Cabinet with doors lifted by a gas spring

  • Thread starter Thread starter sliwinskit
  • Start date Start date
  • Tags Tags
    Gas Spring
AI Thread Summary
Calculating gas springs for cabinet doors that lift rather than hinge requires understanding the mechanics of a four-bar linkage system. A sketch illustrating the door's support in various positions can clarify the mechanism's operation. The force needed for equilibrium at any door position can be determined through established analysis methods found in textbooks on Theory of Machines. Helpful software for gas spring calculations includes JGC software, though guidance on downloading or purchasing it is needed. This foundational knowledge will assist in selecting the appropriate gas spring for the application.
sliwinskit
Messages
2
Reaction score
0
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.
 

Attachments

  • image1.jpg
    image1.jpg
    101.8 KB · Views: 216
Engineering news on Phys.org
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.
 
Reply
  • Like
Likes Keith_McClary
OK, here is draft of mechanism. Cabinet closed, during opening and fully open.
bus.jpg
 
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.
 

Thread 'Query on Isentropic relationships (such as PV^gamma = constant)'

Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
View full post »

Thread 'Dry sump pump issue'

I have an engine that uses a dry sump oiling system. The oil collection pan has three AN fittings to use for scavenging. Two of the fittings are approximately on the same level, the third is about 1/2 to 3/4 inch higher than the other two. The system ran for years with no problem using a three stage pump (one pressure and two scavenge stages). The two scavenge stages were connected at times to any two of the three AN fittings on the tank. Recently I tried an upgrade to a four stage pump...
View full post »

Similar threads

Opening mechanism for a bicycle kickstand
Replies
9
Views
3K
Building a fold down door with torsion gas spring calculation
Replies
4
Views
5K
How Do Length-Adjustable Gas Springs Work?
Replies
6
Views
6K
Will this door with torsion spring survive?
Replies
2
Views
2K
Pressure profile of a gas flow through an orifice
Replies
10
Views
6K
Gas strut / spring size for floor trap door
Replies
2
Views
21K
As much steam as possible from engine exhaust gas + warm water?
Replies
25
Views
4K
Classical Possible error in book (Thermodynamics: An engineering approach)
Replies
7
Views
3K
I Force Required for Gas Struts on 1972 VW T2 Danbury Pop top campervan?
Replies
9
Views
2K
Absolute motion analysis of pulley-spring system
Replies
10
Views
1K

Hot Threads

Recent Insights

Back
Top