DOCSLIB.ORG

Systems Engineering Using Modelcenter and Simulationx

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Systems Engineering Using Modelcenter and Simulationx ITI-Symposium 2014 Model based Systems Engineering using SimulationX and ModelCenter Gerhard Pregitzer1, Alexander Blumör1, Dr. Sven Kleiner2, Dr. Marcus Krastel2, Michael Neubert2 1 KARL MAYER Textilmaschinenfabrik GmbH, Brühlstraße 2, 63179 Obertshausen www.karlmayer.com, [email protected] 2 :em engineering methods AG, Rheinstr. 97, 64295 Darmstadt, www.em.ag, [email protected] Summary: The introduction of Systems Engineering (SE) for the mechatronic product development is important even in classic engineering companies and shall be discussed. Therefore, companies are asking the question, what added value is offered by the integration of SE with respect to their conventional and established development process as well as what benefits will arise with respect to a shortening of the development time, cost savings such as an increase in productivity, quality and innovation. Rightly so, the question must also be asked, how high the investments in Systems Engineering processes, methods and IT- Tools are to be expected for a company. In the following contribution the challenges and benefits of SE will be presented. The deliberate introduction of “Model Based Systems Engineering” (MBSE) can aid in the conversion from a document-centered approach to a model-based development methodology in order to exploit the desired potential benefits. This paper presents the experience of the introduction and adaptation of MBSE based on the example of machine development. Zusammenfassung: Die Einführung von Systems Engineering (SE) für die mechatronische Produktentwicklung gewinnt auch in den klassischen Maschinen- bauunternehmen an Bedeutung und wird diskutiert. Unternehmen stellen sich dabei die Frage, was Ihnen der Einsatz von SE bezogen auf ihre konventionellen und etablierten Entwicklungsprozesse an Mehrwert bietet und welcher Nutzen hinsichtlich Verkürzung der Entwicklungszeit, Kosteneinsparung sowie Steigerung von Produktivität, Qualität und Innovation daraus entsteht. Zu Recht muss auch die Frage gestellt werden, wie sich die Investitionen in Systems Engineering Prozesse, Methoden und IT-Werkzeuge für ein Unternehmen rechnen. Im vorliegenden Beitrag werden dazu Herausforderungen und Nutzen von SE dargestellt. Die gezielte Einführung von „Model Based Systems Engineering“ (MBSE) kann dabei helfen von der dokumentenzentrierten Vorgehensweise zu einer modellbasierten Entwicklungsmethodik zu gelangen, um die gewünschten Nutzenpotentiale auszuschöpfen. Der vorliegende Beitrag zeigt die Erfahrung aus der Einführung und Erstanwendung von MBSE am Beispiel der Maschinenentwicklung auf. 1 TI-Symposium 2014 1 Quick introduction to Systems Engineering The Gesellschaft für Systems Engineering (GfSE e.V. which is the german chapter of INCOSE, International Council of Systems Engineering) describes Systems Engineering (SE) as a comprehensive engineering activity, which is necessary for the development of complex products [GfSE14]. The tasks associated with SE are varied and start with requirements engineering and system analysis and range to system development to safeguarding and testing. Due to the variety of disciplines involved in today’s innovative product development processes, such as mechanics, electronics, and software, the mastery of SE is increasingly becoming a real competitive advantage for companies. With the requirements for solutions in the context of Industrie 4.0 and the development of so-called cyber physical products presents new challenges. A competitive development of these products and systems without the introduction of a SE- Methodology is not feasible [MCP14]. A large number of companies currently fear a high methodological, organizational and financial expense in the introduction of SE: there is a lack in both the procedural and organizational basis as well as in experience and competencies for a successful introduction of SE in practice. The idea of an overall concept and presentation of the benefits of the introduction of SE in companies are critical in convincing the decision- makers to carry out such measures. 2 Benefits of Systems Engineering Companies face a legitimate question when considering and implementing SE, what SE offers with regard to value-added based on their conventional and established development processes. Therefore, the question must be asked whether and when the investment in SE methods and IT tools will pay off for a company. In the work „Systems Engineering Return on Investment“ by Eric C. Honour from the year 2013 a wide-ranging study of the return on investment (ROI) was calculated for Systems Engineering [HON13]. Thereby 51 development programs from 16 companies in the aerospace and the defense industry were analyzed. A key finding was that the optimal cost for SE lies at around 14.4% of the total development costs for an average development program (approximately 14 million EUR development budget). For smaller or larger programs and depending on other characteristics (depth of system integration, size of the system, Technological risk, etc.) the value may vary between 8% and 19%. For an average sized program the calculated SE-ROI was 3.5:1. 2 ITI-Symposium 2014 Figure 1: Benefits linked to the use of systems engineering components Figure 1 shows the points at which the benefit of SE can be generated. Through SE the transition from today’s numerous trial and prototype-driven functional verification to virtual system verification is made possible (1). Additionally both the development time (3) as well as the development costs (2) can be reduced. The benefits of SE are therefore combination of several effects [KK14]: SE helps to master the complexity of a system: The networking of the systems will grow massively through current and future innovations and the control of these cross-domain dependencies and relationships can only be mastered with SE methods. The transparency and traceability of dependencies are an integral part of increasing the efficiency of the development process. Through the use of SE methods interdisciplinary change processes can be introduced and implemented. SE enables interdisciplinary quality management and validation: The conformity of the system properties to the requirements (e.g. customer requirements, standards, certifications or country regulations) with respect to individual components and the overall system must be ensured during the development process. This is where the SE method comes into play, as it provides an assessment of the degree of fulfillment of requirements based on the total system throughout the development process. SE reduces Hardware and Prototypes: In particular, in the established experimental and calculation disciplines the number of real hardware tests has been significantly reduced by use of simulation, thus saving development time and cost. This development experiences your continuation in the increasing virtualization of validation - that is, in a 3 TI-Symposium 2014 transition from hardware- (HiL) via software- (SiL) to model-in-the-Loop (MiL) tests. To the same extent, through SE multidisciplinary system behavior can be integrated in early stages of development by networking behavior simulations from different disciplines. The presence of appropriate tool interface allows the re-use of behavior models for virtual testing in all Model granularities and thus in all phases of the development process. Thus, the number of hardware prototypes will be reduced by the early virtual validation. SE enables cooperative development processes: Cooperation with suppliers and development partners as well as OEM / OEM cooperation is in the design sector and in particular the exchange of CAD data has long been standard practice. With SE-methods the integration of suppliers for requirements definition, system design and optimization solution can also be made possible in the early stages of product development. This is supported by the increasing standardization of interfaces for tool coupling. An example of this is the Functional Mock-up Interface reference, a tool-independent standard for the exchange functional behavior models. [FMI14]. The overarching goal of SE is to increase the efficiency in the development of mechatronic systems by providing model-based methods and formulate the continuous networking of heterogeneous development tools. 3 Challenges in Systems Engineering The development process is characterized by constant decisions between different concepts and solution alternatives in order to achieve the best solution for the product. As a rule, there is a trade-off between the number of possible solutions and the amount of time available for the project development in order to evaluate all solution alternatives and make decisions early. An approach for the systematic development of solution concepts, system architectures and components based on the model-based systems engineering (MBSE), for example, provides the so-called FAS method [FAS14]. The method "Functional Architecture for Systems" (FAS) is understood as a communication tool and can be used to derive architecture decisions. The FAS method is independent of modeling languages and modeling tools. Modeling tools based on the SysML language support the model-based analysis and synthesis of systems from the perspective of the system engineer [Wei08]. At the same time, among other things requirement, functional and architectural models are developed, which are supplemented by the first parameter and behavior models in the design phase to the system level. Through which the so-called
Load more

Recommended publications
  • ESI's Simulationx
    by ESI‘s SimulationX Courses and Contents SimulationX is a registered trademark of ESI ITI GmbH Dresden. © ESI ITI GmbH, Dresden, Germany, 2019. All rights reserved. Doc. Vers. 08/2019 Preface Dear Sir or Madam, with the continuous development of SimulationX we provide you with the necessary resources for a targeted and sustain- able work in the field of system simulation. You will learn the efficient use of the software and its innovations in group and individual training courses at ESI or directly at your site. The highly practical nature of our courses and the professional Your personal contact: expertise of our tutors guarantee a quick and successful learn- ing process. We look forward to passing on our knowledge and would be happy to discuss new solutions with you. Antje Richter T + 49 (0) 351 260 50 - 120 With best regards on behalf of the ESI team, F + 49 (0) 351 260 50 - 155 [email protected] Antje Richter, Content 1 ESI ITI Academy 1.1 Introduction 07 1.2 Course Overview 08 1.3 Conditions of Participation 09 1.4 Registration 10 2 Introduction to SimulationX 2.1 Fundamentals 11 2.2 Advanced Modeling 12 2.3 Methods for Calculation and Analyses 13 3 Physical Domains 3.1 Mechanics (1D) 14 3.2 Planar Mechanics 15 3.3 Multi-Body Systems 16 3.4 Hydraulics 17 3.5 Thermal 18 3.6 Pneumatics 19 3.7 Acoustics (1D) 20 3.8 Electronics, Electromagnetics, Electromechanics 21 3.9 Electrical Power & Communications Analysis (1D) 22 3.10 Control Engineering 23 Content 4 Applications 4.1 Drive Systems 24 4.1 Drive Systems 25 4.2 Hybrid
    [Show full text]
  • Simulationx를 이용한 기계, 유체, 전기 통합 시스템 모델링 및 해석 Simulationx, Multi-Domain Simulation and Modeling Tool for the Design, Analysis, and Optimization of Complex Systems
    기술해설 SimulationX를 이용한 기계, 유체, 전기 통합 시스템 모델링 및 해석 SimulationX, Multi-domain Simulation and Modeling tool for the Design, Analysis, and Optimization of Complex systems 윤영환, 장주섭 Y. H. Yoon and J. S. Jang 1. 서 론 SimulationX의 사용상 장점은 다음과 같다. 1) 각기 다른 분야의 엔지니어들이 각자의 방식대 컴퓨터의 성능 발달로 인하여 이것을 활용한 시 로 부품이나 시스템을 모델링 할 수 있고, 이를 뮬레이션의 활용도가 높아지고 있고, 그 결과 복잡 서로 공유함으로써 복합적인 시스템 전체의 해 한 시스템을 실제 시스템처럼 모사가 가능하다. 이 석을 가능하게 하여 Multi-Domain Simulation 러한 CAE(Computer Aided Engineering) 기술 활 S/W라고 한다. 용은 비용 절감 및 개발 기간의 단축이라는 점에서 2) 상호 작용 및 피드백을 포함하는 다양한 도메 매우 중요하며, 현재 많은 제품 개발에 해석 기술이 인 부품들의 상호 작용을 모델링 할 수 있다. 활용되고 있다.1-4) 3) 시스템 개발에 있어서 공통적인 모델링 및 해 SimulationX는 독일의 드레스덴(Dresden)에 본사 석 환경을 이용함으로써 모든 관계자들 간 상 를 두고 있는 ITI GmbH에서 개발한 Multi-Domain 호 이해의 기반을 다질 수 있다. 시뮬레이션 프로그램으로서, 어떤 시스템을 구성하 4) 시제품(prototype) 제작 및 테스트 기간을 단축 고 있는 부품들의 상호 작용을 해석하고 평가할 수 하고 개발 비용을 절감할 수 있다. 있는 대표적인 소프트웨어(Software, S/W)이다. 5) 실제로 측정이 어렵거나 불가능한 모델에 대한 SimulationX를 가장 많이 시용하는 업체로는 유 관찰이 가능하여 시스템 전반에 대한 이해도를 럽의 BMW, Benz와 같은 자동차산업의 선두그룹으 높여 준다. 로 독일 자동차 회사들이 왜 세계 최고의 제품을 SimulationX의 조작 화면(GUI)은 그림 1과 같이 만드는지 알 수 있을 정도로 잘 만들어진 S/W이다. 왼쪽의 각종 물리적인 모델을 포함하고 있는 라이 SimulationX는 이미 라이브러리 화 되어있는 기 브러리, 오른쪽 위에 이러한 모델들을 배치하고 서 계(1D mechanics, 3D multi-body systems), 유압 로 연결하여 시스템 전체의 회로도를 작성하는 (Hydraulics), 공압(Pneumatics), 제어(Controls), 전 Model view외 각 모델의 물리적 특성 파라미터의 기, 전자(Electric, Electronics), 자장(Magnetics), 파 표시 및 조정, 해석과 관련된 사항을 조정하는 워트레인(Power transmission 1D, 3D), 전기 기계 Model explorer로 구성되어 있다.
    [Show full text]
  • S C H U L U N G S K a T a L O G 2 0
    SCHULUNGSKATALOG 2021 ENGINEERING SYSTEM INTERNATIONAL GMBH www.esi-group.com DIVE INTO THE WORLD OF ZERO TESTS, ZERO PROTOTYPES, ZERO DOWNTIME Seit der Gründung im Jahre 1973 hat ESI die Vision, reale und praxisnahe Konstruk- tionsprobleme verschiedener Industriezweige zu lösen. Diese Simulationslösungen, die auf der Materialphysik basieren, erzielten 1985 eine Weltpremiere: Zum ersten Mal wurde ein virtueller Crash-Test für Volkswagen durchgeführt, der den Weg für den umfangreichen Einsatz virtueller Lösungen in Entwicklungsprozessen eb- nete und neue Sicherheitsstandards etablierte. Ein neues Paradigma, die Outcome Economy Die zunehmende Komplexität stellt alle Branchen vor Herausforderungen. Die Herstel- ler stehen vor vielen neuen Aufgaben, um die Bedürfnisse der Kunden in Hinblick auf Qualität, Zuverlässigkeit, Sicherheit und pünktlicher Lieferung zu erfüllen. Die Outcome Economy erschwert die Erfüllung der wichtigen Leistungsindikatoren, da der Erfolg an der Leistung und nicht am Produkt selbst gemessen wird. Die Industrien müssen Wach- stum erzielen bei gleichzeitiger Aufrechterhaltung der Innovation. Daher entschei- den sie sich für eine digitale Transformation, die sie zu Initiativen ohne nachgewiesene Ergebnisse führen könnte. Courtesy of Volkswagen AG 2 Transformations-Reise Die von der ESI Group angebotenen Lösungen – das Ergebnis aus 45 Jahren Erfahrung – bringen die technologische Kompetenz mit, sich effizient und zuversichtlich zu entwickeln. Als Kernstück des ESI-Geschäftsmodells ermöglicht Virtual Proto- typing seinen globalen Kunden die Herstellung, Montage und das Verhalten ih- rer Produkte in verschiedenen Umgebungen zu validieren und so ihre Kos- ten und die Markteinführungszeit zu minimieren, ohne Abstriche bei Sicher- heit und Qualität zu machen. Um diese Ziele zu erreichen, begleitet ESI seine Kunden auf dem Weg hin zu Zero Tests, Zero Prototypes und Zero Downtime.
    [Show full text]
  • NI Tools for Automated Testing
    Agenda ▪ Introduction to NI ▪ Real-Time Test ▪ NI Solutions for Real-Time Test ▪ SW ▪ HW ▪ Standardizing the signal path ▪ SLSC ▪ ASAM XIL Mission Statement NI equips engineers and scientists with systems that accelerate productivity, innovation, and discovery. ni.com ONE-PLATFORM APPROACH NI SERVICES AND SUPPORT THIRD-PARTY SOFTWARE THIRD-PARTY HARDWARE WEB SERVICES NI PRODUCTIVE ARDUINO PYTHON DEVELOPMENT SOFTWARE ETHERNET C USB The MathWorks, Inc. MATLAB® GPIB .NET SERIAL VHDL NI MODULAR HARDWARE LXI/VXI AND MORE AND MORE MATLAB® is a registered trademark of The MathWorks, Inc. ONE PLATFORM APPROACH NI SERVICES AND SUPPORT Community THIRD PARTY HARDWARE Support 300,000+ Online Members 700+ Field Engineers 450+ User Groups NI PRODUCTIVE 700+ Support Engineers 9,000+ Code Examples DEVELOPMENT SOFTWARE 50+ Worldwide Offices NI ECOSYSTEM Academic Add-Ons 8,000+ Universities Worldwide 400+ Software Add-Ons 5M+ Tools Network Downloads NI ECOSYSTEM Partners NI MODULAR HARDWARE Open Connectivity 1,000+ Alliance Partners THIRD PARTY SOFTWARE 10,000+ Instrument and Device Drivers Industry-Leading Technology Partners 1,000+ Sensor and Motor Drivers Flexible Software Protects Your Investments NI TestStand NI VeriStand NI DIAdem NI InsightCM Enterprise NI Multisim LabWindows/CVI Measurement Studio Third Party Software Our Customers’ Success Electronics and Industrial Machinery Aerospace and Defense Semiconductor Academic and Research Electronics and Industrial Machinery Aerospace and Defense Semiconductor Academic and Research Transportation and Automotive Wireless Heavy Equipment Energy Transportation and Automotive Wireless Heavy Equipment Energy AEROSPACE AND DEFENSE “Through the use of advanced software architecture and NI hardware, G Systems was able to provide Lockheed Martin Aeronautics with a highly-configurable, expandable system to meet current and future requirements of the F-35 VSIF.” — Michael Fortenberry, G Systems, Inc.
    [Show full text]
  • Automatic Calibrations Generation for Powertrain Controllers Using Maplesim
    2018-01-1458 Automatic Calibrations Generation for Powertrain Controllers Using MapleSim Abstract development costs. Furthermore, MapleSim’s symbolic capabilities, including symbolic simplification and symbolic optimization of gen- Modern powertrains are highly complex systems whose development erated code, enable complex models to be simulated at speeds that al- requires careful tuning of hundreds of parameters, called calibrations. low real-time simulation for Hardware-In-the-Loop testing. The tool These calibrations determine essential vehicle attributes such as per- has been used in different industries, including safety critical indus- formance, dynamics, fuel consumption, emissions, noise, vibrations, tries [3]. Furthermore, the tool has been applied in powertrain model- harshness, etc. This paper presents a methodology for automatic gen- ing and analysis [4, 5, 6]. For example, [4] uses MapleSim/Maple for eration of calibrations for a powertrain-abstraction software module modeling and rapid prototyping of a powertrain. within the powertrain software of hybrid electric vehicles. This mod- ule hides the underlying powertrain architecture from the remaining In model-based development, the calibration process makes up a sig- powertrain software. The module encodes the powertrain’s torque- nificant portion of overall development efforts [7]. The calibration speed equations as calibrations. The methodology commences with process deals with tuning system parameters—calibrations—to meet modeling the powertrain in MapleSim, a multi-domain modeling and multiple requirements. Within the powertrain controls, calibrations simulation tool. Then, the underlying mathematical representation of typically reflect parameters (e.g., filters’ parameters, delays, thresh- the modeled powertrain is generated from the MapleSim model using olds, etc.) that are used for fine-tuning performance, fuel-efficiency, Maple, MapleSim’s symbolic engine.
    [Show full text]
  • Optimus Rev. 2018.1 Introduces New Modeling Methods Boosted by Machine Learning
    Optimus Rev. 2018.1 introduces new modeling methods boosted by Machine Learning. PRESS RELEASE Leuven (Belgium), November 5 - 2018 – Noesis Solutions, the developer of Optimus and id8, announces the release of Optimus Rev. 2018.1. This release introduces new modeling methods boosted by MaChine Learning, enabling engineering teams to Create aCCurate models for low and high-dimensional optimization problems faster. Many of the new updates that come with Optimus Rev. 2018.1 further enhance Design Space Exploration and Optimization Capabilities while increasing Compatibility with leading CAD/CAE solutions. This new release confirms Optimus as the industry’s preferred platform for Design Space Exploration and Engineering Optimization. Powerful modeling boosted by MaChine Learning. This new Optimus release introduces new modeling methods boosted by Machine Learning, enabling engineering teams to create accurate models for low and high-dimensional optimization problems even with a limited number of training data sets. The new Light Weight Neural Networks (LWNN), Random Forest Regression (RFR) and Relevance Vector Regression (RVR) algorithms assist the user in accurately modeling large data sets quickly. The new Best Model algorithm even assists non-expert users by automatically selecting the best-performing model for any given data set among the models available in Optimus. Enhanced Design Space Exploration and Optimization Capabilities In addition, Optimus Rev. 2018.1 brings several improvements to Optimus’ unique Adaptive DOE algorithm that learns from available data points and iteratively adds extra data samples in design space regions that matter most. This new Optimus release further extends the capabilities of NAVIRUN, the Noesis Advanced adviser, which now also supports discrete optimization problems.
    [Show full text]
  • Lecture #4: Simulation of Hybrid Systems
    Embedded Control Systems Lecture 4 – Spring 2018 Knut Åkesson Modelling of Physcial Systems Model knowledge is stored in books and human minds which computers cannot access “The change of motion is proportional to the motive force impressed “ – Newton Newtons second law of motion: F=m*a Slide from: Open Source Modelica Consortium, Copyright © Equation Based Modelling • Equations were used in the third millennium B.C. • Equality sign was introduced by Robert Recorde in 1557 Newton still wrote text (Principia, vol. 1, 1686) “The change of motion is proportional to the motive force impressed ” Programming languages usually do not allow equations! Slide from: Open Source Modelica Consortium, Copyright © Languages for Equation-based Modelling of Physcial Systems Two widely used tools/languages based on the same ideas Modelica + Open standard + Supported by many different vendors, including open source implementations + Many existing libraries + A plant model in Modelica can be imported into Simulink - Matlab is often used for the control design History: The Modelica design effort was initiated in September 1996 by Hilding Elmqvist from Lund, Sweden. Simscape + Easy integration in the Mathworks tool chain (Simulink/Stateflow/Simscape) - Closed implementation What is Modelica A language for modeling of complex cyber-physical systems • Robotics • Automotive • Aircrafts • Satellites • Power plants • Systems biology Slide from: Open Source Modelica Consortium, Copyright © What is Modelica A language for modeling of complex cyber-physical systems
    [Show full text]
  • ECU-TEST Makes Automation Easy Key Features at a Glance Interfaces
    PRODUCT DATA SHEET ECU-TEST makes automation easy With ECU-TEST you can intuitively create test cases for automotive software in every development phase and run them automatically – even without any prior knowledge of test automation and programming. We have designed the tool in such a way that the test quality is kept exceptionally high at all levels, although the effort it takes to use it is extremely low. Key features at a glance Bus description: • Supports a broad range of test tools and test environments (MiL/ • ARXML (Classic Platform) 4.1.1 to R20-11 SiL/PiL/HiL/vehicle) • ARXML (Adaptive Platform) to R20-11 • Uniform and effective automation of the entire test environment • DBC • Smooth collaboration through Diff and SCM integration (GIT, • FIBEX to 4.1.1 SVN) • FIBEX for Ethernet 4.1.2 • Automation of distributed test environments • FIBEX for Diagnostic Log and Trace (DLT): • Intuitive graphical user interface Analyse non-verbose Mode • Generic test-case description • LIN Description File (LDF) Integrated trace analysis module (see TRACE-CHECK ECU description: data sheet): • ASAP2 Database (A2L) • Easy analyis specification via • Executable and Linkable Format (ELF) with DWARF 2-5 • Triggered analyses • Intel HEX • Motorola S19 • Timing diagrams • Python interface • Support for all common recording formats Supported trace formats • High reusability of analyses Signal-based trace formate: • Clear presentation of results • AS3TRACE (TraceTronic) • Transition to the interactive SignalViewer • CSV • Plots enriched with result data
    [Show full text]
  • Adam D. Foltz SMT North American User Conference, October 10Th, 2019
    Adam D. Foltz SMT North American User Conference, October 10th, 2019 Updated: 10/21/19 Interests: Solid Mechanics, Torsional Vibration, Gear Dynamics, Gear Design, Engine Dynamics, Numerical Methods, Multibody-Dynamics, FEA, Optimization ▪ Title: Improvements on the Slice Method for External Spur and Helical Gear Loaded Tooth Contact Analysis ▪ Objective: Improve the slice method, used in the LTCA of external spur and helical gears, to bridge the gap between analytical and FE methods, and more accurately capture 3D effects. ▪ Focus: External spur and helical gears (shafts, bearings, and housings are neglected, or assumed infinitely stiff). Models that practical for use in industry. ▪ Collaboration: This work uses software developed by Divergent Solutions LLC, and will use SMT MASTA for verification purposes, along with other software. Validation with experimental data will not be performed, since manufacturing errors, misalignment, bearing stiffness, and housing stiffness are neglected in the models. ▪ What is LTCA? ▪ Geometry Creation ▪ Geometry Discretization ▪ Tooth Discretization ▪ LTCA Setup ▪ Commerical Gear Software on the Market ▪ General LTCA Methods ▪ LTCA Analytical Tooth Stiffness Models ▪ Downside of the Decoupled Slice Method ▪ 3 Tier Gear Design ▪ What Separates Different Software? ▪ Improvements Implemented in Dissertation ▪ Looking Forward ▪ Loaded tooth contact analysis (LTCA) models the meshing of a loaded gear pair over the range of the mesh cycle, through discretization of the geometry of the mating gears for both stiffness and contact, to determine outputs such as contact pressure, contact pattern, transmission error, and ,directly or indirectly, bending stress. ▪ On the other hand, tooth contact analysis (TCA), models the meshing of a gear pair over the range of the mesh cycle through discretization of the geometry of the mating gears only for contact, and not for stiffness, and models an interference between the mating gears, to determine contact pattern.
    [Show full text]
  • Download the PLM Industry Summary
    PLM Industry Summary Jillian Hayes, Editor Vol. 14 No 30 Friday 27 July 2012 Contents CIMdata News _____________________________________________________________________ 2 CIMdata Brings PLM Certificate Program to Germany __________________________________________2 CIMdata Publishes Executive PLM Market Report _____________________________________________4 Acquisitions _______________________________________________________________________ 6 3D Systems Acquires Viztu Technologies ____________________________________________________6 Company News _____________________________________________________________________ 6 AVEVA Presents the Design Efficiency Factors Influencing the Future of Plant Design Software ________6 Dassault Systèmes and Shanghai Municipal Engineering Design Institute (Group) Co. Ltd (SMEDI) to Open a Joint R&D Center for Civil Engineering ____________________________________________________7 Dassault Systèmes Spins-Off Transcat PLM __________________________________________________8 EcoCAR 2 Teams from Ohio State University, University of Victoria and Embry-Riddle Receive MathWorks Modeling Award ______________________________________________________________9 FoFdation Project Progress Presented at CIRP Conference ______________________________________11 Hagerman & Company Earns Autodesk Factory Design Suite Specialization _______________________12 Infosys to Expand its U.S. Operations with a New Delivery Center in Wisconsin ____________________13 Lightworks Partners with AMD ___________________________________________________________14
    [Show full text]
  • Simulation-Based Development of Automotive Control Software with Modelica
    Proceedings 8th Modelica Conference, Dresden, Germany, March 20-22, 2011 Simulation-based development of automotive control software with Modelica Emmanuel Chrisofakis1, Andreas Junghanns2, Christian Kehrer3, Anton Rink1 1Daimler AG, 70546 Stuttgart 2QTronic GmbH, Alt-Moabit 91a, 10559 Berlin 3ITI GmbH, Webergasse 1, 01067 Dresden {emmanuel.chrisofakis, anton.rink}@daimler.com, [email protected], [email protected] Abstract development of control algorithms. This paper presents technology targeted toward the late stages in We present and discuss the Modelica-based develop- the development process, like tuning, validating and ment environment currently used by Daimler to de- debugging the entire controller software in closed velop powertrain control software for passenger cars. loop with simulated plant models. Virtualizing these Besides well calibrated vehicle models, the environ- later engineering tasks requires plant models with in- ment supports automotive standards such as A2L, creasingly higher quality (physical effects modeled MDF, CAN, and XCP to integrate control software and quality of calibration) and near-production con- and simulated vehicles on Windows PCs. troller software (percentage of the controller soft- Keywords: automotive software development, soft- ware included, parameterization using production ware in the loop parameter sets and adaptation of the software to the plant) to be coupled. A tool-chain supporting such coupling should 1 Introduction • be easy to set up and use by automotive de- velopers who are usually not computer sci- More and more automotive functions are implemen- entists ted using software. Hence, there is an increasing de- • support many of the engineering tasks usu- mand to support the corresponding development pro- ally performed with physical prototypes to cess using virtual, i.
    [Show full text]
  • Replacing Lost Fingers Global Gas Turbine News Freezing in Place
    Replacing Freezing Global Gas lost fi ngers in place Turbine News THE MAGAZINE OF ASME SPLIT DECISIONS E iciencies improve when the engineer and project manager see eye to eye. VOL.133/NO.8 AUGUST 2011 | WWW.MEMAGAZINE.ORG Great engineering requires ingenuity . So does great insurance. Life Happens! 5IBUTXIZ"4.&TFUVQUIFQFBDFPGNJOE The ASME Group Disability QSPUFDUJPOPGGFSFEUISPVHIUIF"4.&(SPVQ%JTBCJMJUZ Income Insurance Plan *ODPNF*OTVSBODF1MBOwUPIFMQHJWFZPVBTPMJETBGFUZ Plan features include: OFUBHBJOTUBQPTTJCMFGJOBODJBMIBSETIJQSFTVMUJOHGSPNB EJTBCMJOHJOKVSZPSJMMOFTT r High-value monthly bene ts up to $7,500.00 r#FOFàUTBSFOUUJFEUPBKPCPSFNQMPZFS "TBO"4.&NFNCFS ZPVIBWFUIJTWBMVBCMFPQQPSUVOJUZ HJWJOHZPVNPSFáFYJCJMJUZXJUIQPUFOUJBM UPIFMQQSPUFDUZPVSGJOBODJBMGVUVSFXJUIUIJTQMBOEFTJHOFE DBSFFSDIBOHFT TQFDJGJDBMMZGPSFOHJOFFSJOHQSPGFTTJPOBMT HJWJOHyou the r#FOFàUTDBOCFQBJEQFSDFOUUBY GSFFXIFOZPVQBZQSFNJVNTZPVSTFMG GMFYJCJMJUZUPUBJMPSMFWFMTPGDPWFSBHFUPNFFUZPVSPXO DJSDVNTUBODFT*OBEEJUJPO ZPVBMTPIBWFUIFBEWBOUBHF PGHSPVQSBUFTUPIFMQLFFQDPTUTBTBGGPSEBCMFBTQPTTJCMF Is your insurance ready to help protect your income? For information on features, costs, eligibility, renewability, limitations, exclusions and terms of coverage, call 1-800-289-ASME (2763) or visit www.asmeinsurance.com/disability This program is administered by Marsh U.S. Consumer, a service of Seabury & Smith, Inc., d/b/a in CA Seabury & Smith Insurance Program Management. CA Ins. Lic. #0633005. AR Ins. Lic. #245544. Coverage may vary or may not be available in all states. The Group
    [Show full text]