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Passion. Innovation. Solutions.
Virtual Engine
www.fev.com
Capabilities and
Work-Flow
CRANKTRAIN AND
PISTON
valvetrain and
accessory drives
Geartrain
HIGH QUALITY Simulation –
LOW-COST POWERTRAIN DEVELOPMENT
>> Step-by-step-workflow of
virtual powertrain prototyping <<
>> Simulation of virtually
every part of your powertrain <<
With its “Virtual Engine” FEV pro-
FROM DEVELOPERS FOR
sembled. As a result, FEV Virtual En-
PREPROCESSING
SIMULATION
POSTPROCESSING
vides an advanced simulation tool
DEVELOPERS
gine is a robust and high performing
FEV Virtual Engine enables users to
FEV Virtual Engine supports single
In addition to reviewing the simula-
for powertrain development. The
Virtual engine has been developed
solution of combined systems with-
choose and customize pre-defined
or a series of steady-state and speed
tion in terms of a model animation
template-based architecture per-
by powertrain experts and continu-
out expensive and difficult to handle
models from the component library
sweep simulations using state-of-
directly in the modeling environment,
fectly combines the advantages of
ously updated according to new
co-simulation techniques. Virtual
or to import native CAD models. A
the-art solver technology. The re-
the PostProcessor allows the user
easy to use single purpose software
technology needs and been used for
Engine incorporates use of rigid or
material database is provided and is
sulting data can be analyzed in the
to generate plots for detailed result
and multipurpose software with no
leading edge powertrains developed
flexible components depending on
user-extendable by adding new mate-
included post-processor for in-depth
analysis. Plots can be copied directly
limitations in extendibility. Virtual
by FEV over a decade. The Adams® -
the required level of fidelity.
rials. The unique communicator tech-
analysis of the system’s dynamic be-
to the clipboard to easily paste them
Engine‘s open and broad modeling
based program allows simulation
nology and the exceptional template-
havior.
into any other document. The time-
capabilities are ideally suited to
of powertrain components – i.e.
based architecture support modular
based dynamic load set simulation
analyze not only all components of
cranktrain, valvetrain, timing and
and scalable modeling directly corre-
results can be used for consecutive
conventional powertrains but also
accessory drive, pistons and rings,
sponding to both the user’s experience
fatigue and durability analyses.
innovative designs from belt driven
and geartrain. In addition, entire
and functional simulation demands.
start/stop systems to complete hy-
powertrain system dynamics can be
brid powertrains.
analyzed with the components as-
YOUR BENEFITS:
> Unique template based structure
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FEV GmbH - VIRTUAL ENGINE
> Wide range of pre-defined models
CAPABILITIES AT A GLANCE:
> Complete state-of-the-art > Concept to definitive powertrain development
component library organized for > Virtual design release
powertrain modeling
>Troubleshooting
> Numerous practical tutorials
> Innovative systems development
> Context-sensitive help
> Steady-state or speed-sweep simulations
> Development environment
> Results for subsequent fatigue and durability analyses
powered by Adams®
>Modeling using rigid or flexible components
> Direct 3D modeling via Parasolid > Correlated simulation results
kernel or import of native CAD models
> Data export to allow post-processing in any user-preferred software
FEV GmbH - VIRTUAL ENGINE 03
Capabilities and
Work-Flow
CRANKTRAIN AND
PISTON
valvetrain and
accessory drives
Geartrain
THE INNER VALUES COUNT
>> Cranktrain and piston
dynamics analysis <<
CRANKTRAIN ANALYSIS
model as well as the individual parts
W-type or Boxer-type engines.The
Piston and Ring Analysis
The built-in 1D torsional vibration
can be refined in depth using rigid, tor-
cranktrain can be run in a single or se-
Virtual Engine has advanced 3D
analysis supports cranktrain concept
sional, beam or fully flexible bodies
ries of steady-state operations as well
simulation features to predict dy-
decisions. The free loads analysis
by means of FE models. Bearings can
as in speed sweeps. A built-in virtual
namics of the piston ring pack, pis-
supports balancing of cranktrain and
also be analyzed in different fidelities
testing feature allows estimating de-
ton, piston pin and connecting rod
complete engine.
including linear, non-linear, hydro-
sign parameters under-critical opera-
assembly. It allows analysis of the
Any type of cranktrain can be built in
dynamic and elastohydrodynamic
tion of the cranktrain.
piston secondary dynamics, the im-
a few minutes using the Cranktrain
(EHD) models.
An Integrated Gas Force Wizard allows
pact of the crankshaft and/or piston
Wizard, making it possible to create
FEV Virtual Engine supports modeling
creating gas pressure curves from
pin offset on friction and resulting
each component – from crankshaft to
and simulation of all cranktrain types
basic thermodynamic parameters,
NVH through piston slap. Boundary
piston pins on the fly. The resulting
including inline, V-type, VR-type,
without pressure indication curves.
lubrication and asperity contact are
calculated based on the Greenwood
and Trip method. The 2D hydrody-
APPLICATIONS
KEY FEATURES
namic approach uses a simplified
KEY FEATURES
> Load prediction
> Cranktrain Wizard to build the models on the fly
version of the Reynolds equation,
> Piston secondary dynamics
> Crankshaft torsional vibration analysis
> Concept to 3D Dynamic definitive simulation
thus providing fast solutions.
> Advanced boundary, 2D / 3D Hydrodynamic
> Crankshaft stress analysis
> Rigorous bearing models Hydrodynamic,
> Cranktrain balancing
Elastohydrodynamic (EHD)
> Connecting rod analysis
> Roller bearing models
> Bearing design analysis
> Analysis of all types of cranktrains including
> Crankshaft counter weight layout
novel designs
> Balancer shaft layout
> Integrated Gas Force Wizard
The comprehensive full 3D elastohydrodynamic solution addresses
the high fidelity piston assembly
simulation needs.
and Elastohydrodynamic solutions
> 3D Ring pack dynamics
> Rigid, compliant or dynamic structural models
APPLICATIONS
> Piston slap & NVH analysis
> Vibration damper layout
> Friction & wear prediction
> Flywheel layout
> Skirt profile and pin offset optimization
> Firing order optimization
> Ring pack optimization
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FEV GmbH - VIRTUAL ENGINE
FEV GmbH - VIRTUAL ENGINE 05
Capabilities and
Work-Flow
CRANKTRAIN AND
PISTON
valvetrain and
accessory drives
Geartrain
IT‘S THE TIMING THAT MATTERS
>> Valvetrain timing and
accessory drive analysis <<
VALVETRAIN ANALYSIS
TIMING AND ACCESSORY DRIVE
The valvetrain has significant impact
ANALYSIS
on the gas exchange behavior of a
Virtual Engine allows getting control
combustion engine. FEV Virtual En-
over the side effects of downsizing
> Wet belt guides
gine supports multiple variations of
and build complete, multi-staged
> Complete cranktrain, valvetrain and timing drive simulation
valvetrain design, thus providing a
timing and accessory drives, com-
high degree of freedom in modeling
prised of mixed chain and belt drive
and simulation. Valvetrain models
stages.
are created in a unique two-step
Building blocks are provided for
process from ‘single’ to ‘comple-
the Chain/Belt Drive analysis: chain
te’ valvetrains. A single valvetrain
types including bushing, roller, silent/
represents the part of a valvetrain
inverted tooth, sprockets including
which is actuated by one cam or
ISO 606 profile, circular or non-cir-
two cams, in case of Desmodromic
KEY FEATURES
cular using external CAD geometry,
drives. A complete valvetrain is built
> Valve lift designer
involute sprockets for silent/inverted
by assembling multiple single valvetrains via a camshaft.
> Comprehensive spring model
> Cam gauge utilty
> Single and complete valvetrain modeling using flexible bodies
> Continuous variable valve lift (CVVL) modeling
> Flexible guides
APPLICATIONS
> Timing and accessory drive design
> Chain dynamics
> Belt dynamics
> Drive layout supports
> Tensioner system analysis
and flexible chain guides, hydraulic
tensioner, toothed belts like ISO
5294 and ISO 5296 profiles, ribbed
belt such as Poly-V belt, circular and
> High fidelity analysis to find the optimum layout and
elliptic idler/pulley, and tensioner.
characteristics for best gas exchange behavior
Even complex belt and chain drive
>Maximum possible engine speed
templates can be easily created with
> Dynamic valve spring behavior
> Chain / Belt Template Wizard to build the models on the fly
tooth chain, fixed, translational, pivot
APPLICATIONS
>Maximum valve seating velocities
KEY FEATURES
the Chain/Belt Template Wizard.
> Friction prediction
> Analysis and optimization of existing lift curves with respect to lift, velocity, acceleration and jerk
> Inspection data for quality control e.g. gauging a cam lobe profile with roller tappet
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FEV GmbH - VIRTUAL ENGINE
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Capabilities and
Work-Flow
CRANKTRAIN AND
PISTON
valvetrain and
accessory drives
Geartrain
CONVERTING POWER INTO SPEED
>> Geartrain analysis <<
GEARTRAIN ANALYSIS
Virtual Engine provides complete
tool set to build any type of gear drive, analyze it using advanced gear
contacts and assemble it with other
subsystems. Gears may be used to
build gearboxes or transmissions,
but can also be part of multi-staged
timing or accessory drives. External
or internal, spur, helical, scissors
and planetary gear sets can be modeled using rigid or flexible modeling
elements.
KEY FEATURES
APPLICATIONS
> Gearbox and transmission modeling
> Transmission error and resulting
> Timing and accessory drives, pumps or balancing
speed irregularities
drives modeling
> Gear whine & rattle
> External or internal, spur and helical gears
> Backlash Studies
> Scissors gears
> Tooth Loads
Global Contact and Support
for FEV Virtual Engine
e-mail [email protected]
Local Contact and Support
for Chinese Customers
e-mail [email protected]
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FEV GmbH - VIRTUAL ENGINE
FEV Japan Co., Ltd.
1008 Burex Kojimachi
3-5-2 Kojimachi, Chiyoda-ku
Tokyo 102-0083, Japan
phone +81 3-3222-0711
fax +81 3-3222-0721
e-mail [email protected]
FEV China Co., Ltd.
Room 1302, AnQuan Plaza
Beiyuan Road No. 32,
100012 Beijing, China
phone +86 10 8477-5229
fax +86 10 8477-5230
e-mail [email protected]
www.fev.com
Virtual Engine I/2014
> Planetary gear sets

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