COURSEWORK ASSIGNMENT
Module Title: CAE & Applications | Module Code: 7ENT1131 |
Assignment Title: Finite Element Analysis of a Redbull F1 Wing |
Assignment type: Individual |
Tutor: Behrad Vahedi | Internal Moderator: MC |
AssignmentTutorOnline
Student ID Number ONLY: | Year Code: |
Marks Awarded %: | Marks Awarded after Lateness Penalty applied %: |
Penalties for Late Submissions Late submission of any item of coursework will be capped at a minimum pass mark if received up to one week late. Any submission received more than one week late will be awarded a mark of zero. Late submission of referred coursework will automatically be awarded a mark of zero. Note: The School operates a strict policy on late submission. Canvas/Studynet marks all work submitted late, even by one second, as Late, in which case the above late penalties will be applied. Where genuine serious adverse circumstances apply, you may apply for an extension to the hand-in date, provided the extension is requested a reasonable period in advance of the deadline. However, you are warned that lateness due to network congestion (either at the University or on your local network), difficulty with filenames, poor time management and similar issues will not be considered as admissible circumstances. For this reason, you are advised to submit at least one hour before the deadline. |
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Please refer to your student handbook for details about the grading schemes used by the School when assessing your work. Guidance on assessment will also be given in the Module Guide. |
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Guidance on avoiding academic assessment offences such as plagiarism and collusion is given at this URL: http://www.studynet.herts.ac.uk/ptl/common/LIS.nsf/lis/citing_menu |
If the assignment is laboratory based (though not computer-based), or involves offsite activity, please
attach the risk assessment form for the Internal Moderator to see.
ASSIGNMENT BRIEF
Students, you should delete this section before submitting your work.
This Assignment assesses the following module Learning Outcomes (Take these from the module DMD): Have a knowledge and understanding of the importance of validating software to ensure that results are realistic; Design CAE simulations from a practical engineering problem; Use specialist simulation software to solve typical engineering problems;Design and implement a computer program to solve and validate results obtained from specialist simulation software. |
Assignment Brief: This assignment is focused with the static analysis of an F1 Redbull Front Wing. The students should be able to model and programme simulations in order to obtain results as realistic as possible at low computational expense. The students should also be able to validate the results by checking convergence. It involves the use of a commercial FE (Finite Element) package. CATIA Generative Structural Analysis is suggested. See attached briefing sheet for all the assignment brief details and marking scheme. |
Important notes: • All students must submit their individual report/responds through Canvas/Studynet. |
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Submission Requirements: • You are expected to submit Powerpoint slides capturing the objectives of the assessment in short video presentation of no more than 10 slides and duration of 3 minutes video. Your face has to be shown throughout the video otherwise there will no marks allocated. • You should produce a report with a maximum of 20 A4 pages. See attached briefing sheet for • details on the report. This assignment requires an online submission to Canvas. Reports will be checked for plagiarism. • The report needs to be saved with the following filename; SRN_FEA_Analysis.docx and replace SRN with your individual Student ID number. Your final CAD files as well as Analysis and Computation files must be submitted as well with your SRN_Filename. Please do not include your name so that anonymous marking can be used. |
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Marks awarded for: • The assignment contains required tasks must be reported by all students. • Report must be completed according the instruction provided on Canvas. • The marking scheme has been specified on the template of the report. Please see blow document for detail of the tasks. A note to the Students: 1. For undergraduate modules, a score above 40% represent a pass performance at honours level. 2. For postgraduate modules, a score of 50% or above represents a pass mark. 3. Modules may have several components of assessment and may require a pass in all elements. For further details, please consult the relevant Module Guide or ask the Module Leader. |
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Typical (hours) required by the student(s) to complete the assignment: please refer to Canvas | ||
Date Work handed out: 28//03/22 |
Date Work to be handed in: 05/05/21 |
Target Date for the return of the marked assignment: 4 weeks after the deadline |
Type of Feedback to be given for this assignment: Comments will be given on marked report through Canvas/Studynet. Generic feedback will be given during an online lecture. |
INTRODUCTION
You will use a commercial FE package to perform an analysis on a Redbull F1 Front Wing subjected to
high compression values. It is suggested that you use the Generative Structural Analysis environment
from CATIA V5 and use of a software different than CATIA is unsupported, thus not recommended.
This assignment is based on a real engineering problem and we hope you enjoy it!
MODEL
Figure 1 shows the CATIA 3D CAD model of a loaded component to be studied which can be found as
part of the tutorials.
Figure 1 – CATIA 3D CAD model of the Redbull Front Wing
This part is made from steel and needs to be remodelled in such way that while the overall shape remains
intact certain areas are reinforced to take the maximum load.
AIMS
To reinforce the structure, so that:
1. The maximum displacement measured at any point is smaller than 2 mm with maximum Down- force
based on the CFD analysis of your given speed (e.g.116mph) (this is provided separately) and the initial
downforce is 3000N.
2. The Von Mises Stress is below the tensile strength,
3. The weight is as little as possible (ideally, the weight should be reduced).
4. Apply successfully the correct structural optimisation technique Account for at least 5 design feasibility
constraints.
5. Maximum of 0.5mm of displacement on the bulkhead due to moment coming from the wing.
6. Identify the correct structural optimisation. Need to explain what gains are to be expected from such
optimisation.
7. It is expected to account for a minimum of 5 design feasibility constraints and how these may impact
the choice of their structural optimisation technique
8. The natural frequency of the wing has to be simulated for each material and presented.
OBJECTIVES
The objective of this assignment is to reinforce the structure while the weight is reduced. You are only
allowed to:
1. Change the material 8 times (4 given materials and 4 of your choice) choice of material should be realistic
for the application rather than random.
2. Add fillets to reduce stress concentrations.
The best design should be as lightweight as possible and should not affect the practicality of the Wing, ~10Kg.
You need to identify the original mass and stiffness and work your way through so that you have a meaningful
set of results to discuss about.
REPORT LAYOUT
Only the authors’ numbers (SRN) should be shown.
THE REPORT SHOULD NOT EXCEED A TOTAL OF 20 PAGES.
It must be submitted in a word document. Alternative formats will not be accepted.
You must deliver the CATIA files of your final model by uploading it on Canvas. Failure to do so may result
in no marks being awarded.
Presentation is a very important aspect of your report, mostly because of clarity. Use page numbers,
headings, figure/table captions and numbers (and always refer to them in the text), etc.
Above all, the report should look like a proper professional technical document.
DELIVERABLES, OBJECTIVES AND MARKING SCHEME.
The marking scheme (and, therefore, the recommended layout) is presented below. Always provide
evidence (justification, by means of calculations, print screens1, diagrams, etc).
Print screens of CATIA are recommended to be made using a white background.
Generate the initial model, showing:
a. Element size and Absolute Sag Values
b. Constraints, and exactly where they are applied;
c. Loads, and exactly where they are applied. (Using Sensors)
Check mesh convergence with a number of simulations by changing mesh size and sag value (minimum
of 5)
a. A graph of the maximum displacement vs the number of elements (or mesh size);
b. A graph of the maximum Von Mises Stress vs the number of elements (or mesh size);
c. A clear conclusion about which mesh is the most adequate from your analysis;
d. A picture of the final Von Mises stress distribution, highlighting the most problematic locations;
e. A picture of the final deformation, highlighting the most problematic locations.
Optimise the model by changing material only. The only geometrical changes allowed are using
fillets to replace sharp edges.
a. A picture of the meshed and optimised model, describing the reasons for the different options and
solutions;
b. A picture of the Von Mises stress distribution on the optimised model, highlighting the locations
where visible improvements were found;
c. A picture of the vector deformation along the part on the optimised model, highlighting the occasions
where visible improvements were found;
d. Comment on the Von Mises stress distribution and deformation of the optimised model, comparing
these values to the ones obtained in the original model.
NB: If the only change made is in the thickness without any other visible effort, your model will be
marked with zero marks.
School of Physics, Engineering and Computer Science
Marking Scheme (out of 100)
Introduction – Assignment setup Clarity of assignment and of background to objectives and scope |
15% |
Methodology Selection of appropriate method to define the engineering problem,including justification of why this approach is appropriate |
25% |
Results and analysis Correct application of the taught tools Clear explanation and interpretation of the results |
30% |
Discussion, conclusions and recommendations Richness of discussion: What do the results show / what conclusions can be drawn from them Reflection on the methodology: o How this can be improved? Summarised conclusions and recommendations |
20% |
Overall report presentation Report structure Clarity of technical language and explanation |
10% |
Total | 100% |
NB: Due to the nature of this assignment, it is very unlikely (not to say impossible) that
different groups of students come up with the same solution. Please take this as an advice
on how to avoid being charged for academic misconduct. We take it very seriously, so
please make sure that what you present is your own work.
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