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SDB666

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About SDB666

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    Italy
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  1. Hi guys, I would like to ask you why cannot I apply displacement initial conditions on joints? This happens for all kinds of joints, I can only apply velocity initial condition as shown in the figure below. Thank you all.
  2. The BISTOP is active, but not creating any reaction forces. Anyway I solved the problem using a spring-damper element which acts only as a damper. Basically I get the same effect I had with the trans-damping of the compliant joint and the BISTOP function creates reacting forces.
  3. Thank you Felipe, Bistop function should fit perfectly. May I ask you why the effect of the bistop function is cancelled when the compliance of the joint (where the bistop function is applied on) is activated? Thank you
  4. Hi guys, I need your help! I'm simulating the translation of an arm actuated by a pneumatic cylinder (constant force) whose movement is stopped by a limit switch. How can I simulate the limit switch to stop the motion of the translating arm keeping the force acting on the piston (as happens in reality), avoiding the penetration of bodies (see the attached .gif)? I'm not interested in "Collision detection" button, since after this forced has stopped, I want another force to start acting on another body. Thank you all!
  5. Hi Chris, thanks for your opinion. You are right, but that's the clue of my problem and what I'm willing to solve. How should I set the markers? Can you provide me a practical example? I've already tried all the possible combinations!
  6. Hi guys, I'm new in this forum and I'll truly appreciate your help. I'm trying to simulate a shuttle moving along a guide, which is simplified with two curves (Up and DOWN). As you can see here below and in the attached files, I simulate the four wheels with four bodies joined to the shuttle through 4 bushing elements with high rotational and translation stiffness. Each wheel is constrained to the relative curve through a Point To Curve constraint. In order to move the shuttle, I have firstly applied a constant force along the x axis of the shuttle and everything works well. Since I got to simulate the behavior of an electric motor, I would like to apply a motion law. Therefore I created a simply motion with constant speed set to 100mm/s. When the shuttle compete the guide's curve (so it changes the axis of motion from x to y), it "blows up", releasing itself from bushing elements. I tried to define the motion between other markers, but I don't get the desired motion. Can someone help me in this matter? Thank you Carrello.mdl Curva.txt
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