SimulationX 3.7: What`s New? DRAFT

SimulationX 3.7: What’s new?
“With each new version, our customers expect from us new model elements,
more simulation performance, as well as the support for the latest interface
standards and analysis methods. In each of these areas, SimulationX 3.7 offers
a variety of new features for a broader application spectrum and a higher
performance. It is our goal to surprise you with new features in each new
version of SimulationX to further increase usability and efficiency. We want you
to be not only satisfied, but excited!”
Dr. Andreas Uhlig, Managing Director at ITI
SimulationX 3.7 comes with numerous new libraries for new fields of application: simulating batteries, analyzing chain drives, dynamic simulations of heat exchangers, energetic
evaluations of ship systems or electrical power and communication analyses for normal
and deepwater conditions, for instance. New component libraries, such as vehicle transmissions, 2D and MBS mechanisms, thermodynamic state charts and electric drives with
JMAG-RT interface, enhance the modeling process and provide valuable knowledge for
efficient simulations of complex systems.
The integrated interface standard FMI 2.0 extends the possibilities for exchanging data
between SimulationX and other CAx software and HiL platforms. Such a universal interface keeps investments to a minimum, reduces the effort for data transfers and increases
flexibility in choosing the appropriate software for the task at hand.
Improvements for solvers, event handling and the definition of initial values increase the
performance and stability of simulations. Better usability and higher efficiency during the
modeling process are ensured through a number of improvements for the graphical user
interface.
• 12 new model
libraries allow for
new applications
• Over 200 new and
150 extended
model elements for
improved modeling
• Enhanced graphical
user interface and
better control of
simulations
• Latest interface
standards (FMI 2.0
and others)
• Comprehensive
visualization options
(e.g. thermodynamic state diagrams)
already during the
simulation
SimulationX 3.7: What’s new?
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Highlights:
• More than 200 new model elements
• 7 brand new libraries available in SimulationX 3.7
• Vehicle Transmissions
• Chain Drives
• Mechanisms (2D)
• Planar Linkages (MBS)
• Dynamic Heat Exchangers
• Thermodynamic State Charts
• Electrical Energy Storages
• 5 libraries, released since SimulationX 3.6.0
• Electric Drives with JMAG-RT Interface
• Automotive pneumatics
• Ship Energy Systems (new in SimulationX 3.7: Waste Heat Recovery)
• SubSea Electrical
• Electrical Power and Communication Analysis
• Enhancements to existing libraries (excerpt)
• New engines and transmission elements in the Power Transmission library (1D)
• Spatial Force and Torque Source, Interface with 1D Mechanics and new sensors for MBS Mechanics
• New transmission synchronizers with signal input for an improved modeling process and greater variation
in the depth of detail
• Extended hybrid drives library for consumption optimizations of conventional and electric drives and
additional driving cycles
• Hydraulics – extended application range and increased level of detail
• Over 250 extended and improved model types (excerpt)
• Accurate analyses of the mechanical performance also for idealized modeling of collisions with rigid bodies
• Steady-state heat exchangers: calculation of the latent heat energy in moist air
• More performance and flexibility during model exchange and co-simulation – SimulationX 3.7 supports FMI
2.0
• New display and control elements enhance the range of interactive simulation controls and result analyses
• Improved graphical user interface and usability
• Safety Designer: safety studies and reliability analyses for all system models in SimulationX
• Optimized calculation methods for increased performance and range of applications
SimulationX 3.7: What’s new?
Seven brand new libraries in SimulationX 3.7
Vehicle transmissions
25 years of modeling experience with high-quality models
Benefit from our engineers’ modeling knowledge. With 25
years of experience in the automotive industry, we know the
ins and outs when it comes to optimized modeling of powertrains. You benefit directly from this knowledge through open
transmission and controller models of the vehicle transmission
library. All elements are perfectly suitable as templates for custom model libraries.
For initial concept studies, it is sufficient to parameterize the
transmission models with a minimum of values. Elasticity and
inertias are determined internally through simple dimensioning
rules. Once more detailed data is available, you can easily update the initial values with more accurate ones. The model can
be continually adapted to the ongoing development from the
first design to the production stage.
You can evaluate initial transmission concepts (transmission
ratios, structures, dimensions etc.) and the dynamic behavior
with ease when shifting gears. Interactions between the transmission, controllers and the vehicle are as much potential applications for the library as vibration, NVH and eigenfrequency
analyses. Controller models come equipped with animated state
charts and can be used for software-in-the-loop applications
(SiL), e.g. in software development for control units.
CHAIN DRIVES
Realistic model behavior with chain elasticity, polygon effect
and hanging chain strands
Use the Chain Drives library to master the transfer behavior
and transient oscillations as well as eigenfrequencies of chain
drives in conjunction with controls and drive systems. Apart
from polygon effects and the resulting vibrations, the simulation takes also hanging chain strands and the chain’s elasticity
into account.
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SimulationX 3.7: What’s new?
All model elements can be easily parameterized with catalog
data. The 3D view helps you check your model structure with
ease and allows for animated presentations of your system
model’s behavior.
MECHANISMS (2D)
Efficient analyses of linkages
Benefit from the SimulationX library Mechanisms (2D) as an
efficient and convenient tool for developing and analyzing
linkages. The base structures of the drive models are described
analytically, which results in very fast computations. Model elements pre-configured in accordance with VDI guideline 2729
permit sophisticated geometries (including transfer functions)
and also kinetic analyses of bearings in just one model structure.
They can take the influence of mass forces into account and
give information about the forces in joints. The model elements
from the library Mechanisms (2D) help you create complex
model structures quickly and allow for easy parameterization.
The 3D view lets you check the structure of your model and can
run animated demonstrations. Besides rotating links, push rods
and guide members as well as various two-bar linkages, there
are also sensor elements available. With these sensors you can
quickly capture and analyze kinematic quantities.
Designing and analyzing transfer functions become a lot easier for you. All elements in the 2D Mechanisms library can be
combined with model elements from the Planar Mechanics and
Power Transmission libraries in SimulationX for seamless integration into other structures.
PLANAR LINKAGES (MBS)
More convenient modeling and faster calculations
Efficiently model planar linkages in multibody systems with
ease. Use the library to analyze movements, transfer behavior
and occurring vibrations, forces and moments. The pre-configured model elements save you the trouble of creating kinematic
chains when building your model. Parameterization is based
on application-oriented drawing data. Three-dimensional visualizations help you check the model structure and offer a great
way for presentations. The optimized model structure allows
for particularly efficient calculations up to real-time capabilities.
Bild 1: Diagram view and 3D view of an air
suspension model for trucks
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SimulationX 3.7: What’s new?
DYNAMIC HEAT EXCHANGERS
Simulating detailed thermodynamic processes
Analyze thermodynamic processes, such as heating and cooling
or vaporization and condensation processes, in heat exchangers
in detail. During simulations with elements from the Dynamic
Heat Exchangers library, the influence of the material’s variable
heat capacities and also fluctuating temperature distribution
are included in the calculation. The comprehensive component
models of dynamic heat exchangers offer you utmost flexibility
with a maximum of modeling comfort and simulation knowledge. For the simulation of individual heat transfer processes,
there is a broad array of base elements available. Interfaces with
other SimulationX libraries, such as Hydraulics, Pneumatics and
Thermal Fluid, allow all model elements in this library to be used
as part of complex system models.
ELECTRICAL ENERGY STORAGES
Analyses of performance, temperature and lifespan for
rechargeable batteries
Performance requirements for accumulators are increasing not
only in the automotive industry. Also storing surplus energy
from renewable sources and the motivation to increase energy efficiency in general require cutting-edge electrical storage
technologies. Suitability of a battery for a certain application is
often a question of its lifespan and range. The library Electrical
Energy Storages is intended for the development and selection
of appropriate storage configurations, for temperature analyses and predictions on battery aging – embedded in realistic
load scenarios as part of system simulation. Be it static models
for quick computations with minimal parameterization efforts
or dynamic models for most realistic behavioral simulations:
With the battery library validated through measurements, you
can make realistic predictions about the performance of your
system.
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SimulationX 3.7: What’s new?
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THERMODYNAMIC STATE DIAGRAMS
Fluidic states at a glance
Elements from the library Thermodynamic State Diagrams let you see the state variable of thermodynamic cycles as
animated p-h or h-s diagrams directly in the diagram view already during the simulation, which saves you separate
post-processing. The State Diagrams element already includes static properties for fluids. Information about the fluid
used in the thermodynamic cycle is already captured from the active connection. State sensors read the states for
each process point and can be attached conveniently to the cycle through graphical connections.
Five new libraries since SimulationX 3.6
ELECTRIC DRIVES WITH JMAG-RT INTERFACE
Convenient configurations with accurate parameters from JMAG-RT
Combine the powerful system simulation capabilities of SimulationX and the highly precise, completely parameterized models of electromechanical components from the JMAG platform for finite element analyses. It enables you
to simulate the detailed behavior of induction motors, permanent magnet synchronous motors, stepping motors
and solenoids within their fields of application without the need for extensive parameterizations. Feed dedicated
model elements with fully parameterized JMAG-RT data (including nonlinear electromechanical behavior, such as
torque ripple, cogging torque, magnetic saturation and iron losses) and combine them with system models, such as
1D drivetrains or 3D multi-body structures. Simulate and optimize the entire system with all its electromechanical
components, controllers and loads. Obtain reliable information about the interactions between all components and
discover undesirable side-effects already at an early stage of the development.
SHIP ENERGY SYSTEMS
Low operating costs and high standards for environmental protection through efficient ship systems
Using the SimulationX library Ship Energy Systems is a convenient way to evaluate a ship‘s power demand and optimize its systems and operating profiles. It helps you save fuel and costs during operation. The focus of the library lies
on assessing a ship’s energy balance through analyses of the energetic interactions between auxiliary systems (air and
water cooling circuits, waste heat recovery systems, generators etc.) and the main engines. With an extensive choice
of ready-to-use model elements, you can set up even complex ship energy systems fast and easily. Optimized for fast
simulations of longer time periods, this library helps predict costs and energy consumption for entire journey profiles.
The created model structure can be used as a basis for the SimulationX Safety Designer to conduct safety studies and
reliability analyses of a ship’s systems.
AUTOMOTIVE PNEUMATICS
Analyses of pneumatic braking and suspension systems
With this library, you can simulate the responsive behavior of pneumatic braking and air suspension systems in commercial vehicles, passenger cars and rolling stock. Calculate the fill times and availability times, air consumption in
the entire system and also for each sub-system, pressure losses in supply and signal lines as well as thermal behavior
of the compressed-air system. Benefit from dedicated model elements for membrane and spring brake cylinders,
air suspension, piston and rotary screw compressors as well as a comprehensive selection of valves and pipes. The
parameterization is based on catalog and measured data.
ELECTRICAL POWER AND COMMUNICATION ANALYSIS
Analyses of electrical power and signal transmissions in AC circuits
Simulate the transmission of electrical power and signals over the same grid or power supply line with just one
model. Voltage losses, signal distortion as well as phase displacements can be reliably evaluated at early stages of the
development or for trouble shooting. With the library Electrical Power and Communication Analysis, it only takes
one global parameter for the whole model to be changed in order to switch between both simulations. The library
was specially designed for analyzing linear AC circuits. It is suitable for power analyses as part of transient circuit
simulations as well as for signal analyses to calculate amplitude and phase responses.
SimulationX 3.7: What’s new?
SUBSEA ELECTRICAL
Analyses of electrical power and signal transmissions for
deepwater oil and gas applications
SubSea Electrical, developed in close collaboration between ITI
and the international offshore/subsea engineering consultancy
Agito, is a library specially designed for modeling electrical systems for subsea environments. As power and signals for such
applications are transmitted over one system, models built with
SubSea Electrical can be used both for signal and power analyses. Both calculations can be performed by simply changing a
global parameter without the need to build separate models for
each type of analysis.
The model structure can also be used for the evaluation of the
system’s reliability with the help of FTA (Fault Tree Analysis)
and FMEA (Failure Mode and Effects Analysis) methods in the
SimulationX Safety Designer. Risks can thus be reduced and the
system can be optimized for reliability and costs.
Enhancements in SimulationX 3.7 to existing libraries
Based on new technologies and on customer feedback, the
SimulationX libraries are being constantly improved.
POWER TRANSMISSION (1D)
New engines and transmission elements
The library Power Transmission 1D – one of the most successful
SimulationX libraries – comes with four new model elements:
two new models for V engines, one differential (including the
inertias of all planetary gears) and a hypoid gear stage. They
open up the field of application not only to users in the automotive industry, but also to other sectors, such as textile machinery and machine tools.
MBS MECHANICS
Spatial Force and Torque Source, Interface with 1D Mechanics
and new sensors
Create multibody models quickly with the model element for
spatial sources of force and moment from the SimulationX library MBS Mechanics. Occurring forces and moments are calculated in a common coordinate system on the principle that
action equals reaction. This simplifies the parameterization and
helps prevent errors. MBS Mechanics can be easily combined
with force elements from 1D Mechanics through the new interface for spatial sources of force and moments.
New sensors let you continuously capture roll, pitch and yam
angles of a three-dimensional structure as well as its variable inertias. The Motion Track sensor records the position of a body’s
defined point within the three-dimensional space as a curve in
the result window or as a trace in the 2D view.
NEW TRANSMISSION SYNCHRONIZERS
Additional degrees of freedom for the level of modeling detail
and for more convenient modeling
In SimulationX 3.7, the library for real-time synchronizers
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SimulationX 3.7: What’s new?
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received new models for simple and dual synchronizers with signal input. In addition to the existing force-dependent
synchronizer models, you can now also model the shifting sequence conveniently as a signal input. This relieves you
of modeling any actuators and allows for a resource-friendly model abstraction.
UPGRADE OF THE HYBRID DRIVES LIBRARY TO THE NEW LIBRARY CONSUMPTION CALCULATION
Consumption optimizations of conventional, purely electric and hybrid vehicles
The library Hybrid Drives has been upgraded with model elements including starter, alternator and operating strategies for conventional and purely electric vehicles to the new library Consumption Calculation. In addition to hybrid
vehicles, fuel consumption of combustion engines and energy consumption of electric drives can now also be conveniently analyzed and optimized. Other new elements (including current limiter, mechanical loss model and new signal
blocks) further increase the level of modeling detail. Existing model elements have been enhanced for an improved
modeling experience. All model elements which include any kind of loss (combustion engine, electric machine, transmission, alternator and starter) can be parameterized based on the energy conversion efficiency and allow for their
energy efficiency to be calculated based on the parameterization through the electric power.
Hydraulics – extended application range and increased level of detail
Load control valves and load sensing controllers extend the portfolio of available hydraulic models. In addition to that,
the Hydraulics library includes pressure valves with different levels of modeling detail. There are also new hydraulic
clutch and brake models available to be used as actuators in transmissions or for mobile applications. Moreover, you
can use these model elements in safety systems for pressure drops or overloads.
Fig. 2: Sample model of a subsea control system with surface supply and communication using
SubSea Electrical model elements
SimulationX 3.7: What’s new?
The proven model for distributed lines now allows in SimulationX
3.7 also for the influence of external pressure to be analyzed.
Especially simulations with hose lines under extreme pressure
yield accurate results.
Over 250 extended and improved model types
Many model elements from 1D Mechanics, Hydraulics, Thermodynamics and Hybrid Drives have been upgraded with new
functionalities and performance improvements.
Accurate analyses of the mechanical performance also for
idealized modeling of collisions with rigid bodies
For analyses of energy flows in mechanical systems, SimulationX
3.7 returns accurate results also for ideal rigid bodies. In all
model elements of the 1D Mechanics and Power Transmission
libraries which include the rigid collision, the transmitted energy
is calculated accurately and is included in the power balance.
Steady-state heat exchangers: calculation of the latent heat
energy in moist air
Humidity has a significant impact on the efficiency of air conditioning and refrigeration systems. Up to 40 % of the entire
heat energy exists as latent heat. Model elements from the
SimulationX library Steady-State Heat Exchangers now also
take condensation heat into account for calculations of a system’s efficiency. This provides you with much more realistic
results for simulations of air conditioning systems, for example.
SimulationX 3.7 supports FMI 2.0 – More performance
and flexibility during model exchange and cosimulation
Besides the established FMI 1.0 standard (Functional Mockup Interface), SimulationX 3.7 also supports the new FMI 2.0
standard for both model import and export and also for co-simulation. FMI 2.0 lets you create FMUs with a CVODE solver
or choose a solver with a fixed step size. This allows you to
run such FMUs directly in hardware-in-the-loop environments
(HiL), such as dSpace Scalexio. It is also possible to save and
reset the FMUs’ states, which makes them suitable for training
simulators, for instance. The integration of FMI in SimulationX
has been completely revamped to increase the performance
and stability of simulations with FMUs.
New display and control elements enhance the range of
interactive simulation controls and result analyses
Interactive simulations for training purposes, for example, but
also quick and easy parameter changes during a running simulation are a lot easier in SimulationX 3.7 through an extended
range of display and control elements. Input fields, buttons and
selection menus, tables and diagrams (e.g. Sankey diagram) allow for custom-built simulators directly in the diagram view of
SimulationX. The combined diagrams let you display any number of variable lines, squares and process variables connected
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SimulationX 3.7: What’s new?
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to results variables. Typical application scenarios include thermodynamic cycles, engine maps and hysteresis loops.
Improved graphical user interface and usability
Whether you are a simulation expert or are just beginning to familiarize yourself with system simulation: With its
flexible graphical user interface and usability concept, SimulationX allows you to run conclusive physical simulations
of any complexity. Users who rely on interfaces for scripting and proprietary applications can work conveniently
with the text view, while others may feel more at home with the user-friendly menus of the graphical user interface.
The familiar graphical user interface has seen further improvements in order to increase usability and efficiency of
your workflow. Libraries that are not loaded initially, for instance, are automatically loaded once they are needed
when a model is opened. Moreover, it is possible to undock individual model views from the program’s main view
and put them on a separate screen leaving you with one entire screen for your diagram view only, while the other
screen shows the resulting 3D view. Also adding new modules is now even easier. Advanced users can create custom
add-ins for SimulationX with .NET and benefit from the text view’s improved outlining and an enhanced selection
of element types. Besides resetting a model’s simulation, SimulationX 3.7 now also allows you to reset the symbolic
analysis (GSA).
Safety Designer – Safety studies and reliability analyses for all system models in SimulationX
Whether you create your system model with elements from SimulationX libraries, the Modelica Standard Library
(MSL) or other Modelica libraries, the SimulationX Safety Designer uses the model structure as the basis for fault
tree analyses (FTA) and failure mode and effect analyses (FMEA). If you want to check a great number of variants,
run optimization calculations or intend to simplify the documentation, you can easily integrate error analyses into
automated workflows through the improved COM interface.
Optimized calculation methods for increased performance and range of applications
Faster computations are now possible in SimulationX 3.7 due to many improvements and optimizations in the program. Calculations with events at defined time steps or with nonlinear equation systems can now be performed much
faster and with increased stability. Also calculations of initial values for extremely nonlinear models in magnetics or
thermodynamics for instance have been improved significantly.
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SimulationX 3.7: What’s new?
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