Recent content by steve_5959

want door to open in ten seconds.

My door is 2000kg, it is 3m wide, 4m high and is on a hinge. for the moment i am saying that friction is negligable. How much torque is required to open my door. I have already said that the torque needed to open the door is acting through the C.O.G so it is 2000(1.5)(9.81), i don't know if that...

I think i understand it better now after seeing those images you attached. I was also looking at doors powered by a linear actuator, that were connected by means of a linkage system, however it looks far too complicated to pursue. I calculated the torque by multiplying the distance from the edge...

yes that looks like a very good idea alright. A huge force will be required from that linear actuator to open the door but I think it could work. It is also very simple. Is the linear actuator mounted on some sort of pivoting system so that it can open the door to angles of 90 degrees and over...

would a electro-mechanical actuator connected to a power screw be able to open the door? An arm attached from the shaft to the door could rotate the door and the power screw would allow it to stop. Not sure yet how I will connect the motor to the power screw yet, possibly gears?

This is purely a paper concept, so i need not worry about space, cost, etc. that much. I think that's a good idea for working backwards to find the angular speed. It's just difficult to picture how i will open it, and where the force will be exerted on the door. I was thinking of exerting a...

First of all thanks you very much for the reply. I really appreciate the help. So basically ur saying the ball bearings are going to "bear" the full brunt off the doors load right? So one hinge will support the load of the door. One thing I am stuck on is how I am going to open and close the...

Hi, I am trying to design a 2000kg door that has dimensions of 3m wide X 4m high and will be automatically swing door operated, for a college project. I have come up with a relatively straightforward design using a motor and gears to open the door, and to close it again with a spring. I have...