Coupling (
  Type ( Chain )
  Spring (
   Stiffness ( 1e6N/m 5e6N/m )
   Damping ( 1.3e6N/m/s 3.8e6N/m/s )
   Break ( 5.4e7N 5.4e7N )
   r0 ( 20cm 30cm )
  )
  CouplingHasRigidConnection ( 1 )
  Velocity ( 0.1m/s )
 )
 Coupling (
  Type ( Chain )
  Spring (
   Stiffness ( 1e6N/m 5e6N/m )
   Damping ( 1.3e6N/m/s 3.8e6N/m/s )
   Break ( 5.4e7N 5.4e7N )
   r0 ( 20cm 30cm )
  )
  CouplingHasRigidConnection ( 1 )
  Velocity ( -0.1m/s )
 )
 Buffers (
  Spring (
   Stiffness ( 1e6N/m 5e6N/m )
   Damping ( 1.3e6N/m/s 3.8e6N/m/s )
   r0 ( 20cm 30cm )
  )
  Centre ( 0.5 )
  Radius ( 1 )
  Angle ( 0.5deg )
 )
