Design-analysis iterations

Unlike most static design procedures, dynamic design requires a trial and error approach. Only in the verification of shear capacities and in the design of support connections can member proportions be directly determined. For the dynamic analysis, the needed nonlinear response properties are determined from a trial section. The analysis results then indicate the adequacy of the trial section. Experience on the part of the designer will help in reducing the number of iterations. The use of simple computer based design approaches help to reduce the time required for each analysis iteration. 

Larman, C. 2005. Applying UML and Patterns An Introduction to Object-Oriented Analysis and Design and Iterative Development, Third Edition. Prentice Hall. Martin, R. 2003. Agile Software Development Principles, Patterns, and Practices. Prentice Hall. 

Knowledge of the critical uncertainty point and constraint allows the designer to strategically place exchangers and stream splits where they will most improve resilience. This feature tends to minimize the number of synthesis-analysis iterations required to achieve a resilient HEN. 

Selection of the fuel-element diameter is the next step in the design procedure. The tradeoff is between fabrication costs, which decrease with increasing diameter, and inventory costs, which increase with increasing diameter. Following selection of the fuel-element diameter, the surface heat flux is calculable, and the design procedure iterates considering the flux assumption made in the thermal analysis. 

The 6-methylacetylamino-l,2,3,4-tetrahydroquinoline, after nitration and separation of isomers, following reduction and deprotection, gave the 7-amino-6-methylamino derivative, which cyclized with cyanogen bromide. Alkylation of the cyclization products afforded inhibitors of thymidylate synthase, 5-substituted 2-amino-l//-l-methyl-5,6,7,8-tetrahydroimidazo[4,5-g]quinolines 136, designed for use in iterative protein crystal analysis (Scheme 42) (92JMC847). 

On the other hand, frequency response analysis cannot reveal information on dynamic response easily—something root locus does very well. Hence controller design is always an iterative procedure. There is no one-stop-shopping. There is never a unique answer. 

Akoski, J., R. D. Watson, P. L. Goranson, A. Hassanian, and J. Salmanson, 1991, Thermal Hydraulic Design Issues and Analysis for ITER Diverters, Fusion Technol. 79.-1729—1735. (4)... 

This chapter discusses various analysis methods for determining the dynamic response of structural members subjected to blast loading. In order to perform the dynamic analyses, it is necessary to have previously defined the loading as well as member properties such as stiffness and mass. The design of new structures sometimes involves several iterations of the analysis, where trial member sizes are used and the resulting response quantities are compared against the acceptance criteria defined in Chapter 5. 

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