How do you do a motion study by applying forces to a moving mechanism?

Simulation
1

Hello

I designed a hatch system with an opening via a lever.

I would like to check my calculations using SolidWorks. 

I have a slatted hatch that opens with the push of a lever. I'd like to apply some force to the upper arm of the lift.

Do I need a special package? And how can I achieve it?

Thanks in advance:) 


trappe_1.jpg
2

Hello @luca.rapin 

Your request for clarification!

a) I would like to check my calculations using SolidWorks,      are they RDM calculations or is it the effort required to lift the hatch.

b) I would like to apply force to the upper arm of the lift,   what is stopping you from doing that? You have to know if you want to know the force to apply but I guess it's also there to lift the trapdoor.

In short, are these calculations of the forces required to lift the hatch or are you planning to do RDM calculations?

Kind regards

PS: your system seems to me to be very convoluted just to lift a slatted hatch

3

Hello

(a) to calculate the force to be applied to the lever to open the hatch.

b) what prevents me from doing it, just that I don't know how to do it with SW.

I did some calculations to determine how much force to apply to the lever to open the hatch. And I'd like to check them out with SW.

I admit that the system is not the simplest but given the environment and the space I have to install it, I can't do otherwise. 

Kind regards. 

4

Luca

Can you post your ASW using the "pack and go" so that you have all the pieces and all the links that unite them.

Also give us the information on the lever travel and the expected travel for the hatch (max angle if more than 90°)

Kind regards

5

Hello @luca.rapin,

I agree with Zozo_mp in his questioning of the design and/or layout of the mechanism...
A quick mechanical simulation with Meca3D meets your calculation request, and highlights the problem if the lever must be operated manually.
The attached document describes this analysis.

Kind regards.


trappecaillebotis.zip
2 Likes
6

Hello

I didn't know Meca3D. I'm going to install it and test that.

Thank you for your answers.

Kind regards.

 

7

Hello @m.blt 

Well your calculations but the problem lies elsewhere in an unsuitable design. You can do the same thing with 50% less room and especially less effort to lift the hatch in the same small space

Kind regards

8

Hello

Just for information, I was also able to check my calculations with motion analysis in SolidWorks Motions.

Thank you very much for your answers and your help:)

Best regards. 

9

Hello @Zozo_mp, do you have any examples of similar design but more "smart"
I try to create a hatch opening system that is as discreet as possible.
Thank you for your help!!

10

Hello@Raphael Goffard_1

The subject has been closed!

You need to create a new item so that we can answer you.

In the meantime, there are other possibilities, but it all depends on your constraints. We will discuss this when you have created the new topic.

Kind regards

1 Like