End Stop


Symbol:
Identifier: Mechanics.Rotation.EndStop
Version: 4.1
File: Rotary.cat
Connectors: Mechanical Connector (rotational) ctr1 connectable to elements of the Rotational Mechanics library
  Mechanical Connector (rotational) ctr2 connectable to elements of the Rotational Mechanics library
Parameters: Angle until Stop 1 phi1 end stop 1; end stop in contact if dphi>=phi1
  Angle until Stop 2 phi2 end stop 2; end stop in contact if dphi<=-phi2
  Model mode "Rigid End Stop" or "Elastic End Stop"
  Kind of Impact kind plastic, elastic or with restitution coefficient;
for rigid end stops only (mode=="Rigid End Stop")
  Coefficient of Restitution (0<=ci<=1) ci only visible if mode=="Rigid End Stop" and kind=="by Coefficient"
  Stiffness Stop 1 k1 only visible if mode=="Elastic End Stop"
  Stiffness Stop 2 k2 only visible if mode=="Elastic End Stop"
  Damping Stop 1 b1 only visible if mode=="Elastic End Stop"
  Damping Stop 2 b2 only visible if mode=="Elastic End Stop"
Friction: Consideration of Friction friction  
  Rigid Friction with kindF only visible if friction==true
  Static Friction Torque Tst only visible if friction==true and kindF== "Stick and Slippling"
  Sliding Friction Torque Tsl only visible if friction==true
  Limit Speed Difference domL only visible if friction==true and kindF=="Continuous Transition"
Advanced: Advanced Settings adv only visible if mode=="Rigid End Stop" or friction=="true"
  Minimum Separation Torque eps_Ti only enabled if adv==true and mode=="Rigid End Stop"
  Maximum Speed after impact for permanent contact eps_dom only enabled if adv==true and mode=="Rigid End Stop"
Relative Minimum Difference of the Friction Torques dTfrel only enabled if adv==true and kindF=="Stick-Slip"
Minimum Separation Speed Difference eps_domsl only enabled if adv==true and kindF=="Stick-Slip"
Minimum Separation Momentum eps_dI only enabled if adv==true and mode=="Rigid End Stop" or kindF=="Stick-Slip"
  Transition Shape of Force of Sliding Friction kindTrans
  • "Gevrey Approach (based on tanh-Function)"
  • "tanh Approach"

only visible if friction==true
only visible if kindF=="Continuous Transition"
only enabled if adv=="true"
  Shape Coefficient (Transition Shape) eps_sigma only visible if kindTrans=="Gevrey Approach (based on tanh-Function)"
  Shape Coefficient (Transition Shape) eps_tau only visible if kindTrans=="tanh Approach"
Results: Internal Torque Ti  
  End Stop Torque Tstop  
  Spring Torque in End Stop Ts only visible if mode=="Elastic End Stop"
  Damping Torque in End Stop Td only visible if mode=="Elastic End Stop"
  Friction Torque Tf only visible if friction==true
  Angular Difference dphi  
  Speed Difference dom  
  Stop State stop  
  State of Friction sf only visible if friction==true
  Power Loss Pl only visible if friction==true
  • Elastischer Anschlag inkl. nichtlinearer Kontaktsteifigkeit und Dämpfung sowie veränderlichem Spiel
  • Alternativ: Starres Modell nach den Stoßgesetzen (Plastischer od. Elastischer Stoß, Vorgabe des Stoßfaktors)
  • Berechnung der Verlustleistung bzw. Energie beim Stoß
  • Optional: Reibung im Spiel
  • Elastic end stop model incl. nonlinear contact stiffness and damping as well as variable backlash
  • Alternative: Rigid model according to the impact laws (plastic or elastic impact, specification of the coefficient of restitution)
  • Calculation of power dissipation or energy at impact
  • Option: friction in backlash

Description:

See element type Linear (translational) End Stop for a detailed description of the end stops' behavior.