Study-Unit Description

Study-Unit Description


CODE TET3006

 
TITLE Technical Graphics and Design 2

 
UM LEVEL 03 - Years 2, 3, 4 in Modular Undergraduate Course

 
MQF LEVEL 6

 
ECTS CREDITS 4

 
DEPARTMENT Technology and Entrepreneurship Education

 
DESCRIPTION Technologists and designers use technical graphics for three major reasons:
1. to communicate, represent and describe the geometry of components;
2. to study and analyse the interactions between components;
3. to evaluate relevant physical quantities.

This study-unit applies these functions of graphics to solids and surfaces in general and the specific study of mechanisms, the cross-sectional properties of structural elements, involute bevel gears, screwthreads, and the combination of harmonic motions.

Study-Unit Aims:

1. To develop further dexterity skills when using pencil, paper, board and Tee-square to produce graphical analysis or designs;
2. To reaffirm the validity, reliability and utility of graphical methods as effective tools for analysis and design at par with analytical mathematical methods;
3. To present graphical methods for the analysis, evaluation, and quantification of parameters within mechanisms, structural elements, involute bevel gears, screw threads and harmonic motions;
4. To present current international symbolic standards for welding and surface roughness.

Learning Outcomes:

1. Knowledge & Understanding:

By the end of the study-unit the student will be able to:
1. explain the principles of isometric systems and their popular use in exploded drawings;
2. appreciate the need for surface finish specifications on working drawings; show familiarity with the current relevant standard;
3. explain the concepts of relative motion, relative velocity and relative acceleration as applied to mechanisms;
4. explain and distinguish between the various welding symbols; show familiarity with the current relevant standard;
5. describe the function of cylindrical cams;
6. extend the theory of involute spur gears to involute bevel gears;
7. distinguish between the characteristics of buttress and acme screw threads;
8. explain how perpendicular harmonic quantities combine to form Lissajous' figures;
9. describe the techniques of graphical calculus;
10. explain the geometries of convolutes, warped and doubly-curved surfaces;

2. Skills:

By the end of the study-unit the student will be able to:
1. produce exploded isometric views of assemblies;
2. interpret and specify surface texture symbols;
3. draw velocity and acceleration diagrams for mechanisms;
4. employ the current welding symbols standard to specify welding fabrication methods;
5. design cylindrical cams to given performance data;
6. prepare drawings of a bevel gear to given data;
7. produce drawings representing single-start and multi-start buttress and acme threads;
8. combine perpendicular harmonic motions of different amplitudes, frequencies and phases;
9. use graphical calculus to calculate section properties of beams and columns;
10. develop accurately a convolute and prepare approximate patterns for warped and doubly-curved surfaces.

Main Text/s and any supplementary readings:

-HANNAH, J. & STEPHENS, R. 1984. Mechanics of Machines: Elementary Theory and Examples, Butterworth-Heinemann.
- O BROIN, E. 1991. Technical Draughtsmanship, Gill & Macmillan.

 
STUDY-UNIT TYPE Lecture, Independent Study & Tutorial

 
METHOD OF ASSESSMENT
Assessment Component/s Assessment Due Sept. Asst Session Weighting
Portfolio SEM1 Yes 30%
Project SEM1 Yes 70%

 
LECTURER/S Lawrence Farrugia

 

 
The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the description above applies to study-units available during the academic year 2024/5. It may be subject to change in subsequent years.

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