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bogie rotational resistance

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Znehzati

Znehzati

Mechanical
Joined
Aug 27, 2017
Messages
2
Location
IR
hello everybody
in designing secondary suspension with flexicoil spring, we must consider the stiffness between bogie and carbody (γ=M/ψ) to be assured against derailment.
what is the limit we have to consider for this criterion? is there any suggestion in standards or papers?
thanks in advance
 
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