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RISThreshold Stress Criterion in New Wheel/Rail Interaction for Limiting Rail Damage Under Heavy Axle Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a qualitative discussion of the effects of increasing new (initial) wheel-rail contact stresses on the degree of damage to the rail due to heavy axle loads. The importance ...
A Laboratory Investigation of Threshold Stress in Wheel/Rail Interaction for Heavy Axle Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study is a continuation of earlier investigations to determine acceptable upper bound of contact stresses (threshold stress) for new wheel and rail under heavy axle load conditions. Using ...
Conduction-Controlled Phase-Change Energy Storage With Radiative Heat Addition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermal energy storage in a phase-change material due to latent heat of fusion caused by conduction-controlled melting during radiative heat injection is considered. It is solved employing ...
Rail Head Geometry, Rail Rolling and Wheel-Rail Contact Tilting Analysis for Heavy Axle Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents analytical considerations which are important to design a rail head for reducing rail damage due to heavy axle loads. There are two important parameters of design of rail ...
Heavy Axle Load Wheel-Rail Contact Stresses and Their Tread-Crown Curvature Relationships
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a theoretical/design analysis of wheel-rail contact stresses and geometries for U.S. freight cars of 70, 95, 100, and 125 ton freight capacities operating on various crown ...
Optimized Near Minimum Time Control of Flexible Structures Using Variable Gain (LQG) Control Strategies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A neural network based time optimal control of flexible structures is presented. The implementation is done on a flexible inverted L structure with surface-bonded piezoceramic sensors/actuators. ...
Harmonic Roll Response of a Railroad Freight Car
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mathematical model of a railroad freight car has been developed under the Track-Train Dynamics Program. The model simulates a car equipped with auxiliary suspension devices (e.g., rubber-cushion ...
Analyzing Bounding and Galloping Using Simple Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper focuses on modeling the gait characteristics of a quadrupedal gallop. There have been a number of studies of the mechanics of the stance phase in which a foot is in contact with ...
Energy Savings Due to Wheel/Rail Lubrication—Seaboard System Test and Other Investigations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Following work carried out at the Transportation Test Center (TTC), a test was conducted on the Seaboard System Railroad as the first in a series designed to determine the extent of potential ...
Comparative Study of the Linear and Non-Linear Locomotive Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mathematical model for a six-axle locomotive is developed to investigate its dynamic response on tangent track due to vertical and/or lateral track irregularities. The model represents the ...