• Fast Eigen value solver for modal analysis with support for 2D and 3D visualization

• Higher order pitch circle distortion for “smart” sprockets and toothed pulleys to isolate vibrations and reduce noise

• Seamless integration with other GT-SUITE models such as GT-POWER, valvetrain, cranktrain etc..

Chain, Gear, and Belt Drive DynamicsGT-SUITE is the leading simulation tool for rapid and detailed modeling of drive systems for valvetrain timing and other engine accessories. Complete systems are modeled within GT-SUITE, with combinations of gears, belts, chains, sprockets, pulleys and idlers. These models are integrated with other mechanical and multi-physics systems to provide a strong analysis of how various vehicle systems influence each other.

Since 1994, Gamma Technologies has set the standard in system simulation, thanks largely to solving deep multi-physics with an easy to use interface. GT-SUITE’s multi-physics approach to simulation empowers engineers to tackle their design and modeling challenges at every stage of the development cycle.

Highlights and Advanced Features

• Expert-system toolbox in highly intuitive model builder with specialized outputs to reflect industry standards

• Accurate prediction of friction power loss

• Range of hub modeling options from simple revolute joint & spring damper assembly to more complex roller & journal bearings

Timing and Auxiliary Drives

Gamma Technologies601 Oakmont Lane, Suite 220

Westmont, IL 60559

www.gtisoft.com(630) 325-5848

SolutionsGear Drive Dynamics

• Model both spur and helical gears, internal and external• Account for detailed contact kinematics of the gear tooth

flank for microgeometry modification• Generate a mesh of the gear tooth for FE analysis with user-

controlled resolution on the flanks • Identify the dynamic transmission error frequencies of a

certain gear pair under specific loading conditions to study rattle and whine problems

• Pinpoint the cause and eliminate failure of gears driving accessories

Timing and Auxiliary Belt Drive Dynamics

• Simulate the entire system including belt, toothed and grooved pulleys, idlers, and tensioners

• Account for belt inertia, axial, bending and shear stiffnesses to evaluate belt tension, flap, hub loads, slip and more

• Predict belt drive dynamics for start-stop applications with dual-arm tensioners used in Belt Starter Generator (BSG) or Belt Alternator Starter (BAS) applications

• Evaluate complex state-of-the-art technologies such as Front End Filtering Pulleys, Overrunning Alternator Pulleys (OAPs), ‘Stretchy’ belts and more

Chain Drive Dynamics

• Generate meshed chain drive layouts in 3D model builder• Use smart meshing features for parametric roller and silent

chain geometries coupled with flexible definition methods for sprocket tooth geometries

• Predict chain vibrations and loads using rigid/flexible fixed or tensioner supported moving guides

• Evaluate cross-interaction between sub-systems via integration of chain drives with valvetrains, cranktrains, fuel injection systems etc. all within GT-SUITE

Tensioner Modeling

• Study effects of tensioners at multiple levels of fidelity• Choose a wide range of components from GT’s general multi-

body dynamic template library to build non-conventional and exotic tensioning devices

• Perform basic simulations using simple hydraulic tensioning elements that use a stand-alone volume

• Execute detailed simulations by modeling the hydraulic tensioner as an element in an integrated oil circuit model

GT-SUITE