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Full-Text Articles in Mechanical Engineering
Tapered Roller Bearing Accelerated Life Test Rig Design And Fabrication, Laith Naeem, Andrew Nguyen, Bryson Sin, Ramon Vargas
Tapered Roller Bearing Accelerated Life Test Rig Design And Fabrication, Laith Naeem, Andrew Nguyen, Bryson Sin, Ramon Vargas
Capstone Design Expo Posters
L10 bearing fatigue life testing is a costly and prolonged process, as the bearing is characteristically designed for durability and reliability. Within the current testing methods, faulty materials still have the potential of passing the test. However, with this life test rig, the bearing will be tested to failure, thus providing an indicator for its predicted life span.
The purpose of this project is to optimize and construct a L10 life test rig for accelerated fatigue testing of the Association of American Railroad Class K, 6 ½ x 9-inch double-row tapered roller bearing to their maximum fatigue life …
A Practical Tool For The Determination Of Surface Stresses In Railroad Bearings With Different Contact Geometries And Load Conditions Using Finite Element Analysis, Michael A. Mason
Theses and Dissertations
The connection between contact geometry and fatigue in tapered roller bearings utilized in the railroad environment is still of interest. Roller bearings for railroad applications are typically precision ground with crowned contact geometries to prevent edge loading of components. This normally results in completely elastic Hertzian contact stresses under standard railcar loads. However, under extreme load conditions, detrimental edge loading has been known to occur. It is proposed to develop a tool, using finite element analysis, that can be utilized to optimize complex raceway crown geometries for severe applications.
A successful implementation of this tool is presented and validated using …