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Showing 1 to 7 of 7 for “"NUCARS"”.
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NUCARS Modeling of a Freight Locomotive with Steerable Trucks
The rail dynamics modeling package NUCARS has been used extensively to model freight cars. We have found that it can also be used effectively to model freight locomotives. This thesis discusses the development of a NUCARS model to represent a six-axle freight locomotive equipped with steerable …
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A comparative study of modified passenger railway vehicle trucks
… New and Untried Car Analytic Regime Simulation (NUCARS). NUCARS is a multi-body dynamic program for railway vehicle design and performance evaluation and is an industry-wide standard in North America. The analysis of performance using NUCARS also shows that USD truck has better curving behaviour …
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A Multibody Dynamics Approach to the Modeling of Friction Wedge Elements for Frieght Train Suspensions
… inputs. The dedicated train modeling software NUCARS® has been used to run simulations with similar inputs and to compare — when possible — the results with those obtained from the new stand-alone MATLAB friction wedge model. The stand-alone model shows improvement in capturing the transient …
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The Analysis and Creation of Track Irregularities Using TRAKVU
… is a track preprocessor used in conjunction with NUCARS, a railcar dynamic modeling program¹. TRAKVU enables users to create track data and apply the appropriate irregularities so that the track will have the characteristics of the desired class of track. A validation was then performed to …
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Complex Bogie Modeling Incorporating Advanced Friction Wedge Components
… data collected by TTCI. In the comparison with NUCARS® we determined that the stand-alone model, which incorporates the wedges as bodies, captures the warp dynamics of the truck better than NUCARS®, which models the wedges as connections. By creating a model with severely worn sideframes, we …
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Advanced Multibody Dynamics Modeling of the Freight Train Truck System
… results have been compared with results from NUCARS®, an industry standard train modeling software, for similar inputs. The multibody dynamics models have also been extended to a variably damped full-truck model and a variably damped half-truck warping model. These models were reformulated to …
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Electromechanical Design and Development of the Virginia Tech Roller Rig Testing Facility for Wheel-rail Contact Mechanics and Dynamics
… multibody dynamics software such as Simpack, NUCARS, and Vampire, which is a milestone for hardware-in-the-loop testing of railroad systems.