How To Calculate The Force Of The Gas Spring?

P, means the center of gravity.
G, means the gravity,normally, gravity equals weight multiplied by 9.8 (G=mg, g=9.8).
L, means the distance between hinge and P.
D, means the distance between hinge and the gas spring, and the gas spring is in an extended state.
N, means the number of gas springs
If the weight is 20kg, L is 500mm, D is 300mm, there are 2 gas springs F=163.5N
If the gravity is 400N, L is 400mm, D is 200mm, there is 1 gas spring, can you calculate the right force?
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[@ravenmooore]

Do you have a video how to calculate the distances from the pivot? Or we just choose that ourselves?

[@DennisMathias]

This was just great! Now let's make a spreadsheet!

[@bobfixes7640]

The length of the strut (comp and extended) is important for placement which will change D. This simple approach works for LBS and inches or feet too but choosing a strut length AND force has to be done carefully. Make a drawing...

[@TrouverParadise]

How can I apply this to a vertical murphy bed?

[@philipphilos4886]

how about if somebody uses aluminum and the other uses steel? Is this computation still reliable?

[@peirinternationallimited3097]

The answer is 800N. Did you get the right answer?

[@ridvanrizvanoglu5800]

800N will create equal moment to the moment which creates mass of the door. then door must be stable. But how it is happening when we are opening little bit, after that gas spring pening the door till the end?

[@barasundara8323]

Thanks....😘😘😘😘

[@87meow]

How did you get the 300mm on 'D'

[@8m405]

I want to reduce.pressure of it. How to do

[@rouzbeh7486]

D=L*cos45=500*0.7=350 how do you calculate 300?

[@VirdiMilano]

Can I ask; should the gas strut extend to its maximum length when the lid it is fitted to is fully open? I'm fitting this to a classic car bonnet.

[@YellowstoneBrew]

I love that! Thanks

[@peirinternationallimited3097]

Thanks.

[@87meow]

Is the 300mm D the distance from hinge point to first fixing point on the lid?

[@unitedstates3068]

measure the distance at right angles to the gas strut

[@jjchoi5691]

20kg?,, or N?

[@vikaskumar-vi1pd]

800 n is right

[@Recoder2]

now i iknow it.. tq

[@zoy8295]

what weight of gaspring?

[@Sanfelipeño]

Hola tengo una duda que he buscado y buscado solución pero no la encuentro A ver si alguien me ayuda Necesito levantar una tapa de 2000mm * 1300mm con un grosor de 40mm, peso aprox de 25kg Pero, necesito levantarla a modo de techo sin pivote, necesitaría 4 resortes de 800mm pero... No se de cuantos N... Ya que el vendedor me ofrece de 100 a 800 y no se calcularlo con este sistema de elevar completo sin pivote (imagínense levantar una tapa de una tupper) por lo que he averiguado necesitaría con 250N pero... No estoy seguro.

[@yashladani7986]

To measure D, which angle taken in refence?

[@peirinternationallimited3097]

D, means the distance between hinge and the gas spring, and the gas spring is in an extended state. So the angle should be 90°.

[@yashladani7986]

​@@peirinternationallimited3097 You have any formula to calculate time requirement to complete open and close cabinet ?

[@peirinternationallimited3097]

@yash ladani Pls send the inquiry to the mailbox: [e-mail]

[@goodtobehandy]

About that much ,plus a little bit more.😁.

[@anandhanengg251]

wrong!

[@tolmera1970]

So so wrong

[@ashikchowdhury8354]

How to calculate D?

[@peirinternationallimited3097]

D, means the distance between hinge and the gas spring. You can know 'D' by measuring.

[@unitedstates3068]

measure the distance at right angles to the gas strut

[@HarwinderSingh-oh8trwood]

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