Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 201-220 of 1710
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On Practical Aspects of Variational Consistency in Contact Dynamics
(The American Society of Mechanical Engineers (ASME), 5/4/2023 1)Usage of contact mechanics methodologies is a pervasive modeling requirement in dynamic simulations. While for some trivial problems, solutions taken from analytical geometry are available, use of a finite element framework ... -
A pnh-Adaptive Refinement Procedure for Numerical Optimal Control Problems
(The American Society of Mechanical Engineers (ASME), 5/4/2023 1)This paper presents an automatic procedure to enhance the accuracy of the numerical solution of an optimal control problem (OCP) discretized via direct collocation at Gauss–Legendre points. First, a numerical solution is ... -
A Python Implementation of a Robust Multi-Harmonic Balance With Numerical Continuation and Automatic Differentiation for Structural Dynamics
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )This work presents a tool that performs simulations in nonlinear vibration analysis. It can be used to appraise the structure's functionality and to determine the loading effects. Oscillations are fundamental in nature, ... -
Strong Resonance Bifurcations in a Discrete-Time In-Host Model With a Saturating Infection Rate
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )Viral blips are a recurrent pattern observed in many persistent infections such as the human immunodeficiency virus (HIV). The main goal of this research is to present a comprehensive analytical study of a two-dimensional ... -
Hierarchical MPM-ANN Multiscale Terrain Model for High-Fidelity Off-Road Mobility Simulations: A Coupled MBD-FE-MPM-ANN Approach
(The American Society of Mechanical Engineers (ASME), 4/6/2023 1)A new hierarchical multiscale terrain model is developed using the material point method (MPM) to enable effective modeling of large terrain deformation for high-fidelity off-road mobility simulations. Unlike the Lagrangian ... -
Topology Design and Optimization of Modular Soft Robots Capable of Homogenous and Heterogenous Reconfiguration
(The American Society of Mechanical Engineers (ASME), 4/28/2023 )The deformability of soft material robots provides them with the ability to transform between complex shapes and forms. This unique ability facilitates Modular Soft Robots (MSoRos) to assemble and reconfigure into different ... -
FSTSMC Compliance Control for Dual-Arm Space Robot With SDBD Capture Satellite Operation
(The American Society of Mechanical Engineers (ASME), 4/17/2023 )A space robot inevitably impacts a satellite in a capture operation. If its fragile joints are not protected, they may be damaged, resulting in failure of the capture operation. Thus, a spring damper buffer device (SDBD) ... -
Using a Bayesian-Inference Approach to Calibrating Models for Simulation in Robotics
(The American Society of Mechanical Engineers (ASME), 4/8/2023 1)In robotics, simulation has the potential to reduce design time and costs, and lead to a more robust engineered solution and a safer development process. However, the use of simulators is predicated on the availability of ... -
Variational Principles for the Trajectory Tracking Control of Underactuated Mechanical Systems
(The American Society of Mechanical Engineers (ASME), 4/6/2023 1)Robotics is undergoing dynamic progression with the spread of soft robots and compliant mechanisms. The mechanical models describing these systems are underactuated, having more degrees-of-freedom than inputs. The trajectory ... -
Joint Special Issue: Design and Control of Responsive Robots
(The American Society of Mechanical Engineers (ASME), 5/5/2023 1)Robots are complex controlled dynamical systems interacting with their environment. Agile robotic systems have been penetrating almost all industrial sectors as the backbone for industrial automation, ranging from heavy ... -
Identification of Motor Control Objectives in Human Locomotion via Multi-Objective Inverse Optimal Control
(The American Society of Mechanical Engineers (ASME), 4/3/2023 1)Predictive simulations of human motion are a precious resource for a deeper understanding of the motor control policies encoded by the central nervous system. They also have profound implications for the design and control ... -
Unconditionally Stable Numerical Scheme for Heat Transfer of Mixed Convective Darcy–Forchheimer Flow of Micropolar Fluid Over Oscillatory Moving Sheet
(The American Society of Mechanical Engineers (ASME), 3/8/2023 1)This contribution proposes a third-order numerical scheme for solving time-dependent partial differential equations (PDEs). This third-order scheme is further modified, and the new scheme is obtained with second-order ... -
Computational Analysis of Fractional Liénard's Equation With Exponential Memory
(The American Society of Mechanical Engineers (ASME), 3/7/2023 1)The fractional model of Liénard's equations is very useful in the study of oscillating circuits. The main aim of this article is to investigate a fractional extension of Liénard's equation by using a fractional operator ... -
Atangana–Baleanu Semilinear Fractional Differential Inclusions With Infinite Delay: Existence and Approximate Controllability
(The American Society of Mechanical Engineers (ASME), 12/20/2022)The main focus of this paper is centered around approximate controllability results of Atangana–Baleanu fractional differential systems with infinite delay. Using principles and ideas from the theory of multivalued maps, ... -
Constrained Large-Displacement Thermal Analysis
(The American Society of Mechanical Engineers (ASME), 12/12/2022)Two different cases are encountered in the thermal analysis of solids. In the first case, continua are not subject to boundary and motion constraints and all material points experience same displacement-gradient changes ... -
On the Periodicity of the Rational Dynamical System Corresponding to the Vannimenus–Ising Model
(The American Society of Mechanical Engineers (ASME), 11/17/2022)The universal behaviors of a rational dynamical system associated with the Vannimenus–Ising model having two coupling constants on a Cayley tree of order three are studied. Cobweb diagrams and related map iterates for some ... -
Stability Analysis of a One Degree of Freedom Robot Model With Sampled Digital Acceleration Feedback Controller in Turning and Milling
(The American Society of Mechanical Engineers (ASME), 2023)This study is interested in the stability of robots in machining. The goal is to improve the dynamic performance of robots using an additional acceleration signal fed back through the conventional built-in proportional-derivative ... -
Evaluation and Modification of Kinetic Gas Collision Theory as Applied to Encounter Rate Dynamics for Multi-Robot Groups and Robot Swarms
(The American Society of Mechanical Engineers (ASME), 2023)Robots encountering other robots in a group can be beneficial, e.g., to exchange information, or detrimental, e.g., obstructing one another from operating. Kinetic gas theory (KGT) provides a statistical mechanical analysis ... -
Identification of Asymmetric Bouc–Wen Hysteresis Under Intense Noise by Only Measuring Acceleration
(The American Society of Mechanical Engineers (ASME), 2023)Parameter identification of hysteretic models is significant for predicting structural dynamic response in vibration isolation structures. However, quasi-static testing and displacement measurement methods are not convenient ... -
Real-Time Simulation of Ground Vehicles on Deformable Terrain
(The American Society of Mechanical Engineers (ASME), 2023)Sophisticated modeling and simulation, based on rigid and flexible multibody dynamics, are nowadays a standard procedure in the design and analysis of vehicle systems and are widely adopted for on-road driving. Off-road ...