Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 1261-1280 of 1786
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Nonlinear Reduced Order Models for the Structural Dynamics of Combustor Systems With Prestress and Friction
(The American Society of Mechanical Engineers (ASME), 2015)An efficient methodology to capture the nonlinear responses of combustor systems with prestress and Coulomb friction is developed. The combustor systems experience wear at the interfaces between components due to flowinduced ... -
Gear Dynamics Analysis With Turbulent Journal Bearings Mounted Hybrid Squeeze Film Damper—Chaos and Active Control Analysis
(The American Society of Mechanical Engineers (ASME), 2015)The hybrid squeeze film damper mounted turbulent journal bearing–gear system is proposed in this paper. The nonlinear dynamics of a gear pair supported by such bearing is studied. Numerical results show that, due to the ... -
Energy Considerations for Mechanical Fractional Order Elements
(The American Society of Mechanical Engineers (ASME), 2015)This paper considers the energy aspects of fractionalorder elements defined by the equation: force is proportional to the fractionalorder derivative of displacement, with order varying from zero to two. In contrast to the ... -
Performance of a Method for Formulating Geometrically Exact Complementarity Constraints in Multibody Dynamic Simulation
(The American Society of Mechanical Engineers (ASME), 2015)Contemporary problem formulation methods used in the dynamic simulation of rigid bodies suffer from problems in accuracy, performance, and robustness. Significant allowances for parameter tuning, coupled with careful ... -
Direct and Adjoint Sensitivity Analysis of Ordinary Differential Equation Multibody Formulations
(The American Society of Mechanical Engineers (ASME), 2015)Sensitivity analysis of multibody systems is essential for several applications, such as dynamicsbased design optimization. Dynamic sensitivities, when needed, are often calculated by means of finite differences. This ... -
Computing Numerical Solutions of Delayed Fractional Differential Equations With Time Varying Coefficients
(The American Society of Mechanical Engineers (ASME), 2015)Fractional differential equations with time varying coefficients and delay are encountered in the analysis of models of metal cutting processes such as milling and drilling with viscoelastic damping elements. Viscoelastic ... -
Dynamics and Control of a Planar Multibody Mobile Robot for Confined Environment Inspection
(The American Society of Mechanical Engineers (ASME), 2015)In this paper, we study the dynamics of an articulated planar mobile robot for confined environment exploration. The mobile vehicle is composed of n identical modules hitched together with passive revolute joints. Each ... -
Wavelet Based Multifractal Analysis to Periodic Time Series
(The American Society of Mechanical Engineers (ASME), 2015)Many processes are characterized by their oscillating or cyclic time behavior. This holds for rotating machines or alternating currents. The resulting signals are then periodic signals or contain periodic parts. It can be ... -
Dynamics of a Linear Oscillator Coupled to a Bistable Light Attachment: Numerical Study
(The American Society of Mechanical Engineers (ASME), 2015)The conservative and dissipative dynamics of a 2DOF, system composed of a grounded linear oscillator coupled to a lightweight mass by means of both strongly nonlinear and linear negative stiffnesses is investigated. Numerical ... -
Synchronization and Antisynchronization of a Class of Chaotic Systems With Nonidentical Orders and Uncertain Parameters
(The American Society of Mechanical Engineers (ASME), 2015)In this paper, we study the synchronization of a class of uncertain chaotic systems. Based on the sliding mode control and stability theory in fractional calculus, a new controller is designed to achieve synchronization. ... -
Control of Discrete Time Chaotic Systems via Combination of Linear and Nonlinear Dynamic Programming
(The American Society of Mechanical Engineers (ASME), 2015)In this article by introducing and subsequently applying the Min–Max method, chaos has been suppressed in discrete time systems. By using this nonlinear technique, the chaotic behavior of Behrens–Feichtinger model is ... -
Dexterity and Adaptive Control of Planar Parallel Manipulators With and Without Redundant Actuation
(The American Society of Mechanical Engineers (ASME), 2015)The objective of this paper is to determine whether a planar parallel manipulator with redundant actuation has better tracking accuracy than a planar parallel manipulator without redundant actuation. The effects of the ... -
Numerical Detection of Stochastic to Deterministic Transition
(The American Society of Mechanical Engineers (ASME), 2015)We present the numerical estimation of noise parameter induced in the dynamics of the variables by random particle interactions involved in the stochastic chemical oscillator and use it as order parameter to detect the ... -
Aspects of Symbolic Formulations in Flexible Multibody Systems
(The American Society of Mechanical Engineers (ASME), 2014)The symbolic modeling of flexible multibody systems is a challenging task. This is especially the case for complexshaped elastic bodies, which are described by a numerical model, e.g., an FEM model. The kinematic and dynamic ... -
Three Dimensional Beam Theory for Flexible Multibody Dynamics
(The American Society of Mechanical Engineers (ASME), 2014)In multibody systems, it is common practice to approximate flexible components as beams or shells. More often than not, classical beam theories, such as the Euler–Bernoulli beam theory, form the basis of the analytical ... -
A Detailed Derivation of the Velocity Dependent Inertia Forces in the Floating Frame of Reference Formulation
(The American Society of Mechanical Engineers (ASME), 2014)In the case of complex multibody systems, an efficient and timesaving computation of the equations of motion is essential; in particular, concerning the inertia forces. When using the floating frame of reference formulation ... -
Systematic Integration of Finite Element Methods Into Multibody Dynamics Considering Hyperelasticity and Plasticity
(The American Society of Mechanical Engineers (ASME), 2014)This study proposes a systematic extension of a multiflexiblebody dynamics (MFBD) formulation that is based on a recursive formulation for rigid body dynamics. It is extended to include nonlinear plastic and hyperelastic ... -
Determination of Holonomic and Nonholonomic Constraint Reactions in an Index 3 Augmented Lagrangian Formulation With Velocity and Acceleration Projections
(The American Society of Mechanical Engineers (ASME), 2014)Index3 augmented Lagrangian formulations with projections of velocities and accelerations represent an efficient and robust method to carry out the forwarddynamics simulation of multibody systems modeled in dependent ... -
Parallel Computing in Multibody System Dynamics: Why, When, and How
(The American Society of Mechanical Engineers (ASME), 2014)This paper addresses three questions related to the use of parallel computing in multibody dynamics (MBD) simulation. The “why parallel computing?†question is answered based on the argument that in the upcoming decade ... -
Operational Space Formulation and Analysis for Rovers
(The American Society of Mechanical Engineers (ASME), 2014)Many techniques have been developed for analyzing and evaluating mechanical systems for the purpose of improving design and control, such as the operational space formulation. It has been been shown to be a useful tool ...