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STRENGTH OF RAILROAD WHEELS--3

K. Nishioka, Yoshiyasu Morita

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Abstract

Reactions between the wheel and the rail have a great effect on the strength of the railroad wheel. These forces comprise a vertical force acting on the tread of wheel and a lateral force onto the flange, and they induce high stresses on the wheel disk. Those stresses fluctuate in accordance with the rotation of wheel and cause principally the fatigue of wheel disk. However, it is usually very difficult to analyze those stresses exactly because of the specific intricate contour of wheel. The authors calculate the stresses with the finite element method, and try to establish a general calculation method for wheel stresses.

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What this paper is about

Reactions between the wheel and the rail have a great effect on the strength of the railroad wheel. These forces comprise a vertical force acting on the tread of wheel and a lateral force onto the flange, and they induce high stresses on the wheel disk. Those stresses fluctuate in accordance with the rotation of wheel and cause principally the fatigue of wheel disk. However, it is usually very difficult to analyze those stresses exactly because of the specific intricate contour of wheel. The authors calculate the stresses with the finite element method, and try to establish a general calculation method for wheel stresses.

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Available abstract

Reactions between the wheel and the rail have a great effect on the strength of the railroad wheel. These forces comprise a vertical force acting on the tread of wheel and a lateral force onto the flange, and they induce high stresses on the wheel disk. Those stresses fluctuate in accordance with the rotation of wheel and cause principally the fatigue of wheel disk. However, it is usually very difficult to analyze those stresses exactly because of the specific intricate contour of wheel. The authors calculate the stresses with the finite element method, and try to establish a general calculation method for wheel stresses.

Key concepts: Tread, Flange, Structural engineering, Rotation (mathematics), Finite element method, Engineering, Torque, Materials science

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