Course details

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Course details

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Multi-Criteria Design and Optimization

Teaching: Completely taught in English
ECTS: 4
Level: Graduate
Semester: Winter
Prerequisites:
Input competences required for course attendance are obtained knowledge of basic and advanced courses of bachelor degree in technical studies
Load:
Lectures Exercises Laboratory exercises Project laboratory Physical education excercises Field exercises Seminar Design exercises Practicum
30 0 5 0 0 10 0 0
Course objectives:
Acquireing the knowledge and application of methds for optimization and multi-criteria decision making in airplane design.
Student responsibilities:
Grading and evaluation of student work over the course of instruction and at a final exam:
Student evaluation is based on exhibited competences in solution of given problems and usage of prescribed computer tools. Activities that influence final grade are: -independence in work and decision making 30% -seminar (technical report) 30% -defense of seminar 40%
Methods of monitoring quality that ensure acquisition of exit competences:
Quality monitoring is assured through: -initial discussion during which the level of previously obtained relevant knowledge and abilities is determined -continuous monitoring of contemporary research in the field of optimization/design of a aircraft and aircraft structures -self-evaluation of course and applied lecturing methods
Upon successful completion of the course, students will be able to (learning outcomes):
Apply optimization and multi-criteria design methods for solving design problems in a field of airplane design and/or other complex engineering systems design. Evaluate applicability of a particular design support methods with respect to the type and characteristics of a design problem and design problem mathematical model. Design complex engineering systems using advanced design support methods
Lectures
1. Fundamental concepts.
2. Identification of design problem for aircraft structure - design variables, design constraints, design attributes.
3. Formulation of design model - analytical and synthetic module for concept and preliminary and concept design phase and for all substructures.
4. Structure response calculation using FEM.
5. Calculation of reliability and adequacy of structure (feasibility).
6. Modeling of "decision making" process: subjective decision making, fuzzy functions, norms, Pareto preferences
7. Modeling of "decision making" process: objective decision making, objective function, formulations, manipulations and solution strategies for design problem.
8. Methods of non-linear programming with overview of those applicable to aircraft structures: linear programming, quadratic programming, dynamic programming.
9. Methods of non-linear programming with overview of those applicable to aircraft structures: sequential linear programming.
10. Methods for problems with constraints: penalty function methods, methods of optimality criteria.
11. Techniques for multicriterial optimization of structures: Multiobjective decision making (MODM) and Multiatribute decision making (MADM).
12. Examples of usage of optimization methods: methods of optimality criteria and penalty function.
13. Examples of usage of optimization methods: sequential linear programming, techniques for multicriterial optimization.
14. Examples of usage of optimization methods: , techniques for multicriterial optimization.
15. Available software for optimization of structures (MAESTRO, NASTRAN).
Exercises
1. Assignments for seminar work.
2. Formulation of optimization problem for a stiffened panel.
3. Formulation of feasibility criteria.
4. Selection of optimization method. (MAESTRO, DEMAK)
5. Evaluation and discussion of a current seminar work status.
6. Evaluation and discussion of a current seminar work status.
7. Evaluation and discussion of a current seminar work status.
8. Formulation of optimization model
9. Evaluation and discussion of a current seminar work status.
10. Evaluation and discussion of a current seminar work status.
11. Evaluation and discussion of a current seminar work status.
12. Evaluation and discussion of a current seminar work status.
13. Evaluation and discussion of a current seminar work status.
14. Evaluation and discussion of a current seminar work status.
15. Deadline for seminars. Evaluation of seminars.
Compulsory literature:
Damir Vučina. Metode inženjerske. Numeričke optimizacije. S primjerima primjene u. Programskom jeziku C I MATLAB. FESB. Split, 2005

Rao, Singiresu S., Engineering Optimization: Theory and Practice, Third Edition. John Wiley & Sons, Inc., 1996, 903 pp

Prebeg, Pero (2011) Višekriterijsko projektiranje složenih tankostjenih konstrukcija, doktorski rad, Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, Mentor: Žanić, Vedran.

Megson, T.H.G.: Aircraft structures for Engineering Students, Edvard Arnold, 1990

Zanic, V., Methods and concepts for the multi-criteria synthesis of ship structures, (Editorial paper), Ships and Offshore Structures, Special issue on design and analysis of ship structures, Vol. 8, no.3-4, Paper SAOS.503, 2013.
Recommended literature:

Faculty of Mechanical Engineering
and Naval Architecture
Ivana Lučića 5
10002 Zagreb, p.p. 102
Croatia
MB 3276546
OIB 22910368449
PIC 996827485
IBAN HR4723600001101346933
tel: +385 1 6168 222
fax: +385 1 6156 940
University of Zagreb
Ministry of Science and Education