1 Pertemuan 8 Perenc & Peranc Sambungan Matakuliah: D0472/PERANCANGAN ELEMEN MESIN Tahun: 2005 Versi:

2 Learning Outcomes Pada akhir pertemuan ini, diharapkan mahasiswa akan mampu : Mendesain sambungan yang tepat untuk sebuah kegunaan

3 Outline Materi Design problem Analisys Synthesis Solution Evaluation Case

4 Design Problem State the design problem clearly. Explain how you intend to solve it in general terms. The Problem and Design Brief are sometimes viewed as two different sections of the design process. However, they are very closely related. Before you can can start a design project you must find a ‘problem’ to solve. Sometimes this may be given to you as a question set by the teacher or the Examinations Board and is usually a paragraph of writing. The ‘design brief’ follows the ‘problem’ and states clearly how you intend to solve the design problem.

5 Analisys List as many questions as you can about the project you are attempting. E.g. What materials can I use ? What safety considerations must I keep in mind ? The ANALYSIS is one of the early sections in the design process. It involves listing as many questions as you can think of regarding your project. The questions will vary from project to project but usually the majority of these questions are the same, whatever the project you are attempting.

6 Synthesis Answer the questions in the analysis The ‘Synthesis’ is the section that follows the ‘Analysis’ and is the answers to the questions. Usually it is impossible to answer all the questions until you have nearly completed the the design project. You will find that some questions can only be answered when the research section has been completed. For example, any question on the choice of materials, or the way ergonomics is applied to your project, must be answered after you have researched these important areas.

7 Solution Produce a working drawing of your solution with a parts list. This must have measurements and constructional details. A working drawing is the final ‘constructed’ drawing, produced as part of the design process. It usually consists of a front, side and plan view of the solution. Sometimes there are two views but this depends on the complexity of the solution. Dimensions are added so that any person using the working drawing can manufacture the design. Usually there are at least six dimensions but you can add as many as you feel are required in order for the manufacturer to make your solution.

8 Evaluation Designers evaluate their finished products or prototypes in order to test whether they work well and if the design can be corrected or improved. Whatever you have designed it is important to evaluate your work constantly during the project. Evaluation can take a variety of forms: –General discussion with other pupils, staff and others. Questionnaires / surveys carried out at any time during the project. Your personal views, what you think of existing designs. Most important of all - what do you think of your designs, prototypes and finished products ? Can you think of any other ways of evaluating your work ?

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