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Understanding the quasi-static fracture formation and evolution is essential for assessing the mechanical properties and structural load-bearing capacity of materials. Peridynamics (PD) provides an effective computational method to depict…

Numerical Analysis · Mathematics 2024-10-17 Shiwei Hu , Tianbai Xiao , Mingshuo Han , Zuoxu Li , Erkan Oterkus , Selda Oterkus , Yonghao Zhang

Automatic 3D content creation has gained increasing attention recently, due to its potential in various applications such as video games, film industry, and AR/VR. Recent advancements in diffusion models and multimodal models have notably…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Yitong Wang , Xudong Xu , Li Ma , Haoran Wang , Bo Dai

We propose VRGym, a virtual reality testbed for realistic human-robot interaction. Different from existing toolkits and virtual reality environments, the VRGym emphasizes on building and training both physical and interactive agents for…

Human-Computer Interaction · Computer Science 2019-04-04 Xu Xie , Hangxin Liu , Zhenliang Zhang , Yuxing Qiu , Feng Gao , Siyuan Qi , Yixin Zhu , Song-Chun Zhu

A rigid-flexible manipulator may be assigned tasks in a moving environment where the winds or vibrations affect the position and/or orientation of surface of operation. Consequently, losses of the contact and perhaps degradation of the…

Robotics · Computer Science 2007-05-23 Atef A. Ata , Habib Johar

Optimal control problems are formulated and efficient computational procedures are proposed for combined orbital and rotational maneuvers of a rigid body in three dimensions. The rigid body is assumed to act under the influence of forces…

Optimization and Control · Mathematics 2016-11-15 Taeyoung Lee , N. Harris McClamroch , Melvin Leok

This paper presents a unified approach for inverse and direct dynamics of constrained multibody systems that can serve as a basis for analysis, simulation, and control. The main advantage of the formulation of the dynamic is that it does…

Systems and Control · Electrical Eng. & Systems 2022-11-01 Farhad Aghili

The article presents an analysis of the trends in the development of kinematic structures of modern machine-building technological equipment. The prospects of using machines with parallel kinematics in processing, measuring and handling…

Robotics · Computer Science 2020-12-16 M Kubrikov , I Pikalov , M Saramud

We present a novel reinforcement learning method to train the quadruped robot in a simulated environment. The idea of controlling quadruped robots in a dynamic environment is quite challenging and my method presents the optimum policy and…

Robotics · Computer Science 2025-02-25 Nabeel Ahmad Khan Jadoon , Mongkol Ekpanyapong

Preference-based reinforcement learning (PbRL) can enable robots to learn to perform tasks based on an individual's preferences without requiring a hand-crafted reward function. However, existing approaches either assume access to a…

Machine Learning · Computer Science 2024-02-13 Yi Liu , Gaurav Datta , Ellen Novoseller , Daniel S. Brown

Despite significant progress in static protein structure collection and prediction, the dynamic behavior of proteins, one of their most vital characteristics, has been largely overlooked in prior research. This oversight can be attributed…

Biomolecules · Quantitative Biology 2024-09-19 Ce Liu , Jun Wang , Zhiqiang Cai , Yingxu Wang , Huizhen Kuang , Kaihui Cheng , Liwei Zhang , Qingkun Su , Yining Tang , Fenglei Cao , Limei Han , Siyu Zhu , Yuan Qi

Neural control is an exciting mystery which we instinctively master. Yet, researchers have a hard time explaining the motor control trajectories. Physiologically accurate biomechanical simulations can, to some extent, mimic live subjects…

Signal Processing · Electrical Eng. & Systems 2019-12-10 Amir H. Abdi , Masoud Malakoutian , Thomas Oxland , Sidney Fels

Accurately predicting deformable linear object (DLO) dynamics is challenging, especially when the task requires a model that is both human-interpretable and computationally efficient. In this work, we draw inspiration from the pseudo-rigid…

Robotics · Computer Science 2024-10-28 Shamil Mamedov , A. René Geist , Jan Swevers , Sebastian Trimpe

Model-based 3D pose and shape estimation methods reconstruct a full 3D mesh for the human body by estimating several parameters. However, learning the abstract parameters is a highly non-linear process and suffers from image-model…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Jiefeng Li , Chao Xu , Zhicun Chen , Siyuan Bian , Lixin Yang , Cewu Lu

The maritime industry aims towards a sustainable future, which requires significant improvements in operational efficiency. Current approaches focus on minimising fuel consumption and emissions through greater autonomy. Efficient and safe…

We present a modular and thermodynamically consistent modeling framework for simulating steady-state and transient behavior in fixed-bed reactors. Accurate simulation of dynamic reactor behavior is essential for enabling flexible operation…

Dynamical Systems · Mathematics 2026-04-27 Marcus Johan Schytt , John Bagterp Jørgensen

The vast majority of mesh-based modelling applications iteratively transform the mesh vertices under prescribed geometric conditions. This occurs in particular in methods cycling through the constraint set such as Position-Based Dynamics…

Numerical Analysis · Mathematics 2020-11-25 Carlos Arango Duque , Adrien Bartoli

Deformable objects manipulation can benefit from representations that seamlessly integrate vision and touch while handling occlusions. In this work, we present a novel approach for, and real-world demonstration of, multimodal visuo-tactile…

Robotics · Computer Science 2022-10-10 Youngsun Wi , Andy Zeng , Pete Florence , Nima Fazeli

Trajectory segmentation refers to dividing a trajectory into meaningful consecutive sub-trajectories. This paper focuses on trajectory segmentation for 3D rigid-body motions. Most segmentation approaches in the literature represent the…

Robotics · Computer Science 2024-10-28 Arno Verduyn , Maxim Vochten , Joris De Schutter

Accurate post-impact velocity predictions are essential in developing impact-aware manipulation strategies for robots, where contacts are intentionally established at non-zero speed mimicking human manipulation abilities in dynamic grasping…

Robotics · Computer Science 2021-04-01 Ilias Aouaj , Vincent Padois , Alessandro Saccon

Existing shape estimation methods for deformable object manipulation suffer from the drawbacks of being off-line, model dependent, noise-sensitive or occlusion-sensitive, and thus are not appropriate for manipulation tasks requiring high…

Robotics · Computer Science 2018-09-27 Tao Han , Xuan Zhao , Peigen Sun , Jia Pan