2012/12/18 | 24319次阅读 | 来源：ANSYS 发表评论
ANSYS的总裁兼CEO Jim Cashman指出：“今天的产品越来越智能，同时也越来越复杂，这已经不是什么秘密了。人们需要对产品要求和设计进行整体了解，这一点至关重要，有助于降低设计不确定性，并最终推出成功的产品。我们的客户依靠ANSYS 14.5和Workbench提供的深度和广度信息，可以预测其产品的实际运行表现，并最终为其客户提供出色的价值和满意度。”
具体而言，HPC Parametric Pack能放大单个应用（预处理、网格剖分、求解、HPC、后处理）的许可证范围，只需一组应用许可证即可同时执行多个设计点。
ANSYS 14.5的最新CPS设计流程将ANSYS 子公司Apache Design的集成电路（IC）功率分析产品与ANSYS电磁场仿真产品相结合。此外，功率输出网络通道构建器能自动将ANSYS SIwave™电子封装模型连接到Apache RedHawk™和Totem™中的IC功率仿真，从而提高设计便捷性。
用户可利用ANSYS 14.5更快地建立更高保真度的仿真结果。ANSYS TGrid™功能已被集成到14.5版本的ANSYS Fluent® 环境中，能进一步缩短预处理时间。CAD阅读器和最新的高级表面网格剖分功能也被集成到新产品中，并可在单个用户环境中使用。此外，网格剖分功能的加强还有助于建立更高质量的六面体网格，这样能减少问题规模和总体求解时间。
作为多物理场创新传统的延续，ANSYS 14.5推出了扩展的流体-热学功能，例如ANSYS Fluent®流体仿真与ANSYS Maxwell®电磁场仿真之间的双向耦合。ANSYS Workbench平台支持多种物理模型的高效耦合，搭配最新特性后，能帮助用户快速准确地预测损耗并理解机电设备（如电机和变压器）中温度对材料性能的影响。
作为单向热流体结构互动（FSI）整体解决方案，ANSYS System Coupling现在可支持多种单向热FSI工作流程，能实现更高保真度的仿真。此外，耦合双向力/位移FSI的健硕性也得到了增强，使工程师能够更快地对整体产品进行深入了解，减少麻烦。全球流体食品包装和处理设备厂商Tetra Pak在14.5最新双向FSI功能的帮助下取得了大幅提升。
Tetra Pak公司的Ulf Lindblad指出：“历史上看，双向FSI的仿真非常消耗时间，过程非常复杂，在某些应用中甚至是不可能实现的。ANSYS 14.5采用的解决方案稳定算法使我们可以在更广泛的应用范围内更精确更高效地执行这个困难任务。使用最优的FSI进行系统设计，有助于我们为客户实现更高的设备性能，并为消费者带来更出色的包装效果。”
ESTEREL TECHNOLOGIES SCADESUITE®结合ANSYS SIMPLORER®
近期，Esterel Technologies公司被ANSYS并购，该公司的SCADE套件也被集成到14.5软件的ANSYS Simplorer中，这样客户就可以将SCADE套件生成的嵌入式软件与Simplorer生成的电子、机械和流体子系统等硬件模型结合在一起，从而在设计进程的早期以虚拟的方式对电力电子和机电系统进行验证。这种功能提高了客户设计的保真性，也提升了客户对于产品在现实世界如期运行的信心。
由于各个公司都亟需提高对现有工程资源的利用率，为此ANSYS 14.5进一步优化了设计流程并推出面向ECAD的HFSS。这种功能可帮助工程师直接在基于ANSYS Designer®布局的界面或其他流行的布局型ECAD环境中直接运行复杂的3-D HFSS仿真，有助于提高仿真精确度。
Teraspeed Consulting Group LLC的工程设计总监Scott McMorrow采用其他公司的电磁建模和仿真产品已有将近10年时间，最后决定改用ANSYS HFSS、Designer SI™和SIwave™产品。“我们将ANSYS产品与多种业界产品进行了长达两年的全面评估和检测对比，比较结果显示ANSYS解决方案能针对最广泛的应用和结构实现高健硕性的精确仿真。我们通过详细的检测测试发现，HFSS的确是电磁建模中的‘黄金标准’。只要对检测结构进行准确建模并精确定义和输入材料属性，ANSYS HFSS就能实现极其精确的结果，不会出现明显的检测结果与建模结果差异。”
You can easily create 3-D layered composites from complex geometry and conveniently combine such models with noncomposites parts in global assemblies. The capability in ANSYS Mechanical consumes solid composites from ANSYS Composite PrepPost for further analysis; in explicit dynamics, enables modeling composites created with Composite PrepPost; in Mechanical, allows you to assemble multiple upstream meshes coming from Composite PrepPost and mechanical model sources; and the ability to post-process the result in Composite PrepPost.
Customization of Processes
The Application Customization Toolkit (ACT) enables you to create your own loads, boundary conditions or results within the Mechanical environments and expose existing scripts in a user-friendly environment. Your team can use the Mechanical environment to integrate in-house solutions into its simulation workflow.
ANSYS 14.5 introduces a user-friendly crack modeling tool that allows computation of crack characteristics, such as stress intensity factors, energy release rates and J-Integrals. In a Mechanical model, a crack can be inserted after the meshing operations. The available shape is an ellipse with control over major and minor radius. A proper crack mesh is then automatically introduced in the model and subsequent analyses include the crack. You can eventually combine submodeling with crack analysis.
Mapped Boundary Conditions from External Files
The mapping function provides parallel capabilities that lead to a speedup factor of six to seven. In addition, you can map more data, including forces and displacements. The technology provides a parallel implementation of the Kriging mapping. Additional improvements include the ability to access archive cdb files to use the element shape function to improve results interpolation.
ANSYS 14.5 includes tools so that advanced users can better control their model; it also provides more flexibility in model setup. For example, cyclic symmetry analyses include remote points, point masses, thermal point masses, remote displacements, forces and moments. Constraint equations are also allowed. Force and moment reaction are available.
Selection of nodes is available from a post-processing view. Reaction probes are available from surfaces defined as construction geometries. Sum of forces and moments are computed on the surface from a user-selected set of bodies. Reaction probes have been extended to springs, beams, remote points and mesh connections (useful for welding). Fluid pressure penetration results are available.
Detailed Control for Contact Models
The technology increases the control that users have over contact properties. You can define most of the contact properties as a function of many variables, even for multiphysics applications.
For contact, all real constants of contact elements support tabular definitions based on variations of time, temperature, contact pressure and gap/penetration. Advanced users can benefit from improved user-defined contact interactions and friction (including multiphysics). Real constants can be defined with user subroutines to create additional dependencies on additional parameters, such as penetration or state variables.
In terms of mechanisms, you can easily model clearances between shaft and bearing. This feature is available on spherical, general and bushing joint and defined by geometry dimensions (inner/outer radii, height). For efficiency and robustness, the clearance models do not use contact.
The release includes no-separation contact and a “forced-frictional sliding” contact, which is a simplified frictional contact without “sticking” state (resisting force).
Improved Robustness for Explicit Dynamics Solutions
Analysis setting includes a drop-down menu for selecting the analysis type to be run from four different options. Based on the selection, values used for time step calculation, mass scaling, precision, element type, limits, output controls and other parameters are preset for the user.
You can consider reduction in product life from relatively constant high temperature as well as transient large thermal cycles with ANSYS nCode DesignLife. Multiple methods handle high temperature analysis solutions using stress life, strain life and other specialized methods for accurate damage assessment.
Large and Complex Model Performance
ANSYS Structural Mechanics introduce a number of tools at the UI level to help users simplify model setup by efficiently creating and navigating large amounts of simulation data. You can solve models more efficiently using parallel computation — especially GPU boards — and user-friendly submodeling techniques. The technology improves post-processing through faster displays and reduced results files size. Geometry import and manipulation are significantly improved, with import times reduced by a factor of roughly two to four.
Setup tools include a tree filtering capability that allow you to filter the tree based on tags or names. A random colors option enables view of all loads and boundary conditions with a different color for each. Once a load, boundary condition or contact has been created, you can select a number of other geometric entities on which the load/BC/contact needs to be duplicated. Various options are available with respect to naming the duplicated loads or grouping of geometric entities. Connections can be duplicated in the same manner; a connection worksheet presents all or part of the contacts and connections in an entire assembly in a matrix form.
Solving includes generalized support of the fast iterative PCG solver for joints. A remote solve file management/performance improvement offers a results file combination so users can combine results file to post-process while a simulation continues, or for downstream analyses or archive purposes. Combining files is often significantly faster (up to 10 times), particularly on systems running Microsoft Windows.
Submodeling has become a native ANSYS Workbench capability, allowing zooming in on a design’s critical portions to improve results accuracy locally, without the need for a fine mesh on entire assemblies. Submodeling works for linear and nonlinear analyses, and it includes the ability to import temperature fields.
HPC performance advancements include acceleration of job solution time with multiple GPUs, providing an increase in scalable performance versus use of a single GPU. Large models that exceeded the memory capacity of a single GPU and disallowed its use can now fit with multi-GPU memory and benefit from acceleration.
Faster radiation solving for thermal analyses increases speedup two to four times.
In post-processing, on average, users will see a reduction of the results file’s size by a factor of two from using single precision storage. Many options control the amount of results that will be stored. Additional options are available for harmonic and transient analyses to store nodal reactions only at constrained nodes rather than on the full model.
Concerning performance of post-processing in mechanical for cyclic structures, users can see up to 60 percent additional speed in producing animations. A view management panel enables you to store predefined views and reuse them to quickly create similar views of any model.
Integrated Advanced Meshing
Release 14.5 incorporates ANSYS TGrid meshing within the ANSYS Fluent environment. As a result, you can seamlessly engage all TGrid functionalities to create a mesh and transition to Fluent pre-processing, solver, and post-processing capabilities without leaving the Fluent environment. A user can increase the resolution of simulations and reduce data transfer times by half when compared to file-based data transfer.
Because Fluent meshing combines Workbench CAD import capabilities with TGrid functionality inside Fluent, users can access many capabilities from a single environment:
Read in multiple CAD models of different formats concurrently (including subdirectories) using a single command
Use STL (stereolithography, or standard Tessellation language) files, surface meshes, and legacy meshes, alone or in combination with CAD geometry; extract fluid volume(s) easily thanks to GUI-specific face capping tool
Create fluid domains (bounding boxes and cylinders) to represent fluid volume around the product to be studied
Use advanced size functions (curvature and proximity sizes at global and local levels, with controls on max and min sizes, etc.) as well as body-of-influence controls, to generate high-quality surface meshes (advancing front) and volume meshes (Cut-cell meshes)
Use the wrapper tool as a combined geometry simplification and surface-meshing tool to combine wrapped and non-wrapped sections in the same model, or wrap at a finer size level to capture all geometry details and then mesh at a coarser resolution; use additional tools to perform geometry cleanup (closing gaps between bodies of the geometry) and to create thin sections like mid-surface baffles
Sew meshed parts together to form conformal, high-quality surface meshes using cut-cell technology
Access state-of-the-art inflation technology, resulting in high-quality, smooth boundary layer meshes, as well as state-of-the-art tetrahedral and hexcore technologies resulting in high-quality volume
Smart shape optimization includes solutions that automatically determine the optimum shape, thus eliminating the tedious task of defining and entering geometrical parameters. Additionally, mesh morphing enables skipping geometry and remeshing steps during optimization, dramatically compressing the optimization process.
Using the improved Fluent mesh morpher and optimizer, you can connect to ANSYS DesignXplorer and leverage both the design optimization/exploration capabilities from DesignXplorer and the power of Fluent mesh morphing. Furthermore, the tool is easier to use: The GUI is entirely reorganized, and the control region generation process is improved.
Adjoint solver observables are extended to automatic (mass flow rate, pressure and total pressure integrals with different weighting schemes, flow uniformity) and combinations of observables (sums, differences, ratios, linear combinations of powers, variances). The range of applicability of the adjoint solver is extended further by supporting translational and rotational periodic boundaries. The post-processing is improved for better and faster results evaluation.
In ANSYS 14.5, simulation monitoring and control is easier. Fluent as a server allows you to drive execution of a Fluent simulation from any other application of your choice. This opens doors to new ways of using the power of Fluent simulation by integrating its capabilities with other design tools. New communication procedures allow Fluent to be run in a server mode using an user interface in Matlab, Simplorer, Excel, or another program to set up the simulation and kick it off. The custom-written user interface can use application- and company-specific terminology as well as limit the access the intended user has to Fluent settings.
Fluent solution monitors (for example, lift and drag monitors) are displayed directly in the Workbench environment while running the calculation in the background, making it easier to identify the convergence status of the solution.
Monitors (surface, volume, lift, drag or moment monitors) can be used as convergence criteria, allowing more than one factor to be used to automatically judge convergence (monitors plus residuals) or for monitors to be used instead of residuals, thus ensuring that the simulation converges to the user-desired criteria. Monitor-based convergence criteria can be particularly useful to stop the solution when the monitored results are no longer changing appreciably, even though the residuals are still dropping, saving valuable simulation time by not running for more time than required.
Internal Combustion Engines
The IC engine analysis system includes full intake and exhaust port-flows analysis, further automatic setup of some aspects of the simulation based on established best-practices, and improved ease of setup of different configurations and mesh quality.
Using this application, the time from initial geometry to simulation start takes just minutes, as the tool unifies and simplifies the setup and solution of internal combustion engine simulations by automatically decomposing engine geometry, creating mesh, setting up cold-flow simulation including dynamic mesh, and creating a preliminary report in ICE-specific terminology. Users can gain additional insight into engine performance via parameterization studies within Workbench.
Advanced Physics for Specialized Applications
ANSYS 14.5 includes tools for better emissions predictions, better prediction of multiphase phenomena, free surface flows and key capabilities for aero-acoustic simulations.
When modeling free surfaces, you can simulate the complete range of wave regimes including cnoildal and solitary waves and model the superposition of multiple waves. Transient profiles for wave inputs, surface tension as a function of other variables, like species concentration, and compressible liquids can be included, improving the accuracy of free-surface simulations when the real world dictates that these characteristics be included.
In the area of combustion and reacting flows, pollutant modeling includes a premixed laminar flamelet model appropriate for super-equilibrium species, in particular CO. In the area of real gases, they can be used in conjunction with the partially-premixed model, and the liquid or the vapor phase can be selected in the sub-critical regime.Acoustics phenomena are extremely important in many applications. When you use computational acoustics, computing the source and propagation of acoustic waves directly in the fluid simulation, accurate boundary conditions are needed. ANSYS 14.5 introduces a full range of nonreflecting boundary conditions (NRBCs) for the pressure-based solver to ensure greater accuracy of the acoustic computations. This is especially important for companies developing gas turbine combustion systems, in which combustion dynamics can be accurately predicted only if NRBCs are used. The conditions are available for velocity and pressure outlet as well as velocity, mass flow and pressure inlets. NRBC is fully compatible with species transport and combustion in the pressure-based solver.
When modeling gas–liquid systems, a degassing boundary condition can be used to model a free surface from which dispersed bubbles are permitted to escape but the liquid phase is not. This capability provides faster turnarounds when compared with conventional approaches and can be used for all gas–liquid flow systems. Lift force, drag force, wall lubrication force, turbulent dispersion and turbulence interaction models for gas–liquid systems are available as well, enabling choice of the models most appropriate for the particular situation. These forces and interactions affect the vertical velocities and gas holdup in operations like bubble columns and gas sparged mixing tanks. Including them enables better prediction of the dispersed phase dynamics.
ANSYS 14.5 includes options that improve modeling of particles in gas–solid and liquid–solid systems. These include the ability to post-process cell-averaged DPM quantities, the sampling of DPM particles on user-defined bounded planes, and extensions for cone injections that benefit internal combustion engine applications in particular. For simulations with a dense concentration of solid particles, a granular temperature based on particle statistics improves granular temperature and collision predictions, and a parcel release method more appropriate for injections for DEM and spray simulations is available.
The Eulerian wall film model includes coupling the Eulerian wall film model with the mixture and Euler multiphase model, including thermal coupling, as well as condensation and vaporization modeling. These extensions benefit applications like running wet and run-back analysis of aircraft components with heat transfer, aerospace in-cabin condensation, and automotive fogging/defogging of windshields.
The computational expense associated with turbomachinery transient simulation is dramatically reduced with transient blade row (TBR) model enhancements. With ANSYS 14.5, it is significantly simpler to assess aero-elastic damping, making blade flutter analysis much more efficient and practical — including transfer of data from and to corresponding structural analyses. Another addition is the support for steam as the working fluid in TBR simulations, opening the door for using these powerful models in steam turbine applications.
Enhancements have been made to the complementary toolset for turbomachinery design and analysis, including:
Ability to visually compare new blade geometry designs against previous or reference designs in ANSYS BladeModeler
Improvements to the powerful ATM method for generating highest-quality blade row meshes in ANSYS TurboGrid
Integration of Vista CPD for preliminary centrifugal pump design directly in ANSYS Workbench
Enhanced system-level workflow among turbomachinery tools
Better, Faster, More Robust Simulations
Key improvements in the solver numerics allow for better simulation robustness include node-based gradients accuracy improvements for nonconformal interfaces and compatibility with polyhedral meshes, consistency of local scaling of residuals for unsteady flows and compatibility of mass flow periodics with the coupled, pressure-based solver.
Assessment of the potential for the use of GPU in industrial CFD applications continues. You can perform view factors and ray-tracing (radiation) computations on GPUs, leading to dramatic reduction in computational time for these steps in the simulation. You also can write UDFs to take advantage of GPUs.
The improvement of physics-based load balancing for the discrete particle-tracking models allows for computation speedup by a factor of up to four. Improvements in the area of DPM memory management further improve the scalability of simulation with DPM. This means that large simulations can be more scalable, even when using 1,000+ cores. Robustness improvements for DPM increase throughput for these simulations.
Polyhedra conversion performance improvements are 25 percent faster for many cases — up to 2.5 times faster for certain meshes.
For combustion applications, automatic PDF grid refinement and second-order interpolation of table data allow for a reduction of about 25 percent in the total simulation time. There is a noticeable speedup for the pollutants model in the mixture fraction-based combustion models (both NOx and soot).
HPC case file I/O optimization offers up to 20 percent faster simulation files read operations.Improvements for Eulerian wall film modeling in adaptive time-stepping speeds up transient calculations.
Simulations that include radiation models benefit from code refactoring that decreases case read times with the surface-to-surface model, speeds up ray-tracing view factor calculation for large industrial cases, and resolves hot-spot issues for complex underhood cases. Users of the surface-to-surface radiation model can also save computational time and memory by reducing the modeled geometry size using periodic boundaries.
Extended Fluid–Structure Multiphysics Capabilities
ANSYS 14.5 allows for two-way coupling between fluids (ANSYS Fluent) and electromagetics (ANSYS Maxwell) simulations. In addition, one-way thermal fluid–structure interaction (FSI) is easier to set up due to availability in ANSYS system coupling. The robustness of coupled two-way force/displacement FSI has been greatly improved, allowing engineers to gain an insight into their complete products faster and with less hassles.
System coupling manages one-way thermal FSI between Fluent and ANSYS Mechanical via an external data connection to system coupling. This one-way FSI can be either from fluid to structure or structure to Fluid. Information such as heat flow, wall temperature, heat transfer coefficients from sources like ANSYS Mechanical, CFD-Post, third-Party solvers, Excel spreadsheets, etc. can be mapped to either Mechanical or Fluent.
The robustness of the force/displacement FSI simulation is improved by stabilization via compressibility correction for two- way FSI with systems coupling.
New Licensing Solution for Parametric Studies
Performing simulation studies on many parameters results in dozens or even hundreds of required designs to evaluate. To speed the process, ANSYS offers a robust set of tools for parametric simulation. A key part of this solution is a new licensing product: The ANSYS HPC Parametric Pack amplifies the available licenses for individual applications (pre-processing, meshing, solve, HPC, post-processing), enabling simultaneous execution of multiple design points while consuming just one set of application licenses. Following the structure of the ANSYS HPC Pack license used to deliver scalable parallel processing for single jobs, the ANSYS HPC Parametric Pack license scales the user’s ability to run multiple simultaneous parametric analyses.
Improved Job Scheduling Environment
ANSYS 14.5 improves the process of HPC and robust design exploration by providing more capable and robust job submission/scheduling. The remote solve manager (RSM) can submit multiple design-point jobs, with each job executing on multiple parallel processing cores with third-party job schedulers. The speed of RSM file handling has been improved, so multiple jobs can robustly transfer data across the network to remote computational resources. A new installation and configuration wizard simplifies deployment of RSM in the HPC environment.
ANSYS has engaged with NVIDIA, the leader in GPU computing, to leverage GPU technology to accelerate solver technology. ANSYS 14.5 extends this feature to multiple GPUs per machine, resulting in an increase in scalable performance versus use of a single GPU. In addition, large models that exceeded the memory capacity of a single GPU (and disallowed its use) fit with multi-GPU memory and benefit from acceleration. ANSYS Mechanical customers can interchangeably use CPU cores and multiple GPUs — on a workstation or on a GPU-enabled server — to accelerate most simulation workloads. With ANSYS Fluent, view factors and ray-tracing (radiation) on GP-GPUs are fully supported features, leading to dramatic reduction in computational time for these steps in the simulation. Users can write UDFs to take advantage of GPUs.
Application Customization Toolkit (ACT) for ANSYS Mechanical
ACT enables the creation of vertical applications that capture domain-specific requirements and engineering know-how in the ANSYS Mechanical environment, delivering a unified workflow with the full benefit of ANSYS Workbench (closed-loop, parametric optimization; persistent, associative CAD integration; multiphysics, etc.), and tailored ease of use. Users can introduce customized pre- and post-processing features, encapsulate APDL script, expose MAPDL solver functionality, and integrate third-party components with the skill set of an application engineer versus deep development expertise.
Custom User Interfaces for Process Automation
In the ANSYS Engineering Knowledge Manager (ANSYS EKM) Studio application, a user no longer requires manual scripting to generate custom UIs for process templates. The release offers a code-free, drag-and-drop user interface design and prototyping tool for creators of process templates. This includes a standard library of common UI widgets — which results in faster time to completion and increased productivity.
EKM Workbench Integration
Efficient send/get changes operations ensure that when a Workbench project is updated locally and changes are sent to the EKM repository from Workbench, only the changed/modified files are updated in the repository. Tighter integration, along with the revision control and set alerts options with Workbench, facilitates collaboration with ongoing projects and allows multiple users to leverage work that is being done by colleagues.
Enhanced Solvers for ANSYS HFSS
For integrating systems such as satellites, aircraft, automobiles, and communications infrastructure combined with multiple antennas and communication systems onto a single platform, ANSYS HFSS is capable of handling the complexity and large problem size. Advanced methods in HFSS include improved matrix solvers, better scalability for HPC computing, improved mixed-order solutions and a distributed direct matrix solver. These enhancements allow HFSS to remain the gold standard with regard to accuracy and solving the largest and most challenging electromagnetics problems in the shortest amount of time.
ANSYS HFSS for ECAD
Electromagnetics solutions must provide precise results within customer’s design flow. To streamline the customer’s experience, the HFSS for ECAD approach allows engineers to run complex 3-D HFSS simulations from a layout-based, ECAD environment. HFSS incorporates a faster mesher in the setup and an improved layer stackup dialog. The technology allows users to embed circuit elements directly from layout in an HFSS for ECAD simulation.
Wireless and Antenna Solution
HFSS has an improved current array simulation capability with the addition of an arbitrary array mask, allowing composite excitations, phase center calculations and arbitrary slant polarization far-field plotting. The technology also enables you to perform full-array visualizations. For the handheld smartphone segment, additional capabilities ensure hearing-aid compatibility and multi-in, multi-out (MIMO) calculations.
HF Electromagnetics to Structural Coupling
Fully coupled electrothermal-stress simulation is easier since you can link ANSYS HFSS to ANSYS Mechanical within ANSYS Workbench. Electrical loads computed by HFSS are passed to ANSYS Mechanical, which then can be used to simulate temperature increases and associated deformation of the geometry. Those deformations can then be passed back to HFSS to allow further electromagnetic simulations and to evaluate the effect of the deformations.
Integrated Solution for Electrical Machine
For the motor design segment, ANSYS RMxprt provides a full analytical solution for interior permanent magnet (IPM) topologies that are popular in hybrid and electric vehicles. ANSYS Maxwell includes improved meshing for the 2-D transient solver with a better and faster general-purpose mesher. TAU mesh technology is available in 2-D for motor cross sections; it provides a higher quality mesh with greater speed for complex models. It also provides auto-healing for dirty models. A novel pseudo-clone mesh creates identical mesh for symmetrical motor designs to increase accuracy and speed solution. Maxwell 3-D magnetic transient analysis is accelerated with HPC functionality using multicore, shared-memory simulation.
Esterel–ANSYS Simplorer Coupling
A systems-level engineering approach that brings hardware and software together earlier in the design process is crucial to avoiding design errors being introduced at a point when changes are costly.
With the integration of recently acquired ANSYS subsidiary Esterel Technologies’ SCADE Suite with ANSYS Simplorer in version 14.5, companies can virtually validate power electronic and mechatronic systems earlier in the design process by simulating the embedded software with the hardware, including electrical, mechanical and fluidic subsystems. This capability increases the design fidelity and boosts confidence that products will perform as expected in the real world.
Advanced Hysteresis Modeling
ANSYS Maxwell incorporates the most advanced material modeling in the low-frequency simulation space. Vector hysteresis modeling can analyze hard materials with large coercivity, suitable to analyze magnetization and demagnetization of permanent magnets. This capability is critical as it provides better accuracy in field computation in devices (machines, transformers).
Multiphysics Coupling via ANSYS Workbench
The nonlinear nature of materials used in magnetic devices, such as motors and transformers, has a strong dependence on temperature. Likewise, the losses in these components require the ability to include temperature effects. ANSYS 14.5 improves the two-way links between ANSYS Maxwell and ANSYS Fluent, provides a one-way link to ANSYS IcePak from Maxwell, and utilizes a Workbench component iterator to automate the number of iterations being performed on a two-way Workbench coupled model.
The 14.5 release provides the use of nonmodel sheet objects for field processing, making it fast and convenient to select objects and surfaces for field processing. Additional enhancements include field overlay markers and faster response time when modeling large electric machines or devices.
ANSYS Simplorer couples with the ANSYS HFSS solver, which can be used to compute electromagnetic radiation. Simplorer links to HFSS piece-wise linear (PWL) sources and supports integration with the network data explorer (NDE) to examine coupling effects.
Mixed-Signal Description Languages
To achieve systems simulations, ANSYS Simplorer includes a VHDL-AMS compiler with enhanced language coverage, bringing higher capacity to solve larger problems. It provides full support of the AK30 libraries, a popular benchmark for the automotive industry. Simplorer also includes a digital solver.
Device Characterization Tools
For advanced power semiconductor modeling requirements, ANSYS Simplorer incorporates a characterization tool for power MOSFET devices. This tool enables you to input all numbers and curves from datasheets and create a very accurate dynamic MOSFET model. Improvements have been made for the IGBT characterization tool.