BSc IN MECANICAL ENGINEERING SUBJECT: GRAPHICAL EXPRESSION AND COMPUTER ASSISTED DESIGN TEACHING STAFF: ALBA CABISCOL TEIXIDÓ

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1 BSc IN MECANICAL ENGINEERING SUBJECT: GRAPHICAL EXPRESSION AND COMPUTER ASSISTED DESIGN TEACHING STAFF: ALBA CABISCOL TEIXIDÓ COURSE: 1st CREDITS: 12 TYPE: yearly 1. OBJECTIVES The main objective of this subject is to know and to understand the graphic language. The knowledge of this language will allow the student to develop the spatial conception, to be acquainted with the resources and the necessary techniques to represent usual objects on the engineering field, as well as a tool to be able to exchange graphic information with other technicians. 2. STRUCTURE The subject has a total of 12 credits, which 6 are theory credits and 6 are practical work. 2 credits of the 6 practical part are done at the laboratory and they are aimed to the learning and the application of a CAD program. 3. PROGRAM The program of the subject is structured into the following parts: PART I: Introduction to Graphic Expression PART II: Geometrical drawing PART III: Systems of Representation PART IV: Normalization. Industrial drawing PART V: Computer design PART I: Introduction to Graphic Expression [1.] Introduction to Graphic Expression [2.] Normalisation Basics. Types of drawings [3.] Normalised Formats and Plans Files [4.] Labelling, Lines and Normalised Scales 1

2 BLOC II: Geometrical drawing [5.] Construction of polygonal shapes [6.] Power, Radical Axis and Radical Centre [7.] Tangency and Links PART III: Representation Systems [8.] Basics on Representation Systems [9.] Dihedral system or Monge Method [9.1.] Fonaments del Sistema Dièdric [9.2.] Representation of the Point [9.3.] the Straight Line and the Plane [9.4.] Parallelism e [9.5.] Perpendicularity [9.6.] Determination of Distances [9.7.] Abatiments [9.8.] Plane Changes [9.10.] Rotations PART IV: Normalization. Industrial Drawing [10.] Sketching [11.] Normalised Representation with Orthogonal views [11.1.] Projection Systems [11.2.] Views Selection [12.] Selected Views [12.1.] Sections [12.2.] Ratllats [12.3.] Types of Sections [12.4.] Sections [12.5.] Rotations [13.] Normalised Views [13.1.] Vistes Particulats [13.2.] Auxiliary Views [13.3.] Partial views [13.4.] Local and Detailed Views [14.] Axonometric System [14.1.] System Basics [14.2.] Isometric Perspective [14.3.] Cavalier perspective [15.] Dimensioning [15.1.] Dimensioning Elements [15.2.] Dimensioning General Principles [15.3.] Special Instructions [15.4.] Dimensioning Systems [16.] Convencionalismes de Simplificació [17.] Basic Elements on Mechanical Design: Elements of Union [18.] Technical Notes I: Tolerances 2

3 [19.] Technical Notes II: Superficial States [20.] Industrial Drawing of Mechanical joints i Especejaments [21.] Machinery Elements PART V: Computer Aided Design [22.] Basics of a CAD program [23.] Creation of 2D Basic Elements [24.] 2D Drawing by Computer [25.] Combination and Association of Elements [26.] Computer Assisted Dimensioning [27.] Isometric drawing 4. COURSE MATERIALS AND SOFTWARE Set Square 2 HB and 2H pencils Compass with propelling pencil HB and 2H Rubber Ruler 30/40 cm Paper formats A3 and A4 Graduated circle 5. BIBLIOGRAPHY Basic Félez, J., Martínez, M., Cabanellas, J., y Carretero, A. (1996). Fundamentos de Ingeniería Gráfica. Síntesis, Madrid. Pérez, J. y Palacios, S. (1998). Expresión Gráfica en la Ingeniería. Introducción al Dibujo Industrial. Prentice Hall, Madrid, primera edición. Ramos, B. y García, E. (1999). Dibujo Técnico. AENOR, Madrid. Rodríguez de Abajo, F. (1992). Geometría Descriptiva. Tomo I Sistema Diédrico. Donostiarra, San Sebastián, vigésimocuarta edición. Further AENOR (1999). Dibujo Técnico. Normas básicas. 3

4 AENOR, Madrid, quinta edición. Félez, J. y Martínez, M. (1998). Dibujo Industrial. Síntesis, Madrid, segunda edición. Gonzalo, J. (2001). Dibujo Geométrico. Arquitectura-Ingeniería. Donostiarra, San Sebastián. Leiceaga, X. (1994). Normas Básicas de Dibujo Técnico. AENOR, Madrid, primera edición. Rodríguez de Abajo, F. y Galarraga, R. (1993). Normalización del Dibujo Industrial. Donostiarra, San Sebastián, primera edición. 6. ASSESSMENT This subject has a continued assessment method. It is for this reason that the final mark is obtained having into account the next information. Partial Tests: There are two partial tests, Pi, during the course. One test in the middle of each semester, which will include all the material done during the first half of each semester. Final Exam of the semester (FSi): which includes all the material done during the semester. The mark for each semester i, will be calculated as follows: N_Si = max ( 30%Pi + 70% FSi, FSi) At the end of the course there is the possibility to retake the first semester part through a test, this mark is NR_S1. If you take this test, then the mark for the first semester will be NR_S1, although it could be lower than N_S1. The final mark for the theory and the problems part will be calculated as follows: NN_S1 is: N_TP = 50% NN_S1 + 50% N_S2 N_S1 if NR_S1 has not been done NR_S1 if NR_S1 has not been done Practical Work Mark NPrac: It is obtained from the exercises collection, exercises which will be evaluated by the teacher and from the acquired CAD knowledge during the course. June Exam: 4

5 In June, the final mark NF of the subject is obtained as follows: NF = 75% NTP + 25% NPrac September Exam: In September, there is another final exam which will include all the material we have done during the course. The mark obtained on the final exam will be the final mark of the subject. 5