Journal of Computational and Nonlinear Dynamics: Recent submissions
Now showing items 1201-1220 of 1786
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Composed Fluid–Structure Interaction Interface for Horizontal Axis Wind Turbine Rotor
(The American Society of Mechanical Engineers (ASME), 2015)In this paper, we propose a technique for highfidelity fluid–structure interaction (FSI) spatial interface reconstruction of a horizontal axis wind turbine (HAWT) rotor model composed of an elastic blade mounted on a ... -
Dynamic Models for Load Calculation Procedures of Offshore Wind Turbine Support Structures: Overview, Assessment, and Outlook
(The American Society of Mechanical Engineers (ASME), 2015)One of the main mechanisms for driving down the cost of offshore wind energy is to install ever larger wind turbines in larger wind farms. At the same time, these turbines are placed further offshore in deeper waters. As ... -
Nonlinear Hydrostatic Restoring of Floating Platforms
(The American Society of Mechanical Engineers (ASME), 2015)This paper provides a comprehensive theoretical analysis to determine the nonlinear hydrostatic restoring loads and stiffnesses of a floating offshore platform. A new approach is developed to calculate the buoyancy forces ... -
Large Scale Validation of a Flexible Multibody Wind Turbine Gearbox Model
(The American Society of Mechanical Engineers (ASME), 2015)Although wind turbine noise is mainly dominated by aeroacoustic noise, mechanical noise, coming from gearbox or generator, could—especially when it contains audible tonal components—result in nonconformity to local ... -
Assessing the Importance of Geometric Nonlinear Effects in the Prediction of Wind Turbine Blade Loads
(The American Society of Mechanical Engineers (ASME), 2015)As the size of commercial wind turbines increases, new blade designs become more flexible in order to comply with the requirement for reduced weights. In normal operation conditions, flexible blades undergo large bending ... -
Nonlinear Response of Wind Turbines Under Wind and Seismic Excitations With Soil–Structure Interaction
(The American Society of Mechanical Engineers (ASME), 2015)The objective of this paper is to present an efficient beam formulation based on the boundary element method (BEM), for the nonlinear dynamic analysis of wind turbine towers of variable cross section founded either on ... -
Modeling and Analysis of an Offshore Wind Turbine With Fluid Power Transmission for Centralized Electricity Generation
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a mathematical model of an innovative offshore wind turbine with fluid power transmission. The proposed concept is a variablespeed, pitch controlled turbine which differs from conventional technology ... -
Dynamic Response Analysis of Wind Turbine Gearbox Using Simplified Local Tooth Stiffness of Internal Gear System
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a dynamic finite element analysis model for a wind turbine gearbox in which a number of internal gears mesh with each other in a complex pattern. Differing from the conventional dynamic models in which ... -
Probabilistic Performance of Helical Compound Planetary System in Wind Turbine
(The American Society of Mechanical Engineers (ASME), 2015)The dynamics of contact, stress and failure analysis of multibody systems is highly nonlinear. Nowadays, several commercial and other analysis software dedicated for this purpose are available. However, these codes do not ... -
Assessment of Stiffening Type of the Cutout in Tubular Wind Turbine Towers Under Artificial Dynamic Wind Actions
(The American Society of Mechanical Engineers (ASME), 2015)The effectiveness of alternative stiffening types of the cutout provided near the base of tubular steel wind turbine towers is assessed, taking into account the dynamic nature of wind loading. To that effect, artificial ... -
On the History of Lateral Ground Vehicle Motions From a Multibody Dynamics View
(The American Society of Mechanical Engineers (ASME), 2015)The lateral motion of ground vehicles is characterized by the rolling contact between wheels and guideway. Railway vehicles feature passive lateral guidance by wheelsets while road vehicles handling is operated by steering ... -
Using Full Scale Experiments to Verify a Simulation Used to Analyze the Safety of Rail Vehicles During Large Earthquakes
(The American Society of Mechanical Engineers (ASME), 2015)A simulation model is used to calculate the rocking motion of a vehicle and how antiderailing guard rails work to prevent derailment when subject to large ground excitation and the results are verified through full scale ... -
Parameters Study of Hopf Bifurcation in Railway Vehicle System
(The American Society of Mechanical Engineers (ASME), 2015)Roller rig tests were adopted to illustrate two typical types of Hopf bifurcations existing in the railway vehicles. In order to investigate the influence of the vehicles' parameters on the features of Hopf bifurcation, a ... -
Special Issue: Wind Turbine Modeling and Simulation
(The American Society of Mechanical Engineers (ASME), 2015)The contribution of wind to the energy mix is steadily growing: with well over 300 GW of installed wind power worldwide [1], wind energy provides today about 8% of electricity consumption in Europe [2], with peaks of up ... -
Dynamic Response Optimization of Complex Multibody Systems in a Penalty Formulation Using Adjoint Sensitivity
(The American Society of Mechanical Engineers (ASME), 2015)Multibody dynamics simulations are currently widely accepted as valuable means for dynamic performance analysis of mechanical systems. The evolution of theoretical and computational aspects of the multibody dynamics ... -
Hybrid Low Cost Approach for Quadrotor Attitude Estimation
(The American Society of Mechanical Engineers (ASME), 2015)This paper presents a new approach to estimate the orientation of a quadrotor using single lowcost inertial measurement unit (IMU) sensor. The proposed hybrid solution uses two extended Kalman filters (EKF) along with a ... -
Development of a Multibody Model to Predict the Settling Point and Interfacial Pressure Distribution in a Seat–Occupant System
(The American Society of Mechanical Engineers (ASME), 2015)The location of the hipjoint (HPoint) of a seat occupant is an important design specification which directly affects the seat static comfort. Most car seats are made of polyurethane foam and so the location of the HPoint ... -
Sensitivity Based, Multi Objective Design of Vehicle Suspension Systems
(The American Society of Mechanical Engineers (ASME), 2015)This article deals with the dynamic response optimization of mechanical systems, based on the computation of independent state sensitivities. Specifically, the dynamic behavior of a coach is analyzed in detail so as to ... -
Reduction of Multibody Dynamic Models in Automotive Systems Using the Proper Orthogonal Decomposition
(The American Society of Mechanical Engineers (ASME), 2015)The proper orthogonal decomposition (POD) is employed to reduce the order of smallscale automotive multibody systems. The reduction procedure is demonstrated using three models of increasing complexity: a simplified dynamic ... -
Longitudinal Tire Dynamics Model for Transient Braking Analysis: ANCF LuGre Tire Model
(The American Society of Mechanical Engineers (ASME), 2015)In this investigation, the flexible tire model based on the absolute nodal coordinate formulation (ANCF) is integrated with LuGre tire friction model for evaluation of the longitudinal tire dynamics under severe braking ...