First Year The first year design courses include Drawing, where the students learn to develop the 3- D visualisation and communication skills needed for engineering design; Product Design, where they receive an introduction to product evolution and the methods used in the first two phases of the design process (Clarification of the Task and Conceptual Design); and Structural Design, where they learn to apply the fundamentals being taught in the Structural Mechanics and Materials courses to a design project, working in a team to plan, design, manufacture and test to destruction a simple structure. In addition, students are encouraged to attend lectures given by industrial speakers on a wide range of relevant engineering applications. Further details may be found at: Drawing Product design Structural design Engineering Applications Drawing Leader: Dr P.J.G. Long Timing: Seven 2-hour sessions in each of the Michaelmas and Lent Terms, and two 2- hour sessions in the Easter Term. Structure: A short lecture will introduce each of the 16 sessions. AIMS The aim of this course is to enable students to: Understand the role of drawing and CAD in the design process. Make and interpret mechanical drawings. Solve simple geometric problems using graphical techniques. OBJECTIVES As specific objectives, at the end of the course students should be able to: Understand projection theory and its use to make required views of lines and planes. Understand orthographic projections of solid objects. Make third angle projections of engineering objects, using the conventions of BS 308. Make isometric sketches. Make assembly drawings. Use a professional CAD package to create models of engineering components and assemblies. SYLLABUS Projection Theory Projection of points, lines and planes. Perpendicular distance between lines. True and edge views of planes. Mechanical Drawing 3-D visualisation and interpretation. Intersection of simple surfaces. Isometric projection; Sketching. Dimensioning. Orthographic projection. Basic drawing conventions, including sections, to BS 308. Representation of simple components. Representation of assemblies. Introduction to a professional CAD package. REFERENCES Drawing CUED Library shelfmark *B.S.I PP 7308: 1986 ENGINEERING DRAWING PRACTICE FOR SCHOOLS AND COLLEGES Folio AR 67 London, B.S.I. *RHODES, R.S. Statement of the problem; Summary of the design process, with sketches of the various designs considered; A complete set of hand-calculations relating to the final design; (DO NOT WORD-PROCESS CALCULATIONS!). A completed costing sheet (returned at the test session); List of deviations of the structure as built from that as drawn; Test results and observations; Suggested modifications to improve performance; Conclusions. The report should be concise and must be handed in by the stipulated time. (i) The total number of marks available for the structural design course is 42. These will be divided as follows: Marks Available - 42: Completion of Drawings - 12 Construction and Test - 12 Report and Oral Presentation - 18 Barely acceptable work attracts 28 marks, satisfactory work 35 marks, and exceptional work 42 marks. Each individual will be marked on the overall contribution in design, drawing and fabrication that has been made to the Groups structure, as well as on the quality of the individual report. The concept of the design, the accuracy and relevance of the calculations, and the test performance of the structure are also considered. A failure to meet the loading requirements in the test might thus result in only a slight reduction in marks. Marks may be deducted for failing to meet any or all of the three deadlines. Each group will be given a time to attend for discussion of their design. Students failing to attend will be awarded no marks. (j) A number of prizes will be awarded for the best overall individual performances in this exercise. Cambridge University | CUED Last updated: 31 October 2001 Engineering Applications Lectures Part 1A a new engine is expected to cost around one billion pounds. Why is it so expensive? Why do they look the way they do? Many of the most important decisions are taken at an early stage of design using fairly simple procedures, similar to those that can be used in lectures and example classes. The constraints, especially those associated with material properties, need to be known or specified, together with estimates for the likely level of aerodynamic performance. From these the desirable type of engine configuration can be specified, preliminary choices for the main components (compressor and turbine) can be made and a sketch of the engine layout can be drawn. 1. Introduction to Aircraft Propulsion Operating principles, function of components, lift-drag-range relationships, nacelle/wing arrang