Concurrency design

Jin, Y., Levitt, R. E., Christiansen, T. R. and Kunz, I. C. 1995 Modelling Organisational Behaviour of Concurrent Design Teams. Artificial Intelligence for Engineering Design Analysis and Manufacturing, 9(2), 145-158. 

Practical guidelines on how to deal with concurrency in a design—covering issues of interference (safety) and cooperation (liveness)—and higher-level concurrency design constructs are included in [Lea96],... 

Differentiate between iterative and concurrent design processes. 

D.L. McDowell Simulation-assisted materials design for the concurrent design of materials and products. J. Mins. Metis. Matls. Soc. 59, 21-25 (2007)... 

This would avoid the necessity of actual controller synthesis, which is obviously unattractive and could be quite time-consuming. One approach for control evaluation discussed earlier is the relative gain array (72), (74). No actual synthesis of the controller is required in these algorithms. The development of such screening tools is still in its infancy but appears to be quite promising for concurrent design/control evaluation. Such techniques, if simple to use, would be immediately acceptable for use by major engineering firms and the process industries. 

However, this problem can be easily avoided through straightforward concurrent design. One might also argue that building a large pilot plant or a small demonstration plant could minimize some of these difficulties and risk involved. For example, the Exxon case, in which an expensive demonstration plant was built to demonstrate the new Fischer-Tropsch process, is well known [6.40]. This type of expensive unit can be justified in some special cases but will not always be necessary. 

Environment ecology and a concurrent design approach Allenby,... 

Concurrently design test structures and develop test models dedicated solely to extracting critical model parameters from electrical precision measurements on the wafer level. Improve fabrication processes using test structures early in the sensor development phase and well in advance of starting production. Eventually, reduce the number of test structures and the wafer space they occupy, optimize testing time and equipment, and then commit a test setup to production. 

Shiimar, R., A systematic methodology for the design, development, and scale-up of complex chemical processes The role of control and concurrent design, Ind. Chem. Eng. Res., 2004, 43(2), 246-269. 

Nevins, J. L. and Whitney, D. E., Eds. (1989), Concurrent Design of Product and Processes, McGraw-Hill, New York. 

RE. Dewdney, P.J. HaU, R.T. Schilizzi, T.J.L.W. Lazio, The square kilometre array. Proc. IEEE 97(8), 1482-1496 (2009). ISSN 0018-9219. doi 10.1109/JPROC.2009.2021005 H. Dole, G. Lagache, J.-L. Puget, K.I. Caputi, N. Femandez-Conde, E. Le Floc h, C. Papovich, P.G. P6rez-Gonzalez, G.H. Rieke, M. Blaylock, The cosmic infrared background resolved by Spitzer. Astron. Astrophys. 451(2), 417-429 (2006). doi 10.1051/0004-6361 20054446 ESA Concurrent Design Facility. Far Infrared Interferometer—CDF Study Report. CDF-49(A) 1-294, (2006). http //sci.esa.int/future-missions-office/40738-firi-cdf-study-report/... 

The Instrument Thermal System is divided in two parts, the Warm Optics Module and the Cold Optics Module. In the Warm Optics module the emissivity and transmission of the optics external to the cryostat are modelled. In the Cold Optics Module the emissivities and transmissions of the optics from the cryostat window to the detectors are modelled. The current cold optics design is based on a FIRI design presented at the CDF Report (ESA Concurrent Design Facility 2006). The warm optics consists of a two telescope interferometer. 

ESA Concurrent Design Facility. Ftir Inflated Interferometer—CDF Study Report. CDF-49(A), 1-294 (2006). http //sci.esa.int/future-missions-office/40738-firi-cdf-study-report/... 

The thermal system (optics modules) in FllnS has been modelled according to the FIRI-CDF Study Report (ESA Concurrent Design Facility 2006). Variations of this optical setup will require to perform some minimal modifications in FllnS. Currently the cold optics emissivities and transmission (and hence reflection) are constant along the band of operation of the instrument. To input transmission profiles from the different optical elements will narrow the gap between an ideal simulator and a much more realistic one. 

Kusiak, A., and Wang, J. Decomposition in Concurrent Design, Concurrent Engineering. Automation, Tools, and Techniques, A. Kusiak (ed.), John Wiley Sons, New York, 1993 pp. 481-507. 

Xue, D., and Dong, Z. Feature Modeling Incorporating Tolerance and Production Process for Concurrent Design, Concurrent Engineering Research and Applications, vol. 1, no. 2 (1993) pp. 107-116. 

In any case, fault detection and isolation is a prerequisite for real-time system supervision. In order to ensure reliability and safety it is important to take into account detection and diagnosis of possible abnormal system behaviour and means for automatic correction already during an integrated, concurrent design of complex intelligent mechationic system by deliberately injecting faults into a system model and to study their effects on the system s dynamic behaviour. 

Concurrent Engineering (CE) is a comprehensive, systematic approach to the integrated, concurrent design and development of complex products and their related processes, including marketing, manufacturing, logistics, sales, customer... 

Concurrent engineering is the systematic approach to the integrated, concurrent design of products and related processes including manufacture and support. This approach is to cause the developers, from the outset, to consider all the elements of product life-cycle from conception through disposal including quality, cost, schedule and user requirement... 

Concurrent Design Simult. engineering Life cycle models Top-Down approach Design spaces Skeleton models Knowledge-based systems Knowledge- representation... 

Fig. 23.16 Design information generated along with the concurrent design process...

To enable the application of CE in practice, technology plays an indispensable role. Achieving concurrent design of products in multi-site, multi-organisational and... 

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