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Valvetrain Design Analysis
Highlights:
Valvetrain Dynamics and Kinematics, Cam Design
Models conventional and
variable lift mechanisms GT-SUITE features a complete set of tools for valvetrain engineering in a single integrated
environment. Using these, engineers can focus on valvetrain design issues such as
Multi-polynomial and stability, durability and noise, as well as inherent tradeoffs between engine breathing and
B-spline valve lift curve mechanical design objectives.
synthesis (cam design)
The GT-SUITE valvetrain analysis functionality is based primarily on three underlying
general-purpose libraries:
Valvetrain kinematics
• General planar kinematics
• Multi-body Dynamics (MBD) : 1D/2D/3D/Flexible bodies
Quasi-static rigid • Valvetrain component toolbox
analysis with inertias The valvetrain toolbox is a library of specialized “expert-system” valvetrain components
and springs built on top of MBD elements and with many ease-of-use and automation features. They are
described in valvetrain engineering terms, and in simulations produce a large number of
Valvetrain multi-body valvetrain engineering outputs and metrics. They can be mixed with basic MBD
dynamics: rigid and components to model unconventional or advanced valvetrain systems.
flexible bodies
Higher-level, expert-sys-
tem valvetrain toolbox
(cam, valve, lifter, rocker,
finger, pushrod, HLA )
+ general 2D/3D shapes
Visualization and
animation of valvetrains
Single branch or
complete multi-cylinder
valvetrain
Camshaft torsional
vibrations (time and
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