EFFECTS OF THE LATERAL INSTABILITY OF HIGH CENTER OF GRAVITY FREIGHT CARS.

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作者：

Wiebe, D.

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来源：

| 1600年 / ASME, Rail Transp Div, 2 v, New York卷

关键词：

LATERAL INSTABILITY - ROCKING;

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摘要：

Dynamic measurements from tests made on test track with controlled 3/4-in. cross-level difference changes illustrate the force and motion magnitudes resulting from resonant and near resonant operating speeds; side bearing loads of 138,000 lb and spring group loads of 100,000 lb, accompanied by center plates separating and wheels lifting. The rotational energy input to the car body can be approximated for a given motion cycle and is proportional to the product of the amplitudes of the track profile and the car body motion. The high lateral (horizontal) forces on the truck at the side bearing and center plate make the truck unstable and cause wheels to lift off the rail on one side. This lateral force at a given end of the car is proportional to the corresponding vertical side bearing load.

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