Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 541-560 of 1786
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A Novel Delay-Independent Robust Adaptive Controller Design for Uncertain Nonlinear Systems With Time-Varying State Delay
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, two novel adaptive control strategies are presented based on the linear matrix inequality for nonlinear Lipschitz systems. The proposed approaches are developed by creatively using Krasovskii stability theory ... -
Stability and Hopf Bifurcation of Nearest-Neighbor Coupled Neural Networks With Delays
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, a high-dimensional system of nearest-neighbor coupled neural networks with multiple delays is proposed. Nowadays, most present researches about neural networks have studied the connection between adjacent ... -
A New Approach to Compute Natural Frequencies and Mode Shapes of One-Dimensional Continuous Structures With Arbitrary Nonuniformities
(The American Society of Mechanical Engineers (ASME), 2020)One-dimensional continuous structures include longitudinal vibration of bars, torsional vibration of circular shafts, and transverse vibration of beams. Using the linear time-varying system theory, algorithms are developed ... -
Primary Resonance of Computer Numerical Control Worktable With Clearance and Friction
(The American Society of Mechanical Engineers (ASME), 2020)Computer numerical control (CNC) worktable is the most important part of CNC machines. The CNC worktable exhibits complex nonlinear dynamic behaviors in the milling process. The physical model and mathematical model of CNC ... -
Condition Monitoring of Motor-Gear System Dynamics With Rotor and Gear Faults
(The American Society of Mechanical Engineers (ASME), 2020)An electromechanical system consisting of an electric motor and planetary gear set is modeled and analyzed in this paper. The model integrates various internal excitations including time-varying gear mesh stiffness, nonlinear ... -
On the Positioning of a Piezoelectric Material in the Energy Harvesting From a Nonideally Excited Portal Frame
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, we consider the application of the piezoelectric energy harvesting using a portal frame structure of two-degrees-of-freedom. The piezoelectric material is considered as a linear device using a capacitive ... -
Influence of Two External Excitations for Brake Stick-Slip Behavior Using New Numerical Calculation Method
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, a dynamic brake model has been constructed by incorporating the brake rotor's speed and the brake normal force as excitation sources. By introducing two permissible errors (ε1,2), a novel computation algorithm ... -
Special Issue: Selected Papers From 2019 IDETC-CIE, MSNDC, and VIB Conferences
(The American Society of Mechanical Engineers (ASME), 2020)We are indeed very happy to have had the opportunity to work on this special issue and start what we hope will become an annual tradition. Special thanks to Professor Bala Balachandran for giving us the green light on this ... -
Parametric Resonance of Axially Accelerating Unidirectional Plates Partially Immersed in Fluid
(The American Society of Mechanical Engineers (ASME), 2020)This paper investigates the nonlinear vibration of an axially accelerating moving plate considering fluid–structure interaction. Nonlinear coupled equations of motion are derived by means of Kármán plate theory, the Galerkin ... -
Period-1 to Period-8 Motions in a Nonlinear Jeffcott Rotor System
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, a bifurcation tree of period-1 to period-8 motions in a nonlinear Jeffcott rotor system is obtained through the discrete mapping method. The bifurcations and stability of periodic motions on the bifurcation ... -
Investigating the Nonlinear Dynamics of Human Balance Using Topological Data Analysis
(The American Society of Mechanical Engineers (ASME), 2020)Understanding the mechanisms behind human balance has been a subject of interest as various postural instabilities have been linked to neuromuscular diseases (e.g., Parkinson's, multiple sclerosis, and concussion). This ... -
Nonlinear Dynamics of a Rotary Energy Harvester With a Double Frequency Up-Conversion Mechanism
(The American Society of Mechanical Engineers (ASME), 2020)This paper develops a mathematical model of a two degree-of-freedom piezoelectric energy harvester (PEH) in which vibration is driven by disk swing motion. The proposed device converts slow mechanical rotation into ... -
Reducibility and Analysis of Linear Quasi-Periodic Systems Via Normal Forms
(The American Society of Mechanical Engineers (ASME), 2020)This article introduces a technique to accomplish reducibility of linear quasi-periodic systems into constant-coefficient linear systems. This is consistent with congruous proofs common in literature. Our methodology is ... -
Multibody Dynamics Versus Fluid Dynamics: Two Perspectives on the Dynamics of Granular Flows
(The American Society of Mechanical Engineers (ASME), 2020)Considering that granular material is second only to water in how often it is handled in practical applications, characterizing its dynamics represents a ubiquitous problem. However, studying the motion of granular material ... -
Modeling Contacts and Hysteretic Behavior in Discrete Systems Via Variable-Order Fractional Operators
(The American Society of Mechanical Engineers (ASME), 2020)The modeling of nonlinear dynamical systems subject to strong and evolving nonsmooth nonlinearities is typically approached via integer-order differential equations. In this study, we present the possible application of ... -
Parallelized Multiscale Off-Road Vehicle Mobility Simulation Algorithm and Full-Scale Vehicle Validation
(The American Society of Mechanical Engineers (ASME), 2020)In this work, a scalable parallel computing scheme for the hierarchical multiscale off-road vehicle mobility simulation capability is developed with the hybrid message passing interface (MPI)/OpenMP framework, and it is ... -
A New Approach to Transient Vibration Analysis of Two-Dimensional Beam Structures at Medium and High Frequencies
(The American Society of Mechanical Engineers (ASME), 2020)Transient analysis of medium-frequency (mid-frequency) and high-frequency vibrations plays an important role in the research and development of complex structures in aerospace, automobile, civil, mechanical, and ship ... -
Characterization of the Optimal Damping Coefficient in the Continuous Contact Model
(The American Society of Mechanical Engineers (ASME), 2020)This paper presents an analytical formula to characterize the damping coefficient as a function of system's parameters in a continuous force model of impact. The contact force element consists of a linear damper which is ... -
Nonlinear Response Identification of an Asymmetric Bistable Harvester Excited at Different Bias Angles by Multiscale Entropy and Recurrence Plot
(The American Society of Mechanical Engineers (ASME), 2020)Due to their high sensitivity to excitations with low intensity, bistable energy harvesting systems have received significant attention. In practical applications, it is difficult to achieve a bistable energy harvester ... -
Discontinuous Galerkin Method and Dual-SLERP for Time Integration of Flexible Multibody Dynamics
(The American Society of Mechanical Engineers (ASME), 2020)A novel time-discontinuous Galerkin (DG) method is introduced for the time integration of the differential-algebraic equations governing the dynamic response of flexible multibody systems. In contrast to traditional Galerkin ...