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I have to calculate a traverse hanging from a crane. Unfortunately, the program always shows an instability in the calculation?

Answer

In a normal suspension on crane hook or traverse, the component will move away at external horizontal loads. Likewise, the suspension on the crane will not constitute a bearing for internal forces occurring in the system.

The mapping of actually unstable, because mobile systems in a calculation program is not always easy. You should see the bearings on the crane eyelets for X and Y and consider how horizontal forces resulting from an uneven vertical load (= twisting) can be intercepted.

In most cases, however, the model can be calculated by supporting the crosshead horizontally with a very small spring (see model file).

Keywords

Traverse Hanging systems Crane carrier

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