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(OP)
Hello everyone again :) I need help with two things

1) Which function I can simulate the preload force "Fw" as in the figure below?

2)This is what the normal simulation of a gear belt looks like? I mean these oscillations marked with a blue arrow, I used the dimensions of the standard "ISO 5294".

(OP)

Quote (GregLocock (Automotive)20 Nov 20 06:57 Oh, just in case, SFORCE is what you are looking for in the expression builder)

I mean the preload function force "Fw" which stretches the belt, for example push 100N and not come back like the green block on the move below. I checked the "SFORCE" documentation but I don't understand how to use this function for this example.

You have to write an expression for a force between the two parts the pulleys are mounted to that pushes them apart. it'll look something like SFORCE/2901761,I=290761,J=0100,TRANSLATION,FUNCTION=150000, except with different i and j markers

Cheers

Greg Locock

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(OP)

Quote (GregLocock (Automotive)21 Nov 20 21:05 You have to write an expression for a force between the two parts the pulleys are mounted to that pushes them apart. it'll look something like SFORCE/2901761,I=290761,J=0100,TRANSLATION,FUNCTION=150000, except with different i and j markers)

Hmmmm, "SFORCE/2901761,I=290761,J=0100,TRANSLATION,FUNCTION=150000" This formula describes the same as applying that force from menu selection?

(OP)

Quote (GregLocock (Automotive)23 Nov 20 22:44 under the skin, yes. You'd may need 2 bodies, not one.)

If SFORCE formula is the same as force from the selection menu button and I apply it, the green box still makes a move

I mean the preload effect when you tensioning the belt and turn the screw (push the green box for example 100N and fix it), as below video

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