design, and operation planning of rovers are often based on predictive
dynamic simulation, where the multibody model of the vehicle is combined with …

Advances in physically-based modeling of deformable soil for real-time operator training simulators

D Holz, A Azimi, M Teichmann - 2015 international conference …, 2015 - ieeexplore.ieee.org
In recent years, realistic simulation of vehicles on soft terrain has increasingly gained
importance due to its use in operator training, mission planning and design. In this work we …

Neural network estimation of soil reaction in rigid wheel and soft terrain interaction based on modified dynamic model

A Bayat, A Azimi, A Taghvaeipour - 2022 10th RSI International …, 2022 - ieeexplore.ieee.org
This study undergoes the application of neural networks in a modified wheel-solid
interaction model. First, a new efficient model for interaction between wheel and soil is …

Input queuing of an internally nonblocking packet switch with two priority classes

JSC Chen, R Guerin - IEEE INFOCOM'89, Proceedings of the Eighth …, 1989 - computer.org
In recent years, realistic simulation of vehicles on soft terrain has increasingly gained
importance due to its use in operator training, mission planning and design. In this work we …