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CAD/CAE/CFD/CAO/HPC новости 2 Декабря 2004 года
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Компания Ansys, Inc. анонсировала выход ANSYS 9.0 и ANSYS Workbench 9.0

 ANSYS, Inc., a global innovator of simulation software and technologies designed to optimize product development processes, has announced ANSYS 9.0, the first software release featuring electromagnetic, computational fluid dynamics (CFD) and mesh creation technologies integrated within the ANSYS® Workbench(tm) product development environment, making simulation more powerful and more accessible to a broader range of users.

"At Eaton, for over the past 20 years we have relied on the ANSYS software to qualify our products," said Thomas Chimner, chief engineer at Eaton Corporation. "Now, ANSYS has taken this capability to the next level by incorporating this powerful tool into the Workbench and provided our development team the tools to succeed in today's competitive market."

A major upgrade for the CAE industry's leading simulation software, ANSYS 9.0 is an important stride toward the continued evolution of Workbench as a more productive and collaborative engineering tool for simulation-driven, integrated product development. Workbench's easy-to-use modern architecture allows companies to be more productive by eliminating manual file transfer, result translation and reanalysis, saving time and money.

"We recognize the leadership of ANSYS in the engineering marketplace, and we are delighted that we were able to easily integrate ANSYS Workbench into our structural solutions in such a short period of time," said Gary Wyatt, International Sales and Marketing director at RoboBAT and ISS. "Now, ANSYS has taken this powerful tool to a new level by integrating CFD with all the physics solvers and CAE tools available within the Workbench. It is clear that both RoboBAT/ISS and ANSYS are focused on offering true workflow and integrated solutions for the engineering designer."

Ideal for companies utilizing simulation in their product development processes, ANSYS 9.0 extends core features and provides powerful robust design capabilities as well as impressive developments in the areas of mechanics, computational fluid dynamics, high-frequency electromagnetics and multiphysics.

In addition, new breakthrough technology for large-scale parallel computing, allows users to analyze complete systems without unnecessary approximations to their models.

"ANSYS 9.0 is a significant leap toward our long-term strategic vision. It is a validation of where we are and where we are going," said Jim Cashman, president & CEO at ANSYS. "It is our commitment to respond to customer demands and to make better quality solutions that are reliable throughout the product lifecycle."

http://www.cfdreview.com

 

ANSYS 9.0 Release New Features and Enhancements

Integrated Product Development Environment
ANSYS 9.0 offers new advances in combining core technology within the ANSYS Workbench interface, providing enhanced user productivity and integrated solutions within the related products. Workbench 9.0 is the first ANSYS software release featuring electromagnetics capability and industry leading CFD and mesh creation technologies of CFX and ICEM CFD with the structural analysis capability. Additionally, Workbench 9.0 offers enhanced mechanics and materials data, demonstrating ANSYS, Inc.’s commitment to bring integrated, modular and extensible engineering simulation solutions to the marketplace.

CFX-5.7, the latest and most powerful release of ANSYS CFX software, is supported in the Workbench interface, with all stages of a full CFD simulation conveniently existing within a single environment. Users can perform their CAD access, geometry handling, meshing, physics setup, solution control and post-processing with state-of-the-art tools, without moving between completely separate products or having to handle files manually. This represents the first step toward closer integration of CFD with all the physics solvers and CAE tools available in the Workbench solution. The power and flexibility of the ICEM CFD meshing tools are also available in the Workbench, ensuring that difficult to mesh CAD or very large assemblies, as well as high quality multi-block hex meshing can be handled easily.

In addition, the Workbench advanced meshing tools provide input/output support for a large number of solver file formats. The ease-of-use and overall process of meshing for CFD and structural users have been improved. Structural users will gain advantage from improved pre- and post-processing, as well as data interoperability for legacy models. CFD users will benefit from the improved hybrid modeling composed of pure hex, hex dominant, tetra/prism and/or a combination with tools to locally remesh volume regions to ensure high quality. This, too, represents the next stage of advanced meshing tools within the Workbench interface.

Offering the industry’s easiest to use electromagnetics simulation, Workbench 9.0 features magnetostatic modeling and analysis that address the simulation needs of the rotating electric machine, solenoid, magnet design and actuator markets. Users can seamlessly set up electric motor/actuator simulations to compute results as a function of current, stroke or rotor angle. Unprecedented CAD associativity is provided, together with a Simulation Wizard and ease-of-use tools for meshing air enclosures and setting up complex motor coil windings. Solid and stranded (wound) conductors are supported. In addition to excellent results visualization through contour and vector plots of field quantities, automated computations of force, torque, inductance and coil flux linkage also are provided.

Extending the capabilities of advanced nonlinear analysis within Simulation, ANSYS 9.0 offers major enhancements in areas of multiple loads step analysis for both 3-D and 2-D analysis. Through an intuitive and easy- to-use user interface, users now can apply loads over multiple load steps and solve, and post- process results over these multiple load steps. Further enhancements in the beam stress tool, customizable command objects through the ANSYS Parametric Design Language (APDL), and enhancements in contact modeling and setup offer users tools targeted toward increased productivity and ease-of-use during simulation.

The ANSYS Workbench 9.0 interface offers a significant enhancement in creating and maintaining material database for analysis requirements. The Engineering Data Folder offers a repository of all data that can be accessed by all Workbench modules with capabilities to handle multiple material libraries, structural and thermal properties needed for simulation, electromagnetic properties including B-H curves, convection data and parameterized tabular properties for the DesignXplorer product.

Additionally, at release 9.0, ANSYS has introduced significant enhancements to the Workbench Software Development Kit, allowing customers and partners to easily integrate their applications with ANSYS technology. Using the same tools, users also can create automated processes for performing simulation studies that are customized to the types of products and analyses of interest.

ANSYS 9.0 offers significant new advances in integrating core technology within its ANSYS Workbench environment. Developments within the Workbench environment, offers users enhanced productivity and integrated solutions within its related products suites. Enhancements in parametric modeling, CAD data manipulation, engineering data handling and design for six sigma offers users advanced tools in areas of low frequency electromagnetics, nonlinear analysis and robust design.

  • Nonlinear Mechanics
    Advanced nonlinear analysis involves multiple load steps with complex load patterns required for accurate simulation of real physics. In addition these analyses require advanced pre and post processing for problem setup and review of load step results. Extending the capabilities of advanced nonlinear analysis within Design Simulation, ANSYS 9.0 offers major enhancements in areas of multiple loads step analysis for both 3-D and 2-D analysis. Through an intuitive and easy to use user interface, users can now apply loads over multiple load steps and solve and post process results over these multiple load steps. Further enhancements in beam stress tool, customizable command objects through APDL and enhancements in contact modeling and setup offer user’s tools targeted towards increased productivity and ease of use during simulation.

  • Engineering Data Application
    One of the most important steps in analysis is in defining proper material properties for parts and assemblies to represent real world conditions. Maintaining these material model data especially across a wide range of material definition from linear to nonlinear metal properties to hyperelastic material constants, magnetic material data (B-H curve) can become a major task as part of the analysis. Further these properties could be temperature dependent and could require extraction from experimental inputs.

    ANSYS Workbench 9.0 offers a significant enhancement in creating and maintaining this material database for analysis requirements. The Engineering Data Folder offers a repository of all data previously accessed via “Engineering Data” folder of Design Simulation. It offers a place for engineering data that can be accessed by all Workbench modules with capabilities to handle multiple material libraries, structural / thermal properties needed for simulation, electromagnetic properties including B-H curves convection data and parameterized tabular properties for DesignXplorer.

  • DesignModeler
    DesignModeler technology allows users a bi-directional CAD interface to major CAD packages and offers a convenient tool for parametric modeling, CAD data manipulation and defeaturing within the Workbench environment. New enhancements within Design Modeler, allows users to define winding bodies to represent windings for electromagnetic simulation. Winding Bodies may be promoted manually, or created via the Winding feature. Additional enhancements include the ability to create 3-D curve feature, planar bodies for 2-D analysis and the pattern feature allows users to create linear, circular, and rectangular patterns of face sets and bodies.

  • Robust Design
    Building upon our Design For Six Sigma offering at 8.1, Robust Design at 9.0 allows you to “design-in” robustness directly into your product, thereby minimizing QA rejections and in field failure costs. Robust Design consciously considers the uncertainties or noise factors (material variations, environmental variations during the product's usage, manufacturing variations, and component deterioration) that a product is exposed to. Robust Design allows you to quantify the failure rate.

    Any design problem has two broad classes of input parameters; uncontrollable parameters and controllable parameters. The uncertainties or noise factors come from the uncontrollable parameters, which produce uncertainties in the output parameters such as deflection, stress or fatigue life. Robust Design addresses uncertainties in the output parameters by addressing both controllable and uncontrollable input parameters. Robust Design results in a product that is insensitive to the unavoidable uncertainties. Additionally, Robust Design optimizes the product such that reliability is maximized or the failure probability is minimized, thereby providing you with the best product and lowest overall product life cycle costs due to decreased QA rejections and in field failure costs.

Core Technology Enhancements

Core technology forms the basis of all solver technology tools within ANSYS products. ANSYS 9.0 offers significant enhancements in several areas including modeling and analysis of spot welds, modeling of thick shell structures, nonlinear analysis of hyperelastic structures with rezoning and coupled physics analysis including thermoelectric coupling within ANSYS.

  • Multiphysics
    Direct coupled field element technology has been enhanced to include thermoelectric effects critical to the electronics cooling industry. The coupled field elements now additionally support: Seebeck, Peltier, Thomson & transient electrical effects (capacitive “damping”). These thermoelectric effects allow ANSYS, Inc. to addresses new thermoelectric applications where temperature stabilization, temperature cycling, compact or pinpoint cooling are required. Some examples are digital thermometers, microprocessor heat sinks or the new generation of semi-portable refrigeration products that are powered by cars power outlet.

  • High-Frequency Electromagnetics
    High frequency (full wave) electromagnetics capability has been extended to address more simulation needs in new HF market areas. A port is now available to launch a plane wave for a scattering analysis of a periodic structure. Such a structure is commonly referred to as a Frequency Selective Surface (FSS) and is most commonly used in applications such as the viewing window of microwave ovens. Lumped “RLC” circuit elements can now be included in the HF analysis. This new capability can be used to greatly simplify a HF analysis in a similar manner to our LF Emag circuit elements. New post processing options allow the display of parameters on Smith charts and Specific Absorption Rate (SAR) for lossy materials. SAR  is an important capability required primarily for biomedical studies interested in the effect of HF energy on living tissue.

  • Structural and Thermal Analysis
    In automotive and/or aerospace industries, many applications require modeling of spot welds between two or more thin parts. The strength and fatigue properties of thin sheet components are considerably influenced by spot welds. The traditional methods of modeling spot welds require matching meshes of different parts at spot weld connection points and they do not consider the effects of spot weld radius. Mesh independent spot weld modeling in ANSYS allows parts to be meshed independently and to be located anywhere between multiple parts that are to be connected in a finite element model regardless of the mesh. The location of the spot weld can be independent of the location of the nodes on the surface to be welded.

    Analysis applications which involve assembly of thick and thin structures, like auto body panels, electronic components etc, usually require special nonlinear contact treatment for connecting these shell and solid elements. Analysis of such structures raises various issues such as handling variable thickness parts and accuracy while modeling thin structures with solid elements. The new SolidShell element in ANSYS 9.0 allows users to model these structures with relative ease. Since these elements are formulated like solid elements it makes it easier to model assemblies having thick and thin parts with variable thickness.

    Rubber materials are typically flexible in nature. These materials are modeled with ANSYS using hyperelastic material models. Large deformation analysis of these hyperelastic structures typically involves severe finite element mesh distortion which makes both the accuracy and convergence of further solution impossible. Rezoning enhancements with ANSYS 9.0 release offer a methodology to remesh the deformed domain and continue solution towards convergence. Future enhancements will extent this generalized capability to address other application areas such as metal forming etc.

    Thermal radiation analysis requires calculation of radiation view factor which for large models can be computationally intensive, Radiation enhancements in ANSYS 9.0 offer a methodology to decimate the underlying thermal mesh into a much coarser radiation mesh for view factor calculation and analysis. In addition, the ability to handle planar and cyclic symmetry models for thermal radiation calculation severely reduces the solution time for radiation calculation for thermal analysis.

    In addition to the above enhancements, there have been significant enhancements in pre and post processing features providing higher flexibility and usability within ANSYS.

Distributed ANSYS (DANSYS)

Totally new at 9.0 is the addition of Distributed ANSYS (DANSYS) to the Parallel Performance for ANSYS module. In DANSYS the entire solution runs in parallel! This includes generating the stiffness matrix, solving the equations, and performing the results calculations. As a result, DANSYS is very scalable for linear and nonlinear analyses, both for wall clock time as well as equation solution only time.

DANSYS’ distributed memory architecture runs a solution over multiple processors on single or multiple machines. It decomposes large problems into smaller domains, transfers the domains to each processor, solves each domain, and creates a complete solution to the model. Because the solutions are running in parallel, the whole model solution takes much less time to solve. The memory required is also distributed over multiple systems so the peak memory required on any one machine is greatly reduced making solutions of large models possible on very affordable machines with limited memory.

DANSYS includes two sparse solvers, a PCG solver and a JCG solver. With its vast array of solvers, DANSYS can tackle everything from linear structural analyses to nonlinear structural analyses to full transient analyses for single field structural and single field thermal analysis. DANSYS, part of Parallel Performance for ANSYS, bringing you the fastest possible turnaround time by using parallel computing!

http://www.ansys.com