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- 2008-05-09
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The issues with the axle hub assembly on Ottawa's light-rail transit vehicles are due to the lateral loads experienced by the vehicle's axles during operation, according to Alstom. Higher than expected lateral loads the root cause of issues with Ottawa LRT axles, Alstom says
太华人民太胖,必须减肥了。
Alstom says its root cause investigation found "higher than expected lateral loads" on the wheel hub assembly, adding that conclusion would guide the manufacturer with the short-term and long-term solutions to the problem with the axles.
Alstom officials told the Transit Commission that the lateral loads (the dynamic at the wheel/rail interface) experienced by the wheel assembly during operation exceed design limits, causing bending loads on the axle hub assembly and leading to development of play into the assembly, the restraining nut unscrewing and a derailment.
太华人民太胖,必须减肥了。
Alstom says its root cause investigation found "higher than expected lateral loads" on the wheel hub assembly, adding that conclusion would guide the manufacturer with the short-term and long-term solutions to the problem with the axles.
Alstom officials told the Transit Commission that the lateral loads (the dynamic at the wheel/rail interface) experienced by the wheel assembly during operation exceed design limits, causing bending loads on the axle hub assembly and leading to development of play into the assembly, the restraining nut unscrewing and a derailment.