K9
Designer Orientated Simulation

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17:35
conference time (CEST, Berlin)
Next Step in Simulation Driven Design at Argo Hytos and Oerlikon
26/10/2021 17:35 conference time (CEST, Berlin)
Room: K
K. Kruse, L. Ziegler (CADFEM GmbH, DEU)
K. Kruse, L. Ziegler (CADFEM GmbH, DEU)
In addition to the established Ansys experts, design engineers should ideally also benefit from the advantages of simulation in order to contribute to the overall business goals. Ansys Discovery is not only a logical extension of the Ansys expert world, but embodies essential features to not only empower but also inspire design engineers. The presentation will provide insights into what Argo Hytos and Oerlikon aim to achieve and how Ansys Discovery is used in daily operations. Also of interest are the benefits they see in Discovery and what factors are important to ensure successful deployment. Based on a CAD model, live simulation provides feedback on the physical behavior of a structure in seconds. Be it on its mechanical behavior, temperature distribution, vibrations or fluid mechanics. Live simulation does not require a specialist, but can and should be used by designers and development engineers directly during the conception phase. This results in many opportunities to improve products. Uncertainties are better identified from the outset. The number of prototypes and test runs is drastically reduced. In addition, computational experts are relieved as standard tasks are performed early in the development process. The simple workflow within Discovery also makes it possible to perform high-fidelity analyses that can take into account additional physical effects, such as nonlinear contacts or geometrically large deformations. ====== Neben den etablierten Ansys Experten sollen im Idealfall auch Konstrukteure von den Vorteilen der Simulation profitieren um insgesamt zu den unternehmerischen Ziele beizutragen. Ansys Discovery ist nicht nur eine logische Erweiterung der Ansys Expertenwelt, sondern verkörpert essentielle Eigenschaften um Konstrukteure nicht nur zu befähigen, sondern auch zu begeistern. Die Präsentation gibt Einblicke, welche Ziele Argo Hytos und Oerlikon mit dem Einsatz früher Simulation verfolgen und wie Discovery im täglichen Einsatz Anwendung findet. Darüber hinaus wird beleuchtet, welche Vorteile Discovery bietet und welche Faktoren wichtig sind, um den erfolgreichen Einsatz sicherzustellen. Basierend auf einem CAD-Modell liefert die Live-Simulation in Sekunden eine Rückmeldung über das physikalische Verhalten einer Konstruktion. Sei es zu ihrem mechanischen Verhalten (Steifigkeit, Festigkeit), der Temperaturverteilung, den Schwingungen oder der Strömungsmechanik (Druckverlust, Geschwindigkeiten). Die Live-Simulation erfordert keinen Spezialisten, sondern kann und soll von Konstrukteuren und Entwicklungsingenieuren direkt während der Konzeptionsphase eingesetzt werden. So ergeben sich viele Chancen, Produkte zu verbessern. Unsicherheiten werden von vornherein besser identifiziert. Die Anzahl an Prototypen und an Testdurchläufen wird drastisch reduziert. Darüber hinaus werden Berechnungsexperten entlastet, da Standard Aufgaben bereits im frühen Entwicklungsprozess durchgeführt werden. Durch den einfachen Workflow innerhalb von Discovery ist es zudem möglich, eine hochgenaue Analyse durchzuführen, die zusätzliche physikalische Effekte berücksichtigen kann, wie z.B. nichtlineare Kontakte oder geometrisch große Verformungen.
Simulation, product development, Discovery, Ansys, Argo Hytos, Oerlikon
17:55
conference time (CEST, Berlin)
Use of Templatized and Democratized Simulation to Accelerate Design
26/10/2021 17:55 conference time (CEST, Berlin)
Room: K
G. Westwater (Fisher Controls International LLC, USA); E. Xiao (Emerson Automation Solutions, CHN)
G. Westwater (Fisher Controls International LLC, USA); E. Xiao (Emerson Automation Solutions, CHN)
Democratization, Templatization, and Optimization are currently topics of high interest in the simulation community. Democratization is the effort to allow those who are not specialists in simulation to use simulation tools in their daily work, moving the simulation closer to the consumer. Templatization is a common tool of democratization, where a simulation specialist develops a simulation template for others to use. The template addresses key simulation decisions, allowing the end user to populate the template with information specific to their project. This presentation will discuss how a templatized, democratized process was implemented on a real world project. Simplifying assumptions were evaluated for impact on accuracy. The reduced complexity model required fewer decisions and inputs from the end user and allowed rapid solutions on standard workstations. Existing automation tools were used to assist the end user with setup focusing their effort on scoping loads and constraints to the appropriate geometry. A limited training was developed to provide adequate background to the users and help them understand the limitations inherent to the templatized model and focus on the post processing required for their application. At the project level, the simulation plan was modified to allow for the democratized analysis while also providing higher fidelity analysis by simulation specialists at key points in the process. The outcomes and business impact of the effort were greater than expected. The design team estimated that the iterative simulation portion of the project moved three to four times faster than prior projects, providing significant benefits to project schedule. Moving the simulation work closer to the designers and engineers reduced the delay associated with handoffs and waiting in queue for priority. The faster pace of iteration also led to increased optimization and improved understanding of their design space. There were a few misses in the process which are discussed and their causes identified. Beyond the financial impact, the effort has led to more trust and is contributing to the institutional discipline necessary to ensure that simulation is properly applied by democratized users. While the approach covered here was launched as an experiment and is still being refined, the successes realized thus far are driving expansion of the approach to other projects and design teams.
Democratization, Optimization, Templatization,
18:15
conference time (CEST, Berlin)
A Step Towards Integrated Engineering: Fluid Topology Optimization With Embedded Reconstruction for CAD Designers
26/10/2021 18:15 conference time (CEST, Berlin)
Room: K
J. Iseler (Dassault Systemes Deutschland GmbH, DEU); P. Pagliughi (Dassault Systemes, FRA)
J. Iseler (Dassault Systemes Deutschland GmbH, DEU); P. Pagliughi (Dassault Systemes, FRA)
Evolution of numerical solutions has changed the product analysis across industries significantly. It has successfully made it possible, to analyse and optimize the products in a faster and cheaper way. CFD simulation is a numerical solution that predict fluid flow behaviour in or around an object. It exists now for several decades and is widely used across various industries mainly by the product analysts or simulations engineers, primarily to improve phenomenon, like flow-separation, turbulent jet behaviour, pressure drop, aeroacoustics etc. In the recent years, a revolutionary usage of this numerical approach has come to existence, i.e., to provide the potential of CFD further upstream in the product development processes. The idea is to make CFD technology available to the Design Engineers. This CFD integrated CAD approach facilitates designers to move back and forth between designs and corresponding analysis, to make fast, sustainable and cost efficient choices and move the design to its optimum self. Instead of creating the initial design manually and fine-tune it later, the designer could alternatively start with a topology optimization approach which delivers an innovative design concepts tailored to the local flow physics. In order to enable the CAD designer to go smoothly through the CFD and optimization setup, a wizard-based approach should be chosen. Moreover, the applied physic should mostly be predefined and the mesh creation happens ideally without user interaction. Within this paper, a topology optimization tool will be presented which fulfils the above-mentioned requirements. The potential of the tool will be demonstrated by going through an optimization task for a hydraulic manifold block. Hydraulic manifolds are applied to regulate fluid flow between pumps and actuators and other components. They are often exposed to high fluid pressures resulting in a highly loaded structure. Therefore, a conservative concept is usually taken leading to a significant weight of the manifold part. The goal of this task is to provide a lighter design concept with improved flow behaviour. In a first step, a flow topology optimization is done, which provides an improved ductwork at low pressure drop and without recirculation. After that, a structure topology optimization of the surrounding solid is applied within the same working environment to minimize the mass for given constraints. For this step, the fluid pressure distribution along the optimized duct walls is taken as load condition. The outcome of this twostep procedure is a design with a significant reduction in weight and pressure drop.
CFD, optimization, topology optimization, CAD, reconstruction, fluid dynamics
18:35
conference time (CEST, Berlin)
Digital Exploration Made Possible By High Performance Computing on GPUs
26/10/2021 18:35 conference time (CEST, Berlin)
Room: K
D. Choudhury, A. Main, R. Borker, J. Maruszewski (Ansys Inc., USA)
D. Choudhury, A. Main, R. Borker, J. Maruszewski (Ansys Inc., USA)
Digital transformation is impacting every industry - automotive, agriculture, logistics, healthcare, and manufacturing, to name a few. Concurrently, digital technologies are increasingly being used in high schools, colleges, and universities for in-person and remote learning. While, in the past, engineering education coupled classroom lectures with experiments in physical laboratories, an increasing number of courses utilize engineering simulation software to augment teaching. Laboratory experiments, design projects, and physical prototyping are being complemented by simulation and software-based experiential learning. While traditional engineering simulation tools such as the leading CFD, CSM, and CEM packages are extremely accurate and capable of detailed modeling, they are not as easy to use, particularly for undergraduate or high school students. Valuable time is taken away from instruction to having to learn the simulation tool. Furthermore, the excessive time that is taken in connecting with CAD for geometry acquisition/editing and the computation time of the simulation process itself dilutes the value of the tool for the instruction process. In this presentation, we will describe the underlying technology and methods that have been used to create a product well suited for introducing designers and undergraduate students to the art and practice of simulation, allowing them to create concepts leading to designs, as well as perform design space exploration while learning the underlying physics and simulation principles. The main breakthroughs have been in combining, at a deep level, direct geometry modeling methods, voxel-based discretization, a high degree of usability, and the massively parallel numerical methods harnessing the high-performance computing capacity of GPUs for both computation and visualization. While the simulation tools in the past were generally restricted to run on engineering workstations, on powerful personal computers, or on university servers, with the new combined technologies, it is possible to get near-instantaneous results utilizing the capabilities of GPUs on the local machine or on the Cloud. These capabilities are supported by a digital learning system (online courses with simulation tools provided on the cloud) allowing students around the world to be trained in the most complex engineering disciplines. In this talk, we will provide details of the underlying technologies and methods that are suitable for meeting the evolving needs of the many millions of engineering and STEM students by providing educators and students with high-quality education assets and simulation tools accessible to everyone.
GPU Computing, High Performance Computing, Digital Exploration, Pervasive Simulation
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