Academic literature on the topic 'Concurrent Design Facility'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Concurrent Design Facility.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Concurrent Design Facility"
1
García-Pérez, Andrés. "Optimum preliminary design of ion thrusters in concurrent design facility." Concurrent Engineering 28, no. 3 (July 20, 2020): 189–97. http://dx.doi.org/10.1177/1063293x20938422.
Full textAbstract:
In recent years, the development of new satellites has accelerated, especially for small satellites like university-class Cubesats, due to low design and manufacturing costs. The preliminary design of these spacecraft requires the utilization of new tools that improve the interrelation among the different subsystems and optimize the design. One of the most suitable approaches is the concurrent design facility, which connects specialists of each subsystem in the same room to facilitate the communication among them. This method provides different preliminary designs for the complete system by an iterative process in a reduced time, taking into account the simultaneity with the designs of the subsystems. One of the main subsystems of a spacecraft is the propulsion system, which plays a key role in the success of a mission by allowing the spacecraft to reach the final destination. Electric propulsion has become an interesting option due to the high value of the specific impulse, which provides the necessary velocity increment with a lower propellant mass compared to the traditional chemical rockets. The purpose of this paper is to present the equations implemented in the propulsion module of the concurrent design facility to obtain optimum designs of ion thrusters, which supposes a novelty compared to the traditional design approach of these systems, where there is no interaction with the design of the rest of subsystems. The objective is to help the designer to select the best options in a fast and easy way and improve the efficiency of the iterative work of the concurrent design facility.
2
Hassan, Noha M., Talal Al Maazmi, Ali Al Hadhrami, and Mohamed Al Hosani. "Discrete event simulation: a vital tool for a concurrent life cycle design." Construction Innovation 16, no. 1 (January 4, 2016): 67–80. http://dx.doi.org/10.1108/ci-11-2014-0054.
Full textAbstract:
Purpose – The purpose of this study is to examine whether discrete event simulation (DES) can be equally utilised in the design phase of the architecture, engineering and construction industry (AEC) projects to achieve a more efficient facility layout. Facility design is a complex process involving diverse disciplines, tasks, tools and events. Integrating key participants involved in the design generally leads to a more satisfied end-user. The AEC thoroughly examined different approaches to enhance this integration through improved communication, visualisation and coordination among the different project participants. DES has been used extensively as a tool for analysis and evaluation, especially during the construction process. Design/methodology/approach – A facility planning framework is illustrated that combines both qualitative and quantitative analysis to achieve a performance-driven design. An investigative qualitative research approach is used to determine the design criteria and performance metrics based on the end-user and authority requirements. This approach is achieved by conducting critical reviews, surveys, focus groups and interviews. The research findings and collected data are used to perform a quantitative analysis to determine the effectiveness of the proposed design if constructed using DES. The potential of the method is shown through a case study to design a mall parking facility. Findings – The case study illustrated the capability of DES to improve construction design by comparing the artificially designed facility following the proposed framework to an existing facility. Increasing customer satisfaction by enhancing safety, minimising waiting time and maximising parking spot availability were the performance metrics used to evaluate the designs. DES was used as a tool to measure these criteria. Utilising DES in facility design increased resource utilisation and resulted in a safer layout that satisfied the end-user, client and authority requirements. Originality/value – Previous studies focused on integrating other modules such as energy, HVAC, lighting, acoustics and life cycle analysis to achieve a performance-driven design. The overwhelming majority of the literature focused on the use of DES for improving construction operations. Research literature about integrating DES as a tool for concurrent life cycle design was scarce. This research demonstrated that DES is an effective method and a vital key for determining the facility’s operational efficiency after construction.
3
Salas Cordero, S. K., C. Fortin, and R. Vingerhoeds. "CONCURRENT CONCEPTUAL DESIGN SEQUENCING FOR MBSE OF COMPLEX SYSTEMS THROUGH DESIGN STRUCTURE MATRICES." Proceedings of the Design Society: DESIGN Conference 1 (May 2020): 2375–84. http://dx.doi.org/10.1017/dsd.2020.96.
Full textAbstract:
AbstractWhilst Concurrent Conceptual Design (CCD) has been performed for many years at facilities such as: the Concurrent Design Facility at ESA and the Project Design Center at JPL-NASA, the sequencing know-how resides in their communities of practice. This paper strives to explain how a sequencing algorithm based on Design Structure Matrices can be used as an instrument to facilitate the interaction between disciplines during CCD studies for Model-Based systems exemplified with two case studies.
4
Pambaguian, Laurent, Eleonie van Schreven, and Ilaria Roma. "Space Hardware Advanced Manufacturing Engineering: SHAME to miss out on a potential game changer?" Concurrent Engineering 26, no. 1 (February 12, 2018): 117–26. http://dx.doi.org/10.1177/1063293x17751831.
Full textAbstract:
Advanced Manufacturing is widely used with features and applications playing a game changing role in our daily life. The European Space Agency has initiated in April 2016 a multi-disciplinary approach exploring the impact of infusing Advanced Manufacturing into space practices. A Concurrent Design Facility study was performed investigating potential design methodology amendments produced by introducing Advanced Manufacturing techniques into the design space. Innovative materials and processes were added to the conventional design parameters usually populating the systems design trade-spaces. This enabled multifunctional solutions, previously inconceivable, with a redefinition of interfaces and related requirements, shifted from ‘discipline’ boundaries to ‘units’ or ‘assembly’ boundaries. The Concurrent Design Facility Study identified the core domains of expertise required in a ‘Design for Advanced Manufacturing’ frame, governed by a flexible, open-minded systems engineering coordination. Early involvement of material and process engineers in the design proved to be an essential ingredient of the ‘Design for Advanced Manufacturing’ recipe. The design freedom brought by Advanced Manufacturing calls for unconventional design solutions, creativity becomes a need and infusion from non-space is invaluable. Biomimicry and architecture principles enriched the concurrent design environment, which proved to be very well suited with the needs and objectives of the new design methodology. This article reports the Concurrent Design Facility study conduct, as first attempt to understand Advanced Manufacturing impact on design methodology, the study cases selected for analysis, the observations on the methodology and on the interactions among the specialists in the team. The study outcome is reported, including an overview of benefits, disadvantages and points for further investigation in relation to the study cases assessed. In addition, the paper proposes recommendations for injecting Advanced Manufacturing into the project life cycle, from early design up to procurement phases and ultimately to the assembly, integration and verification phases, indicating required modelling tools, technologies and redefined engineering roles and expertise.
5
Fischer, Philipp Martin, Meenakshi Deshmukh, Volker Maiwald, Dominik Quantius, Antonio Martelo Gomez, and Andreas Gerndt. "Conceptual data model: A foundation for successful concurrent engineering." Concurrent Engineering 26, no. 1 (November 14, 2017): 55–76. http://dx.doi.org/10.1177/1063293x17734592.
Full textAbstract:
Today, phase A studies of future space systems are often conducted in special design facilities such as the Concurrent Engineering Facility at the German Aerospace Center (DLR). Within these facilities, the studies are performed following a defined process making use of a data model for information exchange. Quite often it remains unclear what exactly such a data model is and how it is implemented and applied. Nowadays, such a data model is usually a software using a formal specification describing its capabilities within a so-called meta-model. This meta-model, often referred as conceptual data model, is finally used and instantiated as system model during these concurrent engineering studies. Such software also provides a user interface for instantiating and sharing the system model within the design team and it provides capabilities to analyze the system model on the fly. This is possible due to the semantics of the underlying conceptual data model creating a common language used to exchange and process design information. This article explains the implementation of the data model at DLR and shows information how it is applied in the concurrent engineering process of the Concurrent Engineering Facility. It highlights important aspects concerning the modeling capabilities during a study and discusses how they can be implemented into a corresponding conceptual data model. Accordingly, the article presents important aspects such as rights management and data consistency and the implications of them to the software’s underlying technology. A special use case of the data model is depicted and shows the flexibility of the implementation proven by a study of a multi-module space station.
6
Abdalla, H. S., and J. Knight. "An Expert System for Concurrent Product and Process Design of Mechanical Parts." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 208, no. 3 (August 1994): 167–72. http://dx.doi.org/10.1243/pime_proc_1994_208_075_02.
Full textAbstract:
A new approach for concurrent product and process design of mechanical parts is presented in this paper. This approach enables designers to ensure that the product will be manufactured with the existing manufacturing facility at high quality and lowest cost. It is composed of an integrated expert and CAD (computer aided design) system that meets the requirements for accomplishing the concept of design for manufacturability or concurrent engineering. The system is based mainly on three tasks: firstly, developing a technique for automated feature recognition from the database of a solid modeller; secondly, interfacing the expert system tool-kit with the solid modelling system; finally, building an expert system that contains extensive information about both manufacturing facilities and product features. The expert system provides feedback about manufacturing concerns such as process limits or design inconsistencies. This work is part of the present extended research plan for developing a generic system suitable for various manufacturing practices based on design for manufacturability strategy.
7
Kempf, Scott, Frank K. Schäfer, Tiziana Cardone, Ivo Ferreira, Sam Gerené, Roberto Destefanis, and Lilith Grassi. "Simplified spacecraft vulnerability assessments at component level in early design phase at the European Space Agency's Concurrent Design Facility." Acta Astronautica 129 (December 2016): 291–98. http://dx.doi.org/10.1016/j.actaastro.2016.08.014.
Full text
8
McDonald, Robert A., Brian J. German, T. Takahashi, C. Bil, W. Anemaat, A. Chaput, R. Vos, and N. Harrison. "Future aircraft concepts and design methods." Aeronautical Journal 126, no. 1295 (December 6, 2021): 92–124. http://dx.doi.org/10.1017/aer.2021.110.
Full textAbstract:
AbstractWith an annual growth in travel demand of about 5% globally, managing the environmental impact is a challenge. In 2019, the International Civil Aviation Organisation (ICAO) issued emission reduction targets, including well-to-wake greenhouse gas (GHG) emissions reduced at least 50% from 2005 levels by 2050. This discusses several technologies from an aircraft design perspective that can contribute to achieving these targets. One thing is certain: aircraft will look different in the future. The Transonic Truss-Braced Wing and Flying V configurations are promising significant efficiency improvements over conventional configurations. Electric propulsion, in various architectures, is becoming a feasible option for general aviation and commuter aircraft. It will be a growing field of aviation with zero-emissions flight and opportunities for special missions. Lastly, this paper discusses methods and design processes that include all relevant disciplines to ensure that the aircraft is optimised as a complete system. While empirical methods are essential for initial design, Multidisciplinary Design Optimisation (MDO) incorporates models and simulations integrated in an optimisation environment to capture critical trade-offs. Concurrent design places domain experts in one site to facilitate collaboration, interaction, and joint decision-making, and to ensure all disciplines are equally considered. It is supported by a Collaborative Design Facility (CDF), an information technology facility with connected hardware and software tools for design analysis.
9
Hibino, Hironori, Toru Sakuma, and Makoto Yamaguchi. "Evaluation System for Energy Consumption and Productivity in Manufacturing System Simulation." International Journal of Automation Technology 6, no. 3 (May 5, 2012): 279–88. http://dx.doi.org/10.20965/ijat.2012.p0279.
Full textAbstract:
Industries need to design and improve their manufacturing systems while considering energy consumption and productivity concurrently. Manufacturing system simulation is often used to evaluate productivity when manufacturing systems are designed or improved. However, it is difficult to use simulation to evaluate energy consumption when designing and improving manufacturing systems. The purpose of our research is to establish a system for the concurrent evaluation of energy consumption and productivity in manufacturing system simulation. In this paper, first, requirements for a simulation to evaluate energy consumption and productivity are analyzed. Second, an evaluation system is proposed in consideration of the requirements. A Unified Modeling Language (UML) model that defines facility state transitions and relationships between the facility state and energy consumption is proposed. A manufacturing system simulation implemented in the proposed UML model is also proposed and developed. The proposed simulation is also implemented in a function to concurrently generate information on production throughput and energy consumption along a time progression. A system that provides a function to visually evaluate dynamic changes in the energy consumption per unit of production throughput along a time progression is also proposed and developed. Finally, a case study for semiconductor manufacturing systems is carried out to confirm the efficiency of our proposed evaluation system.
10
Hein, Cheryl M. "Driving Simulators: Six Years of Hands-On Experience at Hughes Aircraft Company." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 37, no. 9 (October 1993): 607–11. http://dx.doi.org/10.1177/154193129303700920.
Full textAbstract:
In 1987 Hughes Aircraft Company launched a fledgling driving simulation laboratory. For six years the facility has been actively used for human factors research, product design and engineering, market research and the development of simulation technology. Review this facility's brief history reveals a concurrent evolution in sophistication of technical capability and applications with some interesting lessons learned regarding the use of driving simulators. The implications for researchers and product developers considering the use of driver-in-the-loop simulation tools are discussed.
Dissertations / Theses on the topic "Concurrent Design Facility"
1
Chae, Junjae. "Concurrent design of facility layout and flow-based department formation." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/1606.
Full textAbstract:
The design of facility layout takes into account a number of issues including the formation of departments, the layout of these, the determination of the material handling methods to be used, etc. To achieve an efficient layout, these issues should be examined simultaneously. However, in practice, these problems are generally formulated and solved sequentially due to the complicated nature of the integrated problem. Specifically, there is close interaction between the formation of departments and layout of these departments. These problems are treated as separate problems that are solved sequentially. This procedure is mainly due to the complexity of each problem and the interrelationships between them. In this research, we take a first step toward integrating the flow-based department formation and departmental layout into comprehensive mathematical models and develop appropriate solution procedures. It is expected that these mathematical models and the solution procedures developed will generate more efficient manufacturing system designs, insights into the nature of the concurrent facility layout problem, and new research directions.
2
CASINI, ANDREA EMANUELE MARIA. "Multidisciplinary modelling and simulation for assisting the space mission design process using Virtual Reality." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2715849.
Full textAbstract:
Space mission design is a complex discipline. Several research studies are currently investigating how to ameliorate the process. Since the decision taken during the early phases of the project are those which affect the most the final solution of a system in terms of architecture, configuration, and cost, more efforts are sunk in these stages for not jeopardizing the entire product life-cycle stages. As the stakeholders and the other actors involved in the design process should face low levels of knowledge associated to the system in the conceptual stages, the decision-making process is intrinsically affected by uncertain results. Each choice made in this risky scenario affects the next design iterations, therefore a suitable design approach is needed. Several methodologies have been proposed by both academia and industry in the field of System Engineering (SE). The current trend is to adopt a Model Based System Engineering (MBSE) approach coupled with Concurrent Engineering (CE) paradigms.
The model-based methodology overcomes the weaknesses of a document-based one, aggregating all the relevant information and engineering data into a system model, which evolves as the real system throughout all the product life-cycle phases. The systematic CE approach is able to involve several experts in a multidisciplinary working context, where data, ideas, and solutions are shared at the same time using a common platform. Both the approaches help to shorten time and cost of the overall design process and prevent possible mistakes which could worsen the final solution if not identified earlier enough, thus maximizing the efficiency of each design session. However, negotiations still result to be as one of the most complicated and frustrating part of the whole design process. Moreover, the recent space exploration scenarios proposed by national agencies are characterized by multiple actors of different extractions, but commonly participating into shaping future goals. The broader is the international cooperation framework, the more complex will be to design a space mission, especially considering the negotiation goals to be handled by the different experts involved.
The present Ph.D. thesis is aiming to cast some lights on the integration of Virtual Reality (VR) within the standard design tools to assist the space mission design process. The creation of a virtual model for simulating different features of a system allows to analyse aspects which may be overlooked, especially in the early design phases, such as ergonomics, operations, and training. The intuitive interaction with human senses and the immersion into a 3D Virtual Environment (VE) guarantee fundamental improvements and evaluation of different solutions that are updated in real-time, benefitting the entire design process, especially the early phases. The visualization of different system features at a single glance permits direct data and information exchange, enabling more direct communications among the design team. The possibility to use a distributed and shared architecture, implemented into a standard Concurrent Design Facility (CDF) setup, enhances in-depth analysis even in the product development phase. This unique VE can simulate functional and physical behaviours of the virtual replica, helping to optimize future space systems.
To test the VR-based methodology, a first proof of concept has been generated following the recent incremental and evolutionary architecture strategy of considering the Moon as the next step for the human exploration of Mars and the Solar System. According the exploration roadmaps, a permanent surface base is envisioned as an efficient test-bed for assessing critical technologies to be used for future deep-space endeavours. A preliminary mission scenario has been generated which targets to settle the outpost at the lunar south pole. The peculiar environment conditions make the area rich in volatiles to examine and exploit, especially considering the permanently shadowed regions that are supposed to contain icy water deposits, which are of paramount importance for human missions. A closed-loop power system, comprising solar panels, batteries, fuel cells, electrolysers, has been sized according the settlement power needs.
This research work presents an integrated simulation case study that has been run using a VE to arrive at a preliminary estimate of the performance of both the power system and the VR tool. Virtues and vices of the proposed VR-based methodology have been listed together with possible future improvements for this research field.
3
Bennes, Lionel. "Vers une méthodologie de développement d'outils de réalité virtuelle pour faciliter la convergence métiers en conception de produits centrée sur l'homme." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2013. http://tel.archives-ouvertes.fr/tel-00931376.
Full textAbstract:
La conception concourante de produits matériels centrée sur l'homme est basée sur une collaboration entre le concepteur mécanicien, l'ergonome et le designer industriel. Cette collaboration souvent difficile peut être facilitée par l'utilisation d'objets intermédiaires de conception, tels que la Réalité Virtuelle (RV). Néanmoins, bien que largement utilisée dans l'industrie, la RV souffre d'un déficit d'acceptation de la part des concepteurs de produits. Dans le cadre de ces travaux, nous proposons d'utiliser la RV sous la forme d'outils immersifs d'assistance à la convergence multidisciplinaire développés selon une démarche anthropocentrée en fonction des besoins spécifiques à chaque projet de conception de produits. Afin d'optimiser les délais de développement, nous proposons une méthodologie de conception d'applications immersive dédiée : la méthodologie ASAP(As Soon As Possible). Une première série expérimentale a été conduite dans le cadre de contrats industriels d'études et de recherche afin de valider la faisabilité de la méthodologie et l'efficacité des outils développés.Une deuxième série expérimentale a été effectuée sur plus de 50 sujets dans le cadre de projets, cette fois, pédagogiques qui ont nécessité le développement de 12 applications. Elle a permis de valider quantitativement l'influence des outils immersifs sur l'efficacité perçue des phases de convergence interdisciplinaires ainsi que l'influence de l'approche proposée sur l'acceptation de la RV par les concepteurs de produits. Ces travaux de thèse présentent une première approche qui, selon nous, permettra à terme, de faire évoluer l'usage de la RV vers une intégration plus forte au sein des processus de conception de produits avec, par exemple, une plus large utilisation des applications immersives de modélisation 3D, réelles sources d'innovation.
Books on the topic "Concurrent Design Facility"
1
Healey, Gordon James. The design and implementation of an exception handling facility for concurrent Euclid. Toronto: University of Toronto, Dept. of Computer Science, 1986.
Find full textBook chapters on the topic "Concurrent Design Facility"
1
Liapis, Aggelos, and Evangelos Argyzoudis. "Galileo Case Study." In Designing, Engineering, and Analyzing Reliable and Efficient Software, 251–82. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2958-5.ch015.
Full textAbstract:
The Concurrent Design Facility (CDF) of the European Space Agency (ESA) allows a team of experts from several disciplines to apply concurrent engineering for the design of future space missions. It facilitates faster and effective interaction of all disciplines involved, ensuring consistent and high-quality results. It is primarily used to assess the technical and financial feasibility of future space missions and new spacecraft concepts, though for some projects, the facilities and the data exchange model are used during later phases. This chapter focuses on the field of computer supported collaborative work (CSCW) and its supporting areas whose mission is to support interaction between people, using computers as the enabling technology. Its aim is to present the design and implementation framework of a semantically driven, collaborative working environment (CWE) that allows ESA’s CDF to be used by projects more extensively and effectively during project meetings, task forces, and reviews.
Conference papers on the topic "Concurrent Design Facility"
1
Bil, Cees, and Pier Marzocca. "CONCURRENT DESIGN FACILITY FOR AEROSPACE EDUCATION." In International Conference on Education and New Learning Technologies. IATED, 2017. http://dx.doi.org/10.21125/edulearn.2017.1284.
Full text
2
Sayed, Tohamy Hassan, A. A. Mitkees, Fawzy Eltohamy, M. Zayan, and A. El Rafiee. "Modified concurrent design facility for emerging countries." In 2016 IEEE Aerospace Conference. IEEE, 2016. http://dx.doi.org/10.1109/aero.2016.7500574.
Full text
3
Ivanov, Anton B., Louis Masson, and Federico Belloni. "Operation of a Concurrent Design Facility for university projects." In 2016 IEEE Aerospace Conference. IEEE, 2016. http://dx.doi.org/10.1109/aero.2016.7500631.
Full text
4
Braukhane, A., and D. Quantius. "Interactions in space systems design within a Concurrent Engineering facility." In 2011 International Conference on Collaboration Technologies and Systems (CTS). IEEE, 2011. http://dx.doi.org/10.1109/cts.2011.5928714.
Full text
5
Anthony, Richard J., John P. Clark, John M. Finnegan, and Dean Johnson. "Modifications and Upgrades to the AFRL Turbine Research Facility." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-70084.
Full textAbstract:
The Turbine Research Facility (TRF) at the Air Force Research Laboratory has undergone a two-year effort to enhance and modernize multiple systems for advanced study of unsteady turbine aerodynamics and heat transfer. This paper provides an overview of several concurrent projects to upgrade a number of facility hardware and software systems. A unique scalable high speed, high channel count data acquisition architecture is developed with modern hardware and software that expands capability while maintaining compatibility and synchronization with legacy hardware. The combination of both new and existing channels with custom Matlab-based data acquisition and processing code provides accurate and efficient signal processing and display for over 750 high speed data channels. Codes are integrated with a new Turbine Design and Analysis System that provides design CFD modeling, optimization, and post-test analysis. The paper describes a new 1+ 1/2 stage cooled high pressure research turbine that has been designed, instrumented, and tested. Initial cooled vs. uncooled data comparisons are given including fast response unsteady airfoil pressure and heat flux. This work further describes significant modification to the TRF rotordynamic drive system. Analysis and mechanical re-design have been completed to mitigate vibration effects. Facility monitoring and control upgrades are implemented to improve test situational awareness and safety. Updated cryogenic cooling hardware and software improve cooling flow delivery to HPT airfoils, platforms, and blade outer air seals. Future work includes continued research turbine testing, industry test rig collaboration, new instrumentation technology, and advanced modeling and simulation development.
6
Xirouchakis, Paul C. "A Modeling and Design Method for Flexible Manufacturing System Controller Software." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/cie-1323.
Full textAbstract:
Abstract “Entity-life modeling” (ELM) is a general method for the modeling and design of concurrent software. One area where it can applied is for the control software for flexible manufacturing systems (FMS). The application of ELM allows the integration and overall control of the operation of the numerically controlled machinery, the material transportation and storage facilities into automated factories within the context of computer integrated manufacturing (CIM). The development of flexible manufacturing has been hampered by the lack of such a general approach to FMS software design. ELM is based on the principle that processes and objects in the software are patterned after concurrent “threads of events” and objects in the problem domain. A job in an FMS represents such a thread with events such as “pick from storage”, “place on stand”, etc., which all occur sequentially and with certain time intervals. Several job threads are in progress simultaneously as different jobs are being processed. In the software, a thread of events is represented by a process, such as an Ada task. The direct coupling between the analysis and an efficient control-system software implementation is an advantage over other analysis models, such as Petri nets. A simple FMS is used as an example. It consists of a storage facility and a number of numerically controlled workstations. A conveyor belt is used for the transportation of parts between storage and workstations and between workstations.
7
Hoffmann, Jennifer, Marlon Deutsch, and Reinhold Bertrand. "Development of a concurrent engineering tutorial as part of the “ESA_Lab@” initiative." In Symposium on Space Educational Activities (SSAE). Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788419184405.029.
Full textAbstract:
As part of the “ESA_Lab@" initiative, a Concurrent Engineering facility has been constructed at the Mechanical Engineering department of Technical University Darmstadt. Concurrent Engineering is a well-proven concept for designing complex space systems and missions in the pre-phase 0/A mission phase. The Concurrent Engineering methodology and processes are enabled by a multidisciplinary team and specific infrastructure in terms of both hardware and software, which generate an effective and time efficient design management system. The university’s “Concurrent Engineering Lab” provides an environment for both researchers and students to explore and apply the Concurrent Engineering approach in areas such as (model-based) systems engineering, Industry 4.0/ Space 4.0, and space traffic management. Furthermore, collaboration with the European Space Operations Centre – also located in Darmstadt – regarding the application of Concurrent Engineering for Ground Segment & Operations has been started. The first addition to the university’s curriculum centered around the Concurrent Engineering Lab will be a “Concurrent Engineering Tutorial”, an opportunity to introduce the Concurrent Engineering methods and tools via hands-on experience to students of the newly established master’s degree program “Aerospace Engineering”. “Tutorials” are elective block courses of the degree program which offer practical learning experiences in many different fields, awarding 4 credit points upon successful completion. Building on the lectures "Fundamentals of Space Systems" and "Space Systems and Space Operations", the week-long “Concurrent Engineering Tutorial” will challenge students to use their acquired knowledge to develop a preliminary design for a predefined CubeSat mission. This Tutorial will not only provide a closer understanding of the individual subsystems of the space segment of a mission, the Concurrent Engineering process and the relevant software “COMET” by RHEA Group but will also create a synergy with a student association of the university, as one of their projects is the development of a CubeSat. This paper describes the background and approach to the development of the Tutorial, in particular the structure of the re-usable model architecture in “COMET”, which was specifically derived and implemented for this purpose and validated via a pilot study
8
Middleton, Bobby D., and Carmen Mendez. "Integrating Safety, Operations, Security, and Safeguards Into the Design of Small Modular Reactors." In ASME 2014 Small Modular Reactors Symposium. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smr2014-3336.
Full textAbstract:
The existing regulatory structure for nuclear power plants impacts both the design and the operation of the facility [1]. The current structure has been known to be overly conservative in several instances. This overly conservative approach results in operational costs to the facility that decrease the profit margin for nuclear power companies. The current design and build process also results in expensive retrofitting and contributes excess costs to the operations of the facility [1]. The current fleet of nuclear reactors is composed mainly of large light water reactors (LWRs) that can, to some extent, counteract these operational costs by the sheer volume of energy produced. However, the deliberately small size of small modular reactors (SMRs) prevents them from benefitting from this economy of scale. In order to be built and operated economically, SMR vendors must find ways to bring the life cycle costs in line with the economic requirements of nuclear power companies. Sandia National Laboratories has developed a framework that allows vendors and operators to address many of the operational costs during the design and manufacture stages of the SMR life cycle. The framework allows certain operational costs to be addressed in the design stages, thereby decreasing the operational costs, especially those costs associated with staffing and retrofitting. The framework pulls together best practices that have been applied successfully in other industries. Concurrent Engineering (CE) frames the procedural stages, from defining the expectations of the facility deployment, through the identification of regulatory requirements, to the pre-conceptual, conceptual and detailed design stages. A Project Management Organization is critical to the time management and success of implementing CE. The use of Integrated Safety, Operations, Security, and Safeguards (ISOSS) will lead to achieve a more efficient, cost-effective, and reliable plant. The Balance Model is introduced as a tool to document conflicts between functional areas and identify balancing strategies for conflict resolution in the requirements. Life-Cycle Cost Analysis (LCCA) is proposed as a variable for decision making. Facility Lifecycle Management with Building Information Modeling (BIM) is encouraged to support the Build, Activation, Continued Operations and Decommissioning of the facility [1]. To ensure that the deployment of SMR is effective and cost efficient, the ideal time to implement the framework is now, before SMR designs reach the detailed stage. SMRs hold a lot of potential and this framework can help the nuclear industry realize that potential.
9
Sadeh, Norman M., David W. Hildum, Stephen F. Smith, Dag Kjenstad, Thomas J. Laliberty, and John McA’Nulty. "Integration of Process Planning and Production Scheduling for Agile Manufacturing: A Case Study." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dfm-4330.
Full textAbstract:
Abstract As companies increasingly customize their products, move towards smaller lot production and experiment with more flexible customer/supplier arrangements, such as those made possible by Electronic Data Interchange (EDI), they increasingly require the ability to (1) respond quickly, accurately and competitively to customer requests for bids on new products and (2) efficiently work out supplier/subcontractor arrangements for these new products. This in turn requires the ability to (1) rapidly convert standard-based product specifications into process plans and (2) quickly integrate process plans for new orders into the existing production schedule to best accommodate the current state of the manufacturing enterprise. This paper describes IP3S, an Integrated Process Planning/Production Scheduling shell for agile manufacturing. IP3S utilizes a blackboard architecture that supports (1) concurrent development and dynamic revision of integrated process planning/production scheduling solutions, (2) maintenance of multiple problem instances and solutions, (3) flexible user-oriented decision making, (4) declarative representation of control information, (5) the use of a common representation for exchanging information, (6) coordination with outside information sources and (7) portability and ease of integration with legacy systems. IP3S has been validated in the context of a large and highly dynamic machine shop at Raytheon’s Andover manufacturing facility. Empirical results show an average performance improvement of 23% in solution quality over a decoupled approach to building process planning/production scheduling solutions.
10
Edwards-lwe, Esther A. "A Client/Server Implementation of the Design Process Using PDES/STEP “Level 3” Data Sharing Architecture." In ASME 1993 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/edm1993-0095.
Full textAbstract:
Abstract The ability to exchange and share product data between and within enterprises is essential for implementing the concepts of concurrent engineering as well as operating in a global market economy. STEP, the STandard for the Exchange of Product Model Data, is an international effort to standardize product information. Product information is used by manufacturing enterprise to design, produce, and maintain a product. The purpose of STEP is to prescribe a neutral mechanism capable of completely representing product data throughout the life cycle of a product. Data sharing can only be discussed in the context of a specific application. The scope of STEP data sharing architecture has progressed from a single shared facility to sharing multiple distributed facilities. This paper discusses the lessons learned from a prototype implementation of the mechanical part design process(es) captured in a network of heterogeneous computers and database management systems to allow for data exchange and sharing between and within an enterprise.