ΣΧΕΔΙΑΣΗ ΚΑΙ ΠΑΡΑΓΩΓΗ ΠΡΟΪΟΝΤΩΝ - Master in PRODUCT DESIGN AND MANUFACTURING

Υποχρεωτικά Μαθήματα

Computer  Aided  Design – Σχεδίαση με Χρήση Η/Υ (with Lab)

Theory. Approaches to CAD model development using solids, surfaces, digitization. Basics of Geometric and Solid Modelling, including Bezier, B-Splines, Subdivision Curves and Surfaces. Advanced concepts in Solid Parametric Modeling including relations in Parts and Assembly Modeling. Basic principles of simulation through CAD systems.

Laboratory. Students will be using SIEMENS NX system including Modeling, Shape Studio, Assembly modeling, NX Realize Shape and they will perform individual projects integrating modeling from sketches and from digitized data.

Computer  Aided Engineering – Υπολογιστική Mηχανική (with Lab)

Theoretical part: (equations of equilibrium, energy theorems, variational methods, numerical approximation using finite and boundary elements), linear static and dynamic problems (rods, beams, plates, three-dimensional elasticity, eigenvalues, eigenmodes, numerical integration). Elements of nonlinear analysis (elastoplasticity, contact, geometric nonlinearity)

Exercises using open source software (z88-aurora, code-aster and similar).

Computer Aided Manufacturing – Κατεργασίες  με  τη  βοήθεια  Η/Υ (with  Lab)

Process Planning and Computer Aided Process Planning. Manufacturing process selection and machining order. Machine Tools and cutting tools selection. Optimum selection of cutting conditions in accordance with cutting tool and workpiece material. Use of SIEMENS NX CAD/CAM software for turning and milling where all phases of Computer Aided Process Planning are implemented.

Production Planning and Control - Προγραμματισμός και  Έλεγχος  Παραγωγής

Introduction to the basic problems and principles of production systems. Inventories. Forecasting. Hierarchical production planning. The materials requirements planning approach (MRP I). Basic components of MRP I: (aggregate planning, capacity planning, master production scheduling, bills of materials (BOM), the MRP algorithm, detailed production scheduling). Manufacturing resources planning (MRP II). Lean manufacturing. Enterprise resource planning (ERP).

Μαθήματα Επιλογής

Intelligent Product Design Optimization – Ευφυής  βελτιστος σχεδιασμός  προϊόντων

Introduction to product design, geometry definition using parametric curves and surfaces, basic principles of Optimal Design, introduction to Evolutionary Algorithms (EA), types of EAs, structure and special characteristics of EAs, methods for enhancing the convergence rate (special operators, parallel processing, meta-models), multi-objective EAs for design optimization, Artificial Neural Networks (ANN), EAs combined with ANN in design optimization, Case Studies.

Inventories and Supply Chains - Αποθέματα  και  εφοδιαστικές  αλυσίδες

Introduction to the basic problems and principles of inventory systems. Simple inventory systems. ABC classification. Stochastic inventory systems. Multi-stage inventory systems. Supply chains location and distribution. Lean supply chains.

Industrial Robots – Βιομηχανικά  Ρομπότ (with  Lab)

Introduction to industrial robotics. Robot drive systems. End effectors – grippers. Sensors. Robot kinematics. Programming and control. Material handling robotic systems. Application cases.

Laboratory: Programming in ROS, FANUC, KUKA softwares.

Additive Manufacturing and nontraditional manufacturing processes – Προσθετική Παραγωγή και Μη  συμβατικές κατεργασίες (with Lab)

From Rapid Prototyping to Additive Manufacturing, developments in technologies, materials and machines. The effect of additive manufacturing on product design, Design for Additive Manufacturing.

Applications of Additive Manufacturing, conformal cooling, lattice structures. Use of SIEMENS NX Hybrid Additive Manufacturing. Production of Prototypes using Rapid Prototyping machines (ULTIMAKER). Abrasive jet machining, Water jet machining (WJM), Ultrasonic machining (USM). Abrasive water jet machining (AWJM) - Plasma arc machining (PAM), Laser beam machining (LBM), Electron beam machining (EBM). Electro-discharge machining (EDM). Electrochemical machining (ECM), Chemical machining (ChM), Biochemical machining (BM).

Quality Engineering – Σχεδίαση και Έλεγχος Ποιότητας

Introduction to statistical methods for design, control and improvement of quality. Statistical Process Control. Control Charts, Process capability analysis. Design of Experiments (DOE). Design of experiments with single or multiple factors. Analysis of variance. Robust design and Taguchi's methods. Six sigma approach. Quality assurance systems.

Micromanufacturing – Μικροκατεργασίες (with Lab)

Introduction to microfabrication. Micrometrology and materials characterization. Micromolding, Micromachining, Microgrinding. Diamond microcutting tools. Laser microfabrication. Micro waterjet. Microelectrodischarge machining. Ultrasonic micromachining. Projects on Laser engraving.

Analysis and Design of Production Lines and Networks – Ανάλυση  και  σχεδίαση  γραμμών  και  δικτύων παραγωγής  (with Lab)

Types of production systems, performance measures, related analysis and optimization problems. Introduction to Markov chains and queueing systems. Exact and approximate models for the analysis of queueing networks. Simulation using Arena© and applications. Constrained optimization and applications.

Intelligent/Flexible Manufacturing Systems (FMS) – Ευφυή/Ευέλικτα  Συστήματα  Παραγωγής (with  Lab)

Physical components and control of an FMS. Artificial intelligence tools in manufacturing. Flexibility. Using intelligent methods in manufacturing.

Laboratory: MATLAB/SIMULINK for Intelligent Manufacturing.

Computational Engineering Software – Λογισμικό  Υπολογιστικής  Μηχανικής  (with Lab)

Block 1: Introduction to advanced CAE software ANSA & META. Import of data from CAD, modelling and meshing of parts, linear analysis using finite elements, eigenmodal analysis, elastoplastic analysis, comparison with analytical solutions and simplified models. Selected topics.

1. Linear static analysis using finite elements, eigenmodal analysis, elastoplastic analysis.

2. Nonlinear contact/friction/impact mechanics analysis.

3. Anisotropic elasticity, homogenization and design of composite materials and structures.

4. Inverse and parameter identification problems using optimization and soft computing.

Block 2: This course will introduce the students to the use of computational tools for the solution of practical problems in fluid mechanics and aerodynamics.

The course will make use of commercial CFD software and the students will learn the basic procedures required for the definitions and solution of a CFD problem. The following topics will be covered:

1. Fluid domain geometry definition.

2. Mesh generation (unstructured grids, hybrid grids, inflation layers, variable grid density, etc.).

3. Definition of the fluid properties. Selection of the proper physical model (compressible flow, incompressible flow, isothermal flow, multiphase flow, etc.).

4. Definition of the proper boundary conditions (inflow, outflow, solid wall, slip wall, symmetry surface, periodic conditions, opening, etc.).

5. Definition of the solver’s parameters. Iterative solution. Convergence criteria.

6. Post-processing of the results (contours, diagrams, vector maps, etc.).

7. Sample test cases.

Σεμινάρια

Introduction to Computer Integrated Design & Manufacturing (CAD – CAE – CAM) – Εισαγωγή  στην Υπολογιστικά  Ολοκληρωμένη  Σχεδίαση  &  Παραγωγή

Design and manufacturing. Systems approach to Computer Integrated Design and Manufacturing. The basic elements of Computer Integrated Design and Manufacturing Systems: CAD, CAE, CAM, Robotics, Manufacturing Planning and Control Systems, FMS, Quality Engineering

Ergonomic Products Design and Development – Εργονομικός  Σχεδιασμός  και  Ανάπτυξη  Προϊόντων

Life cycle and product design process. Methods to explore customer needs and create specifications. Organization of design teams for planning and communication with other departments. Creative methods of developing product ideas and evaluation. Detailed design, operation and behavior analysis, use of modeling and simulation. Ergonomic product design criteria. Anthropometric design. Analysis of body stress and safety issues when using products. Risk assessment of production equipment. Interface design of complex products. Criteria for assembly and maintenance.

Economics in Manufacturing – Οικονομικά  της  Παραγωγής

Cost concepts, Cost estimation, Activity-based costing, Depreciation, Financial statements, Break-even point analysis, Cash flows, Interest rates, Time value of money, Investment appraisal criteria, Comparison of investment projects, Replacement projects, Decision making under risk and uncertainty.

Αειφορία Συστημάτων - Sustainability of Systems

Definition of green manufacturing, pollution prevention in the production process, pollution measurement systems, industrial ecology. Sustainability definition, assessment methods, Sustainability Assessment by Fuzzy Evaluation (SAFE model), mathematical approach. Life Cycle Assessment (LCA), product and process redesign.