Indian Journal of Engineering & Materials Sciences

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Development and Validation of Test Rig for Experimental Analysis of Contact Behavior Between Rail Wheel-Rail and Rubber Tire-Rail in Road cum Rail Vehicles


Affiliations
1 THDC-Institute of Hydropower Engineering and Technology, Uttarakhand 249 124, India
2 Mechanical Engineering Department, NITTTR , Bhopal 462 002, India
3 Mechanical Engineering, UIET, Panjab University, Chandigarh 160 014, India
4 Department of Mechanical Engineering, GLA University, Mathura 281 406, India
5 Departmentof Computer Science and Engineering, Institute of Aeronautical Engineering, Hyderabad 500 043, India
6 Centre for Research Impact and Outcome, Chitkara University, Rajpura 140 401, India

Present research attempt deals with modeling, structural analysis, fabrication of test rig and experimentations to investigate static contact behavior of ‘Rubber Tire-Rail’ and ‘Rubber Tire-Road’ combinations. Conceptual models for the test rig, rail and rubber tire with rim (178/100/R16) are developed and the contact behavior of Rubber tire-Road and Rubber tire-Rail are simulated using FEM. To establish the dimensions of the Test Rig, two stage FEM is performed. In stage-I, contact combinations viz. ‘Rubber Tire-Road’ and ‘Rail wheel-Rail’ are studied using ANSYS software without any test rig while in stage-II the same pairs with same simulation environment are analyzed with the proposed test rig. The negligible stresses and deformation in the test rig are indicators of correctness and rigidness of designed test Rig. After finding out the dimensions, the test rig is fabricated and used to perform the experimentations. Numerical and experimental investigations for ‘Rubber tire-Rail/Road’ combinations are carried into 3 and 2 sub categories respectively. The percentage error in experimental and simulation results are 1.82% for Contact Pressure and 14.37% for Contact Area at 30 KN load and 0.5 MPa inflation pressure. Results indicate that the developed simulated environments and test rig can be used for similar future studies.

Keywords

Contact patch, Road cum rail vehicle, Rubber tire-rail contact, FEM, Simulation, Test rig
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  • Development and Validation of Test Rig for Experimental Analysis of Contact Behavior Between Rail Wheel-Rail and Rubber Tire-Rail in Road cum Rail Vehicles

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Authors

Sharad K Pradhan
THDC-Institute of Hydropower Engineering and Technology, Uttarakhand 249 124, India
Arpit Singh Rathore
Mechanical Engineering Department, NITTTR , Bhopal 462 002, India
Shankar Sehgal
Mechanical Engineering, UIET, Panjab University, Chandigarh 160 014, India
Pankaj Sonia
Department of Mechanical Engineering, GLA University, Mathura 281 406, India
Gandikota Ramu
Departmentof Computer Science and Engineering, Institute of Aeronautical Engineering, Hyderabad 500 043, India
Chander Prakash
Centre for Research Impact and Outcome, Chitkara University, Rajpura 140 401, India

Abstract


Present research attempt deals with modeling, structural analysis, fabrication of test rig and experimentations to investigate static contact behavior of ‘Rubber Tire-Rail’ and ‘Rubber Tire-Road’ combinations. Conceptual models for the test rig, rail and rubber tire with rim (178/100/R16) are developed and the contact behavior of Rubber tire-Road and Rubber tire-Rail are simulated using FEM. To establish the dimensions of the Test Rig, two stage FEM is performed. In stage-I, contact combinations viz. ‘Rubber Tire-Road’ and ‘Rail wheel-Rail’ are studied using ANSYS software without any test rig while in stage-II the same pairs with same simulation environment are analyzed with the proposed test rig. The negligible stresses and deformation in the test rig are indicators of correctness and rigidness of designed test Rig. After finding out the dimensions, the test rig is fabricated and used to perform the experimentations. Numerical and experimental investigations for ‘Rubber tire-Rail/Road’ combinations are carried into 3 and 2 sub categories respectively. The percentage error in experimental and simulation results are 1.82% for Contact Pressure and 14.37% for Contact Area at 30 KN load and 0.5 MPa inflation pressure. Results indicate that the developed simulated environments and test rig can be used for similar future studies.

Keywords


Contact patch, Road cum rail vehicle, Rubber tire-rail contact, FEM, Simulation, Test rig