Computer Aided Design and Manufacturing (FSI-OPP-A)

Academic year 2020/2021
Supervisor: Ing. Jan Šplíchal, Ph.D.  
Supervising institute: LÚ all courses guaranted by this institute
Teaching language: English
Aims of the course unit:
The course objective is to make students familiar with design methods of aircraft structure using computer systems and with valid rules of the aircraft structure design.
Learning outcomes and competences:
Students acquire skills and knowledge of work at work-stations, they are made familiar with structure design systems using 3D modelling theory. They learn the basics of CATIA V5.
Prerequisites:
Basic knowledge of computer geometry. Basic knowledge of any lower CAD system level (AutoCad, Inventor etc.).
Course contents:
The course is concerned with the following topics: Complex overview of means and methods of computer aided design, manufacturing and production control of aeroplanes. Methods for more efficient design process from first idea through production preparation to creation of drawing documentation or to direct production using NC machines. 3D modelling theory. Theory of modelling of surface and volume objects in CATIA V5 software.
Teaching methods and criteria:
The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical topics presented in lectures.
Assesment methods and criteria linked to learning outcomes:
Graded course-unit requirements: a project must be submitted in a prescribed form and handed in by the deadline, The project assessment is done individually and in accordance with FME BUT rules.
Controlled participation in lessons:
Lectures and exercises are compulsory, and the attendance (80% at the minimum) is controlled and recorded. The absence (in justifiable cases) can be compensated by personal consultation with the lecturer.
Type of course unit:
    Lecture  13 × 1 hrs. optionally                  
    Computer-assisted exercise  13 × 3 hrs. compulsory                  
Course curriculum:
    Lecture 1. Introduction to CAD/CAM methods in design and manufacturing of aeroplanes. Introduction to direct design of basic geometry in a model space.
2. Sketcher, settings of sketcher, grid and main tools. Design of solids (part bodies) derived from sketch, extruded solids, pockets, shaft parts, etc.
3. Generative drafting. Defining a drawing sheet, inserting of views, dimensioning.
4. Part bodies derived from surfaces. Transform operation (translation, rotation, symmetry, scaling).
5. Modeling of surfaces, basic operation (fill, multi-section surface, extrude, etc.). Special surfaces (sphere, cylinder).
6. Advanced surface operation (split, trim, join). Analysis of curves and surfaces. Surface smoothness and continuity analyses, design of boundary condition.
7. Design of thin-walled aircraft structures from shell models of aircraft structural parts.
8. Assembly definition, types of connection of structural parts and subassemblies. Inserting of existing component, relocation and constrains.
9. Design of kinematic mechanisms, utilization, boundary conditions and connection of particular structural parts.
10. Analyses of designed curves and surfaces. Surface continuity and connection analyses.
11. Design of surface models and thin-walled structures with utilization of special tools developed for aircraft industry.
12. Introduction to computer aided manufacturing and simulation of structural part machining.
13. Introduction to object programming and utilization to computer aided design.
    Computer-assisted exercise 1. Introduction to CAD/CAM methods in design and manufacturing of aeroplanes. Introduction to CAD software CATIA V5.
2. Initial sketch practice and design of basic solid parts from sketch.
3. Generative drafting, drawing definition and dimensioning. Basic structural finite element analysis in CATIA V5 software.
4. Modeling of surface objects. Definition of basic geometry of trapezoidal aerodynamically and geometrically twisted wing and aileron geometry.
5. Design of fuselage surface model according to aircraft sketch in Freestyle module of CATIA V5 software.
6. Surface reference model definition of fuselage and wing tip cover.
7. Design of thin-walled aircraft structures. Surface reference model definition of horizontal tail unit.
8. Assembly definition of previously created wing, aileron and flap models. Installation of pilot figurine into aircraft assembly.
9. Design of kinematic mechanism of aileron rod control mechanism in created aircraft assembly.
10. Solution of kinematics of differential ailerons in Kinematics module of CATIA V5 software.
11. Design of surface models and thin-walled structures with utilization of special tools developed for aircraft industry.
12. Computer aided manufacturing simulation and code design of wing ribs NC machining.
13. Introduction to object programming and connection of Python and CATIA V5 software.
Literature - fundamental:
1. Jan Roskam: Airplane design, , 0
Literature - recommended:
1. elektronický manuál: CATIA V5, , 0
The study programmes with the given course:
Programme Study form Branch Spec. Final classification   Course-unit credits     Obligation     Level     Year     Semester  
N-AST-A full-time study --- no specialisation -- GCr 4 Compulsory 2 1 W