SIMPACK Engine Valve Train

SIMPACK ENGINE VALVE TRAIN is an add-on SIMPACK module bundling which enables an easy, quick, accurate and reliable model setup as well as the sophisticated analysis of single and complete valve train models.

 

SIMPACK ENGINE VALVE TRAIN is available in a BASIC and ADVANCED version. Model setup can be done using a parameterised and customizable SIMPACK valve train model database. Depending on the focus of application basic single valve kinematics and dynamics up to highly detailed and complex complete valve trains with dynamic spring models, nonlinear single sided Hertzian contacts, hydraulic lash adjusters with oil and check ball dynamics, arbitrary flex. bodies and hydrodynamic bearings can be analysed. Verified models can be directly used in complete engine models with coupled timing mechanism and crank train interaction.

 

Applications

  • Simulation of any valve train design
  • Valve longitudinal and lateral dynamics
  • Contact forces/contact loss
  • Dynamic valve spring forces and behaviour
  • Hydraulic lash adjuster forces and behaviour
  • Camshaft torsional and bending behaviour
  • Camshaft bearing design
  • Stress and durability analysis


Benefits

  • Unlimited modelling flexibility Valvetrain
  • Handling of extreme non-linear system behaviour
    (coil contact, contact loss , HLA hydraulics, EHD, …)
  • Fully parameterised highly detailed valve train database for all typical valve train types available Gear wheel
  • Analyses in the frequency and time domain
  • Scaleable level of model detail and complexity
  • Batch jobs runs
  • Automatic analysis reports
  • Easy implementation of user specific code
  • Open interfaces (FEM, CAD, EHD, Hydraulics, Control)
  • Direct integration/combination with complete engine models
  • Impressive calculation performance and result accuracy


Features

  • Efficient contact models incl. contact loss and friction
  • Detailed hydraulic lash adjuster models
  • Highly sophisticated dynamic valvespring models and pre-processor
  • Consideration of gas forces acting on valves
  • Flexible body generation within SIMPACK
  • Importation of flexible bodies from FE codes
  • Arbitrary use of flex. bodies (e.g. valve, camshaft) including direct(!) moved marker contact (e.g. on rocker/swinging arms)
  • Option to use Elasto-Hydrodynamic Bearings (EHD)
  • Consideration of timing mechanism excitations
  • Open data interface (import and export)
  • Flexible displacement animation (contouring and scaling)
  • Option to use stress animation
  • Various and adaptable analysis scenarios