Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 1461-1480 of 1786
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Use of Finite Element and Finite Segment Methods in Modeling Rail Flexibility: A Comparative Study
(The American Society of Mechanical Engineers (ASME), 2012)Safety requirements and optimal performance of railroad vehicle systems require the use of multibody system (MBS) dynamics formulations that allow for modeling flexible bodies. This investigation ... -
Comparison of Methods Analyzing Bifurcation and Hunting of Complex Rail Vehicle Models
(The American Society of Mechanical Engineers (ASME), 2012)The stability assessment is an important task in the mechanical design of railway vehicles. For a detailed model of a railway passenger coach, the hunting behavior depending on the running ... -
Study on Derailment Mechanism and Safety Operation Area of High-Speed Trains Under Earthquake
(The American Society of Mechanical Engineers (ASME), 2012)In order to investigate the derailment mechanism and safety operation area of high-speed trains under earthquake, a coupled vehicle-track dynamic model considering earthquake effect is developed, ... -
Dynamic Analysis of Planetary Gears With Bearing Clearance
(The American Society of Mechanical Engineers (ASME), 2012)This study investigates the dynamics of planetary gears where nonlinearity is induced by bearing clearance. Lumped-parameter and finite element models with bearing clearance, tooth separation, and ... -
Nadal’s Formula and High Speed Rail Derailments
(The American Society of Mechanical Engineers (ASME), 2012)Several railroad vehicle derailment criteria are based on the (L/LVV) ratio where L is the lateral force and V is the vertical force acting on the wheelset. Derailment is assumed to occur ... -
Wave Propagation in Periodic Composites: Higher-Order Asymptotic Analysis Versus Plane-Wave Expansions Method
(The American Society of Mechanical Engineers (ASME), 2011)This work is devoted to a comparison of different methods determining stop-bands in 1D and 2D periodic heterogeneous media. For a 1D case, the well-known dispersion equation is studied via ... -
A Parametric Study on the Baumgarte Stabilization Method for Forward Dynamics of Constrained Multibody Systems
(The American Society of Mechanical Engineers (ASME), 2011)This paper presents and discusses the results obtained from a parametric study on the Baumgarte stabilization method for forward dynamics of constrained multibody systems. The main purpose of ... -
Iterative Learning Control With Switching Gain Feedback for Nonlinear Systems
(The American Society of Mechanical Engineers (ASME), 2011)Iterative learning control (ILC) is a simple and effective technique of tracking control aiming at improving system tracking performance from trial to trial in a repetitive mode. In this paper, ... -
KdV and Kink-Antikink Solitons in an Extended Car-Following Model
(The American Society of Mechanical Engineers (ASME), 2011)An extended car-following model is proposed in this paper by using the generalized optimal velocity function and considering the multivelocity differences. The stability condition of the model ... -
Kinematic Optimization of a Redundantly Actuated Parallel Mechanism for Maximizing Stiffness and Workspace Using Taguchi Method
(The American Society of Mechanical Engineers (ASME), 2011)We present an optimization procedure that uses the Taguchi method to maximize the mean stiffness and workspace of a redundantly actuated parallel mechanism at the same time. The Taguchi method ... -
Time Delay Control for Two van der Pol Oscillators
(The American Society of Mechanical Engineers (ASME), 2011)A method for time delay vibration control of the principal and fundamental resonances of two nonlinearly coupled van der Pol oscillators is investigated Using the asymptotic perturbation method, ... -
Dynamics of Independently Rotating Wheel System in the Analysis of Multibody Railroad Vehicles
(The American Society of Mechanical Engineers (ASME), 2011)In this investigation, dynamic characteristics of independently rotating wheel systems are discussed. To this end, a multibody independently rotating wheelset (IRW) model is developed using the ... -
Direct Linearization via the Gibbs Function
(The American Society of Mechanical Engineers (ASME), 2011)Linearized governing equations are often used in analysis, design, and control applications for dynamical systems. Linearized equations of motion can be formed in either an indirect or direct ... -
Control-Based Continuation of Unstable Periodic Orbits
(The American Society of Mechanical Engineers (ASME), 2011)We present an experimental procedure to track periodic orbits through a fold (saddle-node) bifurcation and demonstrate it with a parametrically excited pendulum experiment where the tracking ... -
Discrete Time Transfer Matrix Method for Dynamic Modeling of Complex Spacecraft With Flexible Appendages
(The American Society of Mechanical Engineers (ASME), 2011)Efficient, precise dynamic analysis for a complex spacecraft has become a research focus in the field of spacecraft dynamics. In this paper, by combining discrete time transfer matrix method ... -
Subharmonic Orbits of a Strongly Nonlinear Oscillator Forced by Closely Spaced Harmonics
(The American Society of Mechanical Engineers (ASME), 2011)We study asymptotically the family of subharmonic responses of an essentially nonlinear oscillator forced by two closely spaced harmonics. By expressing the original oscillator in action-angle ... -
Vibration Analysis and Mitigation of Dead-Zone on Systems Using Two-Impulse Zero-Vibration Input Shaping
(The American Society of Mechanical Engineers (ASME), 2011)Input shaping is an effective method for reducing oscillatory motion in linear systems. Many physical systems, however, exhibit discontinuous dynamics, such as saturation, rate limiting, backlash, ... -
Two New Implicit Numerical Methods for the Fractional Cable Equation
(The American Society of Mechanical Engineers (ASME), 2011)The cable equation is one of the most fundamental equations for modeling neuronal dynamics. Cable equations with fractional order temporal operators have been introduced to model electrotonic ... -
Nonlinear Responses of Dual-Pendulum Dynamic Absorbers
(The American Society of Mechanical Engineers (ASME), 2011)The nonlinear responses of a single-degree-of-freedom system with two pendulum tuned mass dampers under horizontal sinusoidal excitation are investigated. In the theoretical analysis, van der Pol’s ... -
Numerical Continuation in a Physical Experiment: Investigation of a Nonlinear Energy Harvester
(The American Society of Mechanical Engineers (ASME), 2011)In this paper, we demonstrate the use of control-based continuation within a physical experiment: a nonlinear energy harvester, which is used to convert vibrational energy into usable electrical ...