Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 1301-1320 of 1786
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A Mechanistic Multibody Model for Simulating the Dynamics of a Vertical Piano Action
(The American Society of Mechanical Engineers (ASME), 2014)The theoretical framework for constructing a fully mechanistic multibody dynamic model of a vertical piano action is described, and its general validity is established. Equations of motion are derived symbolically using a ... -
Experimental and Numerical Investigation of the Mechanism of Blast Wave Transmission Through a Surrogate Head
(The American Society of Mechanical Engineers (ASME), 2014)This work is to develop an experimentvalidated numerical model to elucidate the wave transmission mechanisms through a surrogate head under blast loading. Repeated shock tube tests were conducted on a surrogate head, i.e., ... -
Air Suspension System Model Coupled With Leveling and Differential Pressure Valves for Railroad Vehicle Dynamics Simulation
(The American Society of Mechanical Engineers (ASME), 2014)In this investigation, a nonlinear air suspension system model that accounts for the coupling between air springs, leveling valves, and differential pressure valves is developed and integrated into generalpurpose multibody ... -
Nonlinear Frequency Response Analysis of a Multistage Clutch Damper With Multiple Nonlinearities
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents the nonlinear frequency response of a multistage clutch damper system in the framework of the harmonic balance method. For the numerical analysis, a multistage clutch damper with multiple nonlinearities ... -
Bioaeroservoelastic Analysis of Involuntary Rotorcraft Pilot Interaction
(The American Society of Mechanical Engineers (ASME), 2014)This work presents the integration of a detailed biomechanical model of the arm of a helicopter pilot and an equivalently detailed aeroservoelastic model of a helicopter, resulting in what has been called a â€کbioaeroser ... -
Nonlinear Analysis of a New Extended Lattice Model With Consideration of Multi Anticipation and Driver Reaction Delays
(The American Society of Mechanical Engineers (ASME), 2014)A new extended lattice model of traffic flow is presented by taking into account both multianticipative behavior and the reactiontime delay of drivers. The linear stability theory and the nonlinear analysis method are ... -
Nonintrusive Structural Dynamic Reduced Order Modeling for Large Deformations: Enhancements for Complex Structures
(The American Society of Mechanical Engineers (ASME), 2014)This paper focuses on the development of nonlinear reduced order modeling techniques for the prediction of the response of complex structures exhibiting “large†deformations, i.e., a geometrically nonlinear behavior, ... -
Control of Fractional Order Systems Using Chatter Free Sliding Mode Approach
(The American Society of Mechanical Engineers (ASME), 2014)The problem of stabilization of nonlinear fractional systems in spite of system uncertainties is investigated in this paper. First, a proper fractional derivative type sliding manifold with desired stability and convergence ... -
An Approximate Solution for Period 1 Motions in a Periodically Forced Van Der Pol Oscillator
(The American Society of Mechanical Engineers (ASME), 2014)In this paper the approximate analytical solutions of period1 motion in the periodically forced van der Pol oscillator are obtained by the generalized harmonic balance (HB) method. Such an approximate solution of periodic ... -
Influence of the Fastening Modeling on the Vehicle Track Interaction at Singular Rail Surface Defects
(The American Society of Mechanical Engineers (ASME), 2014)With up to 12 springdamper groups distributed in the actual area of a rail pad, different fastening models are developed in this paper to include the nonuniform pressure distribution within a fastening system and model the ... -
Alternative Criterion for Investigation of Pitchfork Bifurcations of Limit Cycle in Relay Feedback Systems
(The American Society of Mechanical Engineers (ASME), 2014)Relay feedback systems are strongly nonlinear due to their switching properties. Some nonlinear properties of relay feedback systems have been verified to be preferable to modern control engineering, whereas others might ... -
Optimal Control and Forward Dynamics of Human Periodic Motions Using Fourier Series for Muscle Excitation Patterns
(The American Society of Mechanical Engineers (ASME), 2014)Forward dynamic simulations of a periodic forearm motion were developed in order to explore the efficiency of using a Fourierseriesbased parameterization function for muscle excitations within dynamic optimization. The ... -
Hopf Instabilities in Free Piston Stirling Engines
(The American Society of Mechanical Engineers (ASME), 2014)Free piston Stirling engines (FPSEs) are examples of closed cycle regenerative engines, which can be used to convert thermal energy into mechanical energy. These engines are multidegreeoffreedom dynamical systems, which ... -
Accounting for Nonlinearities in Open Loop Protocols for Symmetry Fault Compensation
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, we consider model examples of dynamical systems with only a few degrees of freedom, and with desirable symmetry properties, and explore compensating control strategies for retaining robust symmetric system ... -
Energetic and Dynamic Analysis of Multifrequency Legged Robot Locomotion With an Elastically Suspended Load
(The American Society of Mechanical Engineers (ASME), 2014)Elastically suspended loads can reduce the energetic cost and peak forces of legged robot locomotion. However, legged locomotion frequently exhibits multiple frequency modes due to variable leg contact times, body pitch ... -
Bifurcation and Chaotic Analysis of Aeroelastic Systems
(The American Society of Mechanical Engineers (ASME), 2014)The dynamic behavior of aeroelastic systems is governed by a complex interaction among inertial, elastic, and aerodynamic forces. To prevent system instability, the interaction among these forces must be properly understood. ... -
Application of a Homogeneous Balance Method to Exact Solutions of Nonlinear Fractional Evolution Equations
(The American Society of Mechanical Engineers (ASME), 2014)The fractional Fan subequation method of the fractional Riccati equation is applied to construct the exact solutions of some nonlinear fractional evolution equations. In this paper, a powerful algorithm is developed for ... -
Operational Space Inertia for Closed Chain Robotic Systems
(The American Society of Mechanical Engineers (ASME), 2014)Operational space modeling and control are important techniques for robot manipulation. A key element of operational space control is the operational space inertia matrix (OSIM). The OSIM matrix represents a mapping between ... -
Neural Dynamics and Newton–Raphson Iteration for Nonlinear Optimization
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, a special type of neural dynamics (ND) is generalized and investigated for timevarying and static scalarvalued nonlinear optimization. In addition, for comparative purpose, the gradientbased neural dynamics ... -
Stability and Hopf Bifurcation in a Three Species Food Chain System With Harvesting and Two Delays
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, we analyze the dynamics of a delayed food chain system with harvesting. Sufficient conditions for the local stability of the positive equilibrium and for the existence of Hopf bifurcation are obtained by ...