Cabinet with doors lifted by a gas spring

[sliwinskit]

Hello everybody.

I'm trying to figure out how to calculate gas springs for specific doors not with hinge, but lifted up, like on the picture.
Do anybody experience with such type of mechanism?

Also I'm looking for helpful software, for gas spring calculation (different types). I found screens from JGC software, but I don't know how to download or buy it.

 

[Dr.D]

The photo you show does not make the mechanism clear. Try posting a sketch that shows how the doors are supported at about the half open position.

 

[sliwinskit]

OK, here is draft of mechanism. Cabinet closed, during opening and fully open.

 

[Dr.D]

The linkage is just a four bar linkage, with the gas cylinder added to provide motive power. The analysis of the four bar linkage is given in many textbooks on Theory of Machines. With that sort of analysis in hand, you can calculate the force required for equilibrium at any position; that is the force that you would ideally want the gas spring to provide. That should get you started.