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Use computer-aided design software to produce a design drawing or scheme.

problem 1: A model of a bracket is shown in the figure. The beam material is 2014 Aluminium alloy. It is subjected to a downward vertical force of 14kN applied through a cylindrical pin (not shown) in a hole near its upper end. The bottom of the beam can be fixed either by fixing the end or using two screws with holes drilled at the places indicated.

a) Produce a model of the beam using Solidworks or other suitable CAD software.

b) Analyse the stress applied on the beam due to the applied force for both types of fixtures. Based on the analysis make a suggestion as to what fixture to use. If neither of the fixing methods is sufficient to carry the load suggest a modification to the design with an explanation of why you have suggested it.

Produce screen printouts of your model and stress analysis showing all the details as evidence. CAD files should be ready to submit if required.

1666_model of  the bracket.jpg

Figure: Model of the Bracket. (All dimensions are in Imperial Units)

problem 2: Consider the use of computer-aided design systems in the product design process. Based on this and on your experience in using a 2D design and 3D modelling system, describe its key features. Use exs to demonstrate your familiarity with the software. These should include the feature below.

• Accessing standards
• Parts and material storage and retrieval
• Engineering calculations
• Integrated circuit design
• Circuit and logic simulation-including AC, DC and transient analysis
• Schematic capture

problem 3: Assess the software that you have used in your design modelling. Your evaluation should consider the following and presented in a report.

• Costs associated with the software
• Compatibility with other software and technology used. E.g. CNC machining and rapid prototyping.
• Functional as well as technical capability of the software when used in product design process.

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