Engineering - Exam Papers - HL - Project - 2010

150 Marks

Design Brief

1. Introduction
   
   The global standardisation of containers and container handling technology is one of the important innovations of 20^th century freight logistics. Central to this transport environment is the gantry container crane. The gantry container crane generally consists of a supporting gantry structure for a trolley unit. The trolley unit will in turn traverse the working area to locate, raise and lower the container.
   
   Design a model of a gantry container crane to the general specifications outlined :
   
   
   1. The model should have a fixed gantry structure;;
   2. The trolley unit should;
   1. Be incorporated into the fixed gantry structure;
   2. Have the traverse, raise and lower motions controlled by switches..
   
   Special Note : A model container need not be included in the final solution
   
   
2. Presentation of the completed machine should ensure that:
   
   
   1. All main operating features are clearly visible without dismantling.
   2. The longest dimension of the model does not exceed 350mm.
   3. Electric power does not exceed 9 volts.
      
       
3. Design Process (40 marks)
   
   A design folio must be compiled which will detail your:
   
   1. Analysis of the given brief and investigation of possible solutions;
   2. Criteria for selection of your own individual solution and production drawings/plans;
   3. Testing and evaluation of your design solution;
   4. Special instructions, if required, regarding the testing of solution by examiner.
   
   Note: Marks are awarded as shown in the Marking Scheme. Computer-aided design (CAD) should be used where possible.
   
    
4. Design Realisation (110 marks)
   Special Note : Modified toys are not acceptable
   
   Using appropriate materials, make the machine according to your own individual design plans. Computer numerical control (CNC) technology should be used, where possible, to support manufacture. You are required to manufacture and assemble all the parts, subject to the following guidelines:
   
   
   1. Standard components may be used to support the. assembly and interconnection of various pans;
   2. Unnecessary recycling will result in lost marks. Re-cycling will be acceptable only in cases where a complex part cannot readily be made in the school.
   3. Bought-in electronic solutions will result in lost marks;
   4. Adhesives, if used, should be applied sparingly.
      
       
5. Project presentation
   
   Your completed project consisting of the device and design folio, both clearly identified with your examination number, must be available to the visiting examiner.
   
   Marks are awarded for quality of presentation and finished appearance of both the device and folio