robot walking onset

[Italo.Persechino]

Hi guys, I'd need a hand on how to simulate a quadruped robot walk on a floor.

I send you an image to make you understand better.

thanks for any answers!

 

[Italo.Persechino]

Then, I better explain the problem... I have to make contact between the legs and the platform and make the model walk on the platform. I tried but he stays still. help me

 

[meccanicamg]

So, I'll tell you my idea. you have 4 legs and all 4 have a distance bond from the plane that varies from 0 (in contact) to +something (gamba raised) and a distance bond crossed linear or on trajectory that is 0 or other value at the beginning of the plane and goes to n when it advances (tot mm/step).

so with the animation module you just have to animate the sequence correctly and record the video so. If you've never done these things, I suggest you do tutorials with simpler examples

 

[Fulvio Romano]

the walking of a quadrupede always admits at least two legs in contact with the floor, so you will not have all independent variables, the method of mechanicsmg seems correct.

Alternatively, the cleanest but most complicated method is to make a cinematic simulation with an external software (from matlab to excel) that provides out the five vectors with the corners of the legs and the space position of the robot baricentro (the five values are not independent, but are tied in a nonlinear way to no more than two parameters, that is, the axis of the times and the length of the falcade).

At that point, pass the five carriers to the cad and keep your fingers crossed. . .

 

[SolidUser]

I don't know what license you have of solidworks, but what you ask you get it through solidworks motion that is present in the premium license, through the assignment of engines and 3d contacts, always if the couplings you have assigned to your set are correct.

 

[Italo.Persechino]

Thank you for responding. In practice I had already given an input to the crank and the legs move correctly, what I can't do is realize the contact between the platform and the legs (or rather the end points of the legs) so as to make it walk on the platform, because now the legs move correctly, but the model remains firm on itself. ah, as the first component I entered is the chassis, I made it mobile and the platform made it fixed. I hope I've been clear. I expect your answer.

 

[Italo.Persechino]

I don't know what license you have of solidworks, but what you ask you get it through solidworks motion that is present in the premium license, through the assignment of engines and 3d contacts, always if the couplings you have assigned to your set are correct.

yes soliduser I used solidworks motion, the simulation I set it up but the model moves on itself and I have to move it instead on the platform or on a floor

 

[SolidUser]

yes soliduser I used solidworks motion, the simulation I set it up but the model moves on itself and I have to move it instead on the platform or on a floor

If you put the couplings, engines and contacts correctly, then I think it lacks the force of gravity and friction between the feet and the floor.

 

[Italo.Persechino]

If you put the couplings, engines and contacts correctly, then I think it lacks the force of gravity and friction between the feet and the floor.

perfect, it's what I can't do, or better I do it by selecting the legs and then the platform but nothing happens

 

[SolidUser]

perfect, it's what I can't do, or better I do it by selecting the legs and then the platform but nothing happens

I'm sorry, but I don't know how to use motion at such a level that I can help you with friction.
if there are tutorials on this integrated in solidworks, run them.

 

[Italo.Persechino]

I'm sorry, but I don't know how to use motion at such a level that I can help you with friction.
if there are tutorials on this integrated in solidworks, run them.

OK I will try like this thank you very much!! ! !