Hello to you.
I'm working on improving a crankcase opening, as you'll see in the attached file.
I would have to be able to determine the necessary force of the cylinder so that it can support the housing it supports.
I don't know at all if this is easily calculable with SW, that's why I'm asking you.
Thank you in advance for your advice.
Lucbirus
Hello@lucbirus
It's easier to do this in Excel.
I have one of my very good friends from the forum Mécano41 for more than ten years and who makes wonderful sheets.
I am attaching the link that seems to me the most appropriate to your PB
https://forums.futura-sciences.com/technologies/593207-dun-verin-course.html
https://forums.futura-sciences.com/technologies/694950-calcul-verin-electrique-dossier-lit-camping.html (for this sheet be careful because you have a spring on each side)
Here are others in order of relevance always made by Mecano41, it's up to you to see which one is best suited to your assembly.
https://forums.futura-sciences.com/technologies/501881-capot-farfelu-verin-hydraulique.html
http://forums.futura-sciences.com/physique/811437-etude-statique-motoriser-un-tracker-solaire.html#5
On the other hand , @Lucbirus you or another person in this forum, use one or more of these sheets, please thank the author directly on the Futura forum. She is a person who is always at the service of others and who never asks for anything in return, but I know that a thank you is always welcome.
Kind regards
Hello, I don't have access to SW anymore for the moment but I guess it's a gas spring that you need, here is the link to a configurator.
Maybe it can help you.
No need for SW for this kind of calculation (except to determine the position of the Center of Gravity and the weight of the hood to be moved), XL allows you to automate the calculations but we are dealing with a stupid problem of statics: position of the CdG, Mass, position of the pivot, position of the anchor.
The biggest problem is often related to the environment, which requires pivot and anchoring positions, which are not necessarily the simplest.
The manufacturer's doc/website is often of great help.
Hello, this link if it can suit you http://www.verinagaz.fr/.
Have a nice day
Hello to you.
@ zorro_mp, it's true that the Excel table is well done. I didn't understand everything and I'm drooling to make it match my sketches. I don't understand why he put the horizontal coordinates under Y and vertical under X (or I didn't understand anything). I've been floundering for a long time to know how to use this trick and I'm not convinced of my job.
I'm still going to try to understand all the subtleties but not at work, on a quiet winter evening...
So I tried the configurator of franck.ceroux, much simpler. I think that
I found jack to my assembly.
Your advice was very informative and I learned a lot; Thank you for all your help on this file
Hello
If my memories of statics do not betray me, the force required for the cylinder to lift the hood in the closed position will be:
Weight of the hood/2 approx 25kg / sine of the angle of the cylinder (projection of the vertical vector) approx 11° which gives us a force of 130 DaN at least because we are in balance.
I think it is in your interest to increase the angle (go down the axis to the maximum) to reduce the effort at the beginning of the opening. 20° --->73DaN.
I would also reinforce the fixing of the cowl axle because the axial force of the cylinder may deform the sheet metal return.
Kind regards