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SDB666

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About SDB666

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    Italy
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  1. Hi guys, I'm trying to understand how Hydraulics works in Activate, but I can't figure out what I'm doing wrong. Any help would be usefull, thank you all.
  2. Hi guys, I'm trying to implement a co-simulation using Activate and MotionView, using the Hydraulic tools, but I'm getting this error at the very beginning of the simulation. How can I fix it? I got version 14 of Visual C++ Thank you all
  3. Thank you Asajd. I'll check this example out, but I still would like to know how to fix this problem in MotionView. Sincerly, Sebastiano
  4. Hi guys, I'm trying to evaluate the reaction forces on both the translational joints (they have been modeled as compliance joints in order to do not get redundant constraints). To achieve this result, I need to apply a motion between the piston (green one) and the case of the cylinder (yellow one) using makers, but the system fails to reach the convergence. I would like to know how to apply the motion using markers, since seems to be quite tricky to me. Thank you all.
  5. Thank you ppraf for your valuable help. I would like to share my model with you , how can I share it in a private way?
  6. Hi guys, I truly need your help. As you can see in the attached picture, I'm trying to understand if the initial inclination of the pneumatic cylinder has any effects on the torque needed to tilt the arm. I imported the CAD into my motionview model (Cylinder in vertical position) and I would like to know if there is any way to rotate the cylinder and its components (cylinder case and piston). I tried to achieve this result by defining the position of the Center of Mass as a function of the inclination angle (expressed as a solver variable, in order to optimize its value by using hyperstudy in a second moment), but I'm afraid that I simply translated the center of mass instead of rotate it (see picture), in fact the floating marker associated to the piston is not tilted. How can I achieve this result? How can I rotate the graphic too? (I tried with "orientation" but I cannot fully understand which angles it desired as input) Thanks for helping me in this matter.
  7. 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.
  8. 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.
  9. 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
  10. 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!
  11. 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!
  12. 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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