Engineering Design

Course guarantor:

Karel Petr

Lecturer:

Karel Petr

Tutor:

Karel Petr

Supervisor:

Department of Designing and Machine Components

Synopsis:

The aim of the course is to teach students how to express themselves graphically, to improve their spatial imagination, and to explain the basic principles of assembling machine parts and their relationships, i.e., the fundamentals of ISO GPS (Geometrical Product Specification), specifically the tolerancing of linear and angular dimensions, surface texture specification, geometric tolerancing, and dimensional chains. Students will also practice working with technical documentation and sorting information (searching in catalogues and standards). During practical sessions, they will encounter hands on examples of assigned tasks, workshop inspections, and similar activities.

Requirements:

-2 pencils: (a mechanical pencil with HB lead; a clutch pencil with B or 2B lead). An eraser.

-Knowledge of high school mathematics.

-Knowledge from the courses Constructive Geometry (2011018) and Basics of Casting, Forming and Welding (2333041).

-For more details, see: https://moodle-vyuka.cvut.cz/link/course.php?cx=2131031

Syllabus of lectures:

Introduction to modern engineering design in the 21st century. Orthographic projection (ISO E, ISO A); technical drawings (types, scales, formats, line types, folding of drawings).

Basics of technical representation (sections and cut views; interruptions/shortening of component views; sketching, etc.).

Basics of technical dimensioning (main dimensioning principles; dimension, extension and reference lines; dimension notation; dimensioning systems; dimensioning of basic geometric features; representation and dimensioning of standardized elements).

Marking of semi finished products.

Introduction to ISO GPS (Geometrical Product Specifications) ISO 8015. Introduction to creating drawing less documentation. Difference between a size and a distance.

ISO GPS Tolerancing of linear and angular dimensions basic terminology, fits of hubs and shafts, ISO code system, symbols for linear and angular dimensions (ISO 14405 1,2,3).

ISO GPS Geometrical and form tolerancing (ISO 1101) basic rules, geometric tolerances of form, orientation, run out and position.

ISO GPS Datums and datum systems (ISO 5459), maximum and minimum material requirements (ISO 2692).

ISO GPS General tolerances (ISO 22081).

Dimensional chains 1D tolerance analyses, basic terminology, calculation examples.

ISO GPS Indication and tolerancing of surface texture (ISO 21920 1) basic parameters (profile and areal methods).

Dimensioning in technical drawings, parameter calculations, examples.

Representation and dimensioning of threads, bolts, nuts and washers. Screw joints (representation, dimensioning, designation, searching in standards, function, ). Thread tolerancing. Dimensioning and tolerancing of threads; representation of tolerance zones.

Syllabus of tutorials:

Introduction to CAD Autodesk Inventor

TASK No. 1 Sketch of Common Part No. 01 (planar part made from a standardized semi finished product) CAD training

TASK No. 1 Sketch of Common Part No. 02 (rotational part made from a standardized semi finished product) CAD training

TASK No. 1 Sketch of Common Part No. 03 (rotational part with a planar surface /hexagon or square/ made from a standardized semi finished product) CAD training

TASK No. 2 Reverse Engineering (real component) Application of dimensional tolerances

TASK No. 2 Reverse Engineering (real component) Application of surface roughness

TASK No. 2 Reverse Engineering (real component) Application of geometric tolerances

TASK No. 3 Screw joints assemblies

TASK No. 3 Screw joints assemblies

TASK No. 4 Assembly drawing of a gear pair with bill of materials

TASK No. 4 Assembly drawing of a shafthub connection with bill of materials

Course summary examples

Credit / final assessment

Study Objective:

To be able to express oneself graphically within reasonable limits (necessary for all university level technical subjects) as a fundamental communication tool for mechanical engineers. To train spatial imagination. To acquire the knowledge and skills required for follow up courses. To decompose machine parts into basic geometric shapes component analysis. To unify knowledge related to the creation of technical drawings (the philosophy of representation, dimensioning and tolerancing as described within ISO GPS). To establish the core set of elementary knowledge (the starting foundation) for every mechanical engineer, including the basics of CAD. To represent and dimension geometrically diverse components gradually increasing complexity while considering the function of each part.

Study materials:

1.Petr, K. Electronic materials for the subject Engineering Design MOODLE, ČVUT v Praze. Web: https://moodle-vyuka.cvut.cz/link/course.php?cx=2132031

2.Petr, K. STROJÍRENSKÉ KONSTRUOVÁNÍ: tvorba výkresové dokumentace dle ISO norem. 1. vydání. Praha: České vysoké učení technické v Praze, Česká technika-nakladatelství ČVUT, 2023. 173 stran. ISBN 978-80-01-06715-4.

3.Leinveber, J. a Vávra, P. Strojnické tabulky: učebnice pro školy technického zaměření. Šesté vydání. Úvaly: Albra, 2021. xv, 943 stran. ISBN 978-80-7361-124-8. (nebo novější)

Note:

Time-table for winter semester 2025/2026:

Time-table is not available yet

Time-table for summer semester 2025/2026:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon
Tue
Wed
Thu
Fri	room Petr K. 09:00–09:45 (lecture parallel1) room Petr K. 09:45–12:15 (lecture parallel1 parallel nr.101)

The course is a part of the following study plans: