VALDYN

VALDYN is a multi-body dynamic and kinematic simulation package specifically developed for valvetrain and drive-system analysis and cam and spring pack design.

VALDYN

With its detailed ‘building block’ models of engine components, it is significantly quicker to build models with VALDYN than with general-purpose dynamics tools and quicker to run because model refinement focuses on the critical aspects related to engines.

Key features

  • ‘Building block’ structure enables modelling of virtually any valvetrain, from individual valvelines to complete systems incorporating crankshaft and camshafts
  • Modelling of drive systems, including gears, belts and chains
  • Dynamic bodies to include finite element (FE) models of guides, rockers, shafts and casings
  • Embedded FE solver to run the FE dynamic reduction and back-substitution to evaluate FE stresses or vibrations
  • Data input using expressions involving case-varying parameters
  • Frequency domain solver including forced-damped solution of linear models
  • Dynamic and kinematic analysis of valvetrains
  • Modelling of variable valve actuation (VVA) and variable valve timing (VVT) mechanisms
  • Animated output in the time and frequency domains
  • Results plotted automatically
  • 3D frequency-response plots
  • Plotting of mathematical expressions involving several outputs
  • Run distribution using network computing resources to speed up multi-case simulations
  • Links to ENGDYN and FEARCE for engine structural analysis
  • Co-simulation with other Realis Simulation formerly Ricardo Software and third-party programmes, such as Simulink

Our insights

Analysis-led development of a novel opposed-piston two-stroke engine

Analysis-led development of a novel opposed-piston two-stroke engine

Conference
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Electric vehicle NVH and efficiency using Motor-CAD and Ricardo Software

Electric vehicle NVH and efficiency using Motor-CAD and Ricardo Software

Conference
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Reaching net-zero with Ricardo Software

Reaching net-zero with Ricardo Software

Conference
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From asperity to fuel economy – a digital friction study

From asperity to fuel economy – a digital friction study

Conference
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Transmissions of the Future

Transmissions of the Future

White paper
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VALDYN Flyer

VALDYN Flyer

Brochure
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Get in touch

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