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• Over 100 new and about 150 enhanced model elements

• Cleaner graphical user interface and parameter dialogs

• New application areas, such as microfluidics, non-Newtonian fluids and energetic analyses of urban districts

• Numerous extensions for mechanics, power transmission, electromechanics, hydraulics and pneumatics

• SimulationX e-Learning for self-study

• New and improved interfaces (e.g. OPC-UA)

SimulationX 3.8: What‘s new?

“With SimulationX 3.8, you can model, simulate and analyze technical systems faster and more easily than ever before. How did we achieve this? Additional powerful calculation methods, a fresh graphical user interface as well as new and enhanced model libraries are only a few highlights. Discover new application areas, such as non-Newtonian fluids or the simulation of medical equipment for toxicological and pharmacological analyses. Embed-ded in the portfolio of the ESI group, SimulationX offers you not only a proven solution for dynamic system simulations, but also the opportunity to benefit from interfaces with ESI‘s comprehensive software offers.”Dr. Andreas Uhlig, Managing Director, ESI ITI GmbH

Six new model libraries as well as numerous extensions of existing model collections pave the way to new application areas and reduce the modeling effort. Besides new elements and features in the traditional areas of mechanics, power transmission, elec-tromechanics, hydraulics and pneumatics, there is the new library Microfluidics allow-ing you to simulate and dimension microperfusion and lab-on-a-chip systems. Efficient computer simulations let you develop and optimize the physiological flow behavior of blood through different organs with the help of an artificial microcirculatory system. The new library Green City allows for modeling and simulating combined power and heat grids for urban districts and for analyzing the interactions between energy sourc-es, storage, lines and consumers. Take a giant step towards zero-carbon cities and develop eco-friendly and resource-efficient habitats.

The clean graphical user interface and parameter dialogs, more options for the vi-sualization of results and faster calculation methods are only some of the benefits beginners and longstanding SimulationX users alike will appreciate.

Fig. 1: Simulation model of a gantry crane with three-dimensional rope drives from the new library Belt Drives (MBS)

HIGHLIGHTS

• Over 100 new model elements

• 6 new libraries

• Belt Drives (MBS): Reliable analyses of three-dimensional belt and rope drives

• Hydraulic Brake Systems: Efficient development of brake systems for vehicles

• Green City: Efficient energy systems for urban districts

• Non-Newtonian Fluids: Simulation of hydraulic systems with non-Newtonian fluid properties

• Microfluidics: Virtual testing and dimensioning of microperfusion and lab-on-a-chip systems for toxicological and pharmacological analyses

• Hydraulic Lubrication: Reliable lubrication systems for transmissions and piston engines

• Completely overhauled: Electric machines and controls Convenient simulations of electric machines either as motor or generator

• Extension of existing libraries (excerpt)

• New, planar contact elements in the Mechanics and Power Transmission libraries

• Additional spring-damper models in the MBS Mechanics library

• Additional thermodynamic state charts: T-s and psychrometric charts

• New elements and features in the Heat Transfer library

• Extended libraries Power Generation and Air Treatment and Ventilation

• Extended library Torsional Vibration Analysis

• About 150 extended and improved model elements (excerpt)

• Humid gases: Additional fluid properties in the SimulationX Pneumatics library

• New fluids and functionalities in the Thermal Fluids library

• Additional preload options for all spring-damper and belt models from the Planar Mechanics and MBS Mechanics libraries

• Increased performance and more efficient workflows

• Faster load times for calculated simulation models

• Improved synchronization of different model views

• Calculation of compiled models with BDF and MEBDF solvers

• Clean graphical user interface

• Enhanced table editor

• Calculation of the transfer function through the COM interface

• New interface with OPC-UA

• SimulationX e-Learning: Quick introduction to the software for system simulation – whenever and wherever.

SimulationX 3.8: What’s new? 2 | 12

NEW MODEL LIBRARIES IN SIMULATIONX 3.8

BELT DRIVES (MBS)Reliable analyses of three-dimensional belt and rope drives

High-precision handling of complex rope and belt assem-blies, such as offshore heave compensation, requires ac-curate controls and clever engineering. Also in cranes, cable cars, in drives and during processing band-shaped materials, three-dimensional forces and vibrations act on the machinery.

Create detailed simulation models of three-dimensional rope and belt drives or winders and evaluate all interactions between belt or rope, input, output and controls efficiently and with ease. The simulation takes the belt’s elasticity, slack, slip between belt and pulley, vibration influences, the kinetic energy and the belt’s geometry into account. The properties of components can be parameterized conveniently with cat-alog and design data. Make use of the 3D view to check your model and to present your results.

HYDRAULIC BRAKE SYSTEMSEfficient development of brake systems for vehicles

Speed up the development of competitive hydraulic brake systems and single components, such as boosters. The de-tailed component models of hydraulic brake systems include accurate physical behavior, comprehensive modeling knowl-edge and longstanding experience from the automotive industry.

Determine forces in the brake cylinder and analyze the “ped-al feeling” during braking maneuvers. By linking the brake system model to a vehicle dynamics model, you can analyze the entire vehicle’s behavior with respect to stability during braking or ABS/ESP intervention for example.

GREEN CITYEfficient energy systems for urban districts

In order to meet the agreed climate targets and to reduce the oil dependence , renewable energy needs to play a big-ger role in the power management of buildings and indus-trial facilities. But also the available primary energy sources need to be used more efficiently.

Conclusive simulations with the new model library Green City help you understand the interactions between energy sources, distribution, storage systems and consumers also of complex energy supply systems. You can safely assess in-vestments for urban districts already during early conceptual phases and develop customized energy concepts to meet the requirements for all kinds of scenarios involving different energy sources, storage solutions and combined heat and power grids. Simulate electric, thermal and combined ener-gy grids with model elements for different types of power plants, environmental conditions, energy storage systems, charging infrastructures for electric vehicles, buildings and consumers.

Fig. 2: V belt of a car engine; the deflector pulley presses against the belt’s cover band.

Fig. 3: Model elements of the library Hydraulic Brake SystemsBooster, Master Cylinder, Brake Caliper, Brake Pedal

Fig. 4: Simulation model of a power and heat supply layout for a building complex with CHP plant consisting of elements from the Green City library


NON-NEWTONIAN FLUIDSSimulation of hydraulic systems with non-Newtonian fluid properties

Blood, shampoo, lotions, ketchup, drilling mud, polymer solutions and polymer melts, adhesives and paint: All these fluids and suspensions have completely different fluid prop-erties than ordinary Newtonian fluids, such as water, oil, gas-oline or alcohol. Consequently, the behavior of both element groups can differ significantly in technical hydraulic systems. The new library Non-Newtonian Fluids comes with all sorts of crucial base elements including lines, throttles, shear stress and fluid inertia allowing for any kind of non-Newtonian fluid system to be modeled and simulated. Fluid properties can be specified with various models including Power-Law, Bing-ham, Herschel-Bulkley or Casson.

MICROFLUIDICSVirtual testing and dimensioning of microperfusion and lab-on-a-chip systems for toxicological and pharmacological analyses

Microperfusion and lab-on-a-chip systems can help replace animal tests for many scenarios in the pharmaceutical and cosmetics industries as the physiological flow behavior of blood running through different organs can be reproduced and analyzed.

The development of such systems requires detailed knowl-edge of the behavior of non-Newtonian fluids , such as blood, in perfused systems with very small cross-sections. Due to the tiny dimensions, the ratio between surface and volume differs a great deal compared to conventional hydraulic sys-tems. The library Microfluidics has therefore been developed to address these very aspects.Create a model of your microperfusion or lab-on-a-chip system through drag and drop from specific elements in-cluding peristaltic pumps, cell cultures, nutrient sources and consumers, microchannels and other components. The flu-id for blood incorporates the Fåhræus–Lindqvist effect into the simulation calculating the transport of oxygen chemically bound to the red blood cells. Also substances which may have no impact on the physical fluid behavior, but are of im-portance for biochemical analyses, can be transported with the stream. The accuracy of the component models and of the simulated transport of substances and oxygen in artificial blood were validated against measured data.

Fig. 5: Model elements of the library Non-Newtonian FluidsPressure Source, Tank, Flow Source, Volume, Nozzle, Inductivity, Piston Area, Shear Stress (linear), Shear Stress (rotary)., Flow Sensor, Pressure Sensor, Pipe

Fig. 6: Model of an apparatus for hypoxia tests with human cell cultures consisting of elements from the library Microfluidics


HYDRAULIC LUBRICATIONReliable lubrication systems for transmissions and piston engines

Model lubrication systems for generators, machine tools, agricultural and construction machinery, for instance, or for turbines, engines and transmissions with the new library Hydraulic Lubrication. Model elements can be parameter-ized conveniently with catalog and design data. Develop wet sump systems fast and economically and ensure the correct flow rate for each part. Analyze the oil circulation and evalu-ate the pressure loss, flow rates and temperature behavior also for rotating channels with centrifugal forces.

ELECTRIC MACHINES AND CONTROLSConvenient simulations of electric machines either as motor or generator

The vastly extended and newly structured library Electro-mechanics provides both enhanced model elements of electric machines (including a doubly-fed asynchronous ma-chine) and new component models for inverters as well as comprehensive accessories for convenient electrical power and communication analyses. The inverter models are ready-to-use assemblies which you can easily parameterize with catalog data and the desired automatic controller action and connect it with the corresponding machine model through drag and drop. This enables you to create models of electric machines, which serve as a generator, without the need to have detailed knowledge in electrical engineering. Custom and tailor-made electronic controllers for electric machines can be modeled with base elements including sensors, volt-age sources, brake resistances or braking resistors or abc/dq0 transformations.

Fig. 7: Model of a doubly-fed electric machine with torque control; the inverter is represented by the new element Controlled Inverter for Doubly-Fed Induction Machines

Fig. 8: Section of a sub-model for a lubrication system in a four-stroke engine consisting of elements from the library Hydraulic Lubrication


EXTENSION OF EXISTING LIBRARIES (EXCERPT)

Based on technological advancements and customer re-quirements, SimulationX libraries are constantly improved and extended. Below is a selection from over 150 extensions and enhancements.

NEW, PLANAR CONTACT ELEMENTS IN THE MECHANICS AND POWER TRANSMISSION LIBRARIESEasy modeling in 1D, 2D and MBS Mechanics

You can model and simulate detents, locking mechanisms, disk cam mechanisms and indexers as well as dog clutches in manual transmissions fast and systematically with new con-tact elements from the 1D, 2D and MBS Mechanics libraries: Ring-Polygon and Polygon-Polygon (circularly rounded). Also the existing contact models have been revised in terms of computation speed and usability. A new detent model allows the detent ball to be detached from the surface and delivers highly accurate results.

ADDITIONAL SPRING-DAMPER MODELS IN THE MBS MECHANICS LIBRARYEasy parameterization and new analyses

Three new spring-damper elements let you choose between different parameterization methods in order to easily model and simulate three-dimensional springs and their behav-ior between two bodies or between one body and a fixed point. Besides the option to choose a Cartesian or a cylindri-cal coordinate system for the properties, also position and alignment of the inner coordinate system can be specified as needed allowing you to model and simulate real springs with different geometries. Nonlinear spring properties can be specified with characteristic lines for springs and dampers. Furthermore, it is possible to define symmetry properties, to set the initial preload with respect to available data and the given task and to conveniently determine the dimensions of a preloaded spring in relaxed state.

Fig. 9: Model of a detent with the new detent model Fig. 11: Detailed model of a Geneva drive including back-lash and blocker consisting of the new 2D contact element Polygon-Polygon (circularly rounded)

Fig. 10: New spring-damper elements for MBS mechanics3D Spring-Damper Backlash: (Cartesian direction), (cylindrical direction), (completely symmetric)


ADDITIONAL THERMODYNAMIC STATE CHARTS: T-S AND PSYCHROMETRIC CHARTSEfficient and intelligible system analyses of HVAC and power generating systems

In order to grasp the state of heat and cooling circuits quick-ly, state charts are the tool of choice. In addition to p-h and h-s diagrams introduced with SimulationX 3.7, you can now also use T-s diagrams (to determine the conversion efficiency of Carnot processes) and psychrometric charts (to visualize the state of humid air). Evaluate processes efficiently and conclusively already during simulations with the help of clear animations.

NEW ELEMENTS AND FEATURES IN THE HEAT TRANSFER LIBRARYNew base and component models as well as advanced functionalities for steady-state heat exchangers

Plate and fin heat exchangers have a compact structure and a high conversion efficiency also for small temperature differ-ences. The new model element Plate and Fin Heat Exchanger can be parameterized conveniently with geometry data and lets you simulate intercoolers for vehicles or heat exchang-ers for engines in rolling stock, for air conditioning systems in airplanes or for cryogenic processes for air separation.New base elements, such as External Flow and General Ra-diation, extend the spectrum of applications for the Heat Transfer library in a number of thermodynamic processes. For applications with great thermal inertia, i.e. defined con-stant ambient temperature, such as refrigerators, under-floor heating and geothermal heat pumps, all steady-state heat exchangers can be operated with only one fluid stream. Modeling and calculating free flow is now easier, and you can simulate heat transfer onto solid bodies (e.g. below grade pipes) and include the heat exchanger’s heat capacity in your analyses.

Fig. 12: Example of a psychrometric chart in the SimulationX diagram view

Fig. 13: Example of a T-s diagram in the SimulationX diagram view

Fig. 14: New element of a plate and fin heat exchanger from the model library Steady-State Heat Exchangers


EXTENDED LIBRARIES POWER GENERATION AND AIR TREATMENT AND VENTILATIONEasier modeling with a greater choice of models

The new model element Steam Turbine – especially suited for heat cycles in steam power stations, CHP plants, nuclear and solar thermal power stations – calculates the mechanical power generated by the available steam flow.

With models from the SimulationX Pneumatics library, you can now also simulate the behavior of humid gases. You now have two new elements for HVAC applications and process engineering at your disposal: Evapo-ration From Open Water Surface and a Humidifier for modeling water and steam injections. This enables you to describe drying processes or the variable water fraction in gases.

EXTENDED LIBRARY TORSIONAL VIBRATION ANALYSISEasy and efficient modeling of frequency-dependent clutch behavior in steady-state simulations

Model frequency-dependent clutch behavior especially for ship power-trains fast and conveniently with new elements from the library Torsional Vibration Analysis. Based on characteristic maps for complex elasticity be-havior, you can integrate the desired clutch behavior into your powertrain model through one of the three new elements. Apart from the frequency, you can also include other variables which have an impact on the elastic-ity, such as temperature.

Fig. 15: Model of an air conditioning system with humidifier and psychrometric chart illustrating the thermodynamic process

Fig. 16: New elements in the library Torsional Vibration AnalysisSpring-Damper (based on frequency response), Spring-Damper (based on frequency response and temperature), Frequency Response


Fig. 17: New properties dialog Humidity for pneumatic elements

Fig. 18: Selection of a table-based gas for a thermal fluid system

Fig. 19: Properties dialog for the preload of a spring or belt model from the Planar or MBS Mechanics libraries.

ABOUT 150 EXTENDED AND IMPROVED MODEL ELEMENTS (EXCERPT)

Discover the many new features within existing model elements. Explore new perspectives and benefit from an increased modeling efficiency.

HUMIDITY IN ALL ELEMENTS OF THE SIMULATIONX PNEUMATICS LIBRARYControl the humidity in air and gases for industrial processes and HVAC systems

In the fields of HVAC and process engineering, the level of humidity in the air or in industrial gases has a great impact on the human comfort or a product’s quality. It also influenc-es the thermal balance of condensing steam in the air or in gas, for example in air coolers or condensing boilers. Gases and gas mixtures in the SimulationX Pneumatics library can now take the influence of humidity into account during a simulation. Analyze the condensation behavior within your thermal systems and obtain accurate simulation results.

NEW FLUIDS AND FUNCTIONALITIES IN THE THERMAL FLUIDS LIBRARYBroader application spectrum and better usability in thermal fluidics

The new table-based fluids R290 (propane), R32, R404A and R600a (isobutane) make the model elements from the Ther-mal Fluids library available to a broader application spectrum in HVAC and refrigeration engineering. With the newly devel-oped model element Filler, you can determine the optimal refrigerant level for your system automatically and obtain the required initial values to calculate the thermodynamic cycle.

ADDITIONAL PRELOAD OPTIONS FOR ALL SPRING-DAMPER AND BELT MODELS FROM THE PLANAR MECHANICS AND MBS MECHANICSIncreased modeling comfort and enhanced analyses

Both the Planar Mechanics library and the MBS Mechanics library now offer a broad selection of various preload op-tions for all spring-damper and belt elements based on the available data – including a relative preload. Moreover, it is possible to derive the dimensions of a spring-damper or belt in relaxed state from the given parameters of the preloaded state.


INCREASED PERFORMANCE AND MORE EFFICIENT WORKFLOWS

Through an array of improvements to the software platform, the performance during loading cycles for models, the modeling process and the simulation could be increased significantly.

FASTER LOAD TIMES FOR CALCULATED SIMULATION MODELSQuick loading of models with comprehensive result and animation data

While unexecuted SimulationX models are usually not larger than one megabyte, simulated models with many results and animation data can easily grow to several gigabytes. In SimulationX 3.8, such data is no longer loaded when the model is opened, but only when it is actually needed. The time you have to wait until you can view and edit your model could thus be cut down to a matter of seconds.

IMPROVED SYNCHRONIZATION OF DIFFERENT MODEL VIEWSFaster workflows in the model code with the help of the text view

Simulation models can be edited in different view simultaneously: diagram view, text view and the 3D view. Changes made in one of the views or the SimulationX TypeDesigner are now translated into Modelica code three times faster. Especially, advanced users benefit from an accelerated workflow.

CALCULATION OF COMPILED MODELS FOR BDF AND MEBDF SOLVERSIncreased computing power now up to 10 times faster

Simulation models can now be calculated either with or without a prior compilation by the BDF (Backward Differentiation Formulas) or MEBDF (Modified Enhanced BDF) solvers. Depending on the model properties, the computation time with a compiled model can be a fraction of the time needed with conventional BDF and MEBDF methods. You can now enjoy the same benefits with the BDF and MEBDF solvers that you are already used to from the CVODE solver and the solver with constant step size. You can of course still use the old BDF and MEBDF methods.

MODELICA®

MODELICA®

BYTECODE

C CODE

RESULTS

RESULTSMACHINECODE

GSA

GSA Compiler Simulation

Simulation

BDF/MEBDF method with internal solver:

BDF/MEBDF method with compiled C code:

Fig. 20: Illustration of the simulation with the BDF or MEBDF method with and without compilation


CLEAN GRAPHICAL USER INTERFACEFor efficient modeling and conclusive analyses

The updated menu icons for better visibility and usability give you a better overview of the program’s functional-ities allowing for a quicker and more systematic workflow.

In the properties dialog of a model, clear symbols let you now recognize the data type for each parameter at a glance. This data can be real numbers, integers, Boolean variables or strings. The color of a symbol designates a parameter’s variability, i.e. whether it is a constant, a constant parameter, a variable parameter or just a variable.

Axes in the result window can now be placed on either side – at the top or bottom and on the left or ride side. Easily select the layout which serves your purpose and shows your simulation results most appropriately.

ENHANCED TABLE EDITOREasy verification of multidimensional parameters in the properties dialog

The table editor in a model element’s properties dialog lets you now display and check the result of multidi-mensional parameters (e.g. vectors and matrices) in a clean table regardless of the data type and also allows you to change values and strings. Such parameters can contain the data types real numbers, integers, Boolean variables or strings. But also expressions, such as functions, operators and symbolic values (e.g. π pi or e exp), are supported.

CALCULATION OF THE TRANSFER FUNCTION THROUGH THE COM INTERFACEEfficient calculation of the transfer function as part of automated simulations

In order to parameterize and simulate models or to read out results automatically with the help of scripts, you can draw upon the proven COM interface in SimulationX. Version 3.8 introduces an option that lets you also determine the transfer function through the COM interface for controllers, acoustic signals or vibration analyses for example. This method saves you time especially during analyses of nonlinear systems at different operating points. Just as efficiently you can also analyze a transfer function’s dependency on various parameter values.

NEW INTERFACE WITH OPC-UAExchange between SimulationX models and industrial control systems and other data sources for virtual commissioning, for instance

OPC is the standard for exchanging data in automation engineering. SimulationX 3.8 comes with an interface allowing you to connect a SimulationX model with OPC-UA server points in order to exchange data in real-time. You can design the controller layout for plants and machinery fast and adequately with respect to the com-missioning process saving you time and money from start to finish. Moreover, you can test disastrous and emergency situations cost-efficiently in a virtual environment and for realistic conditions without putting man or machinery at risk.

REAL INTEGER BOOLEAN STRING unknown undefined

Variable

Parameter

Constant Parameter

Constant

Initial Value

Fig. 21: Additional information for the data types in the SimulationX properties dialogs


SIMULATIONX E-LEARNINGQuick introduction to the software for system simulation – whenever and wherever.

In addition to the well-established courses at the ESI ITI Academy and our on-site training offers, you can now take advantage of our e-learning platform for basic training on SimulationX. Learn the basics of system simula-tion quickly with the help of visual and interactive material as well as practical exercises wherever and whenever you want. Should you have a question, our experienced trainers will be there for you through the Helpdesk or in our monthly online consultations.

Fig. 22: SimulationX Training S1: SimulationX Fundamentals as an e-Learning module for self-study


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ESI ITI GmbH Schweriner Straße 1 • 01067 Dresden • Germany [email protected] • T + 49 (0) 351.260 50 - 0 • F + 49 (0) 351.260 50 - 155 SimulationX www.simulationx.com

Doc.-Vers.:11/2016_2

Download - SimulationX 3.8: What's new? · age sources, brake resistances or braking resistors or abc/ dq0 transformations. Fig. 7: Model of a doubly-fed electric machine with torque control;

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