Assignment Brief – BTEC (RQF)
Pearson BTEC Level 5 Higher National Diploma in Engineering (Mechanical Engineering)
| Student Name /ID Number | |
| Unit Number and Title | Unit 37– Virtual Engineering |
| Academic Year | 2021-2022 |
| Unit Assessor | Mahdi H.Marashi |
| Assignment Title | 1/2- FEA and FEM: Apply Finite Element Analysis (FEA) for engineering products and explore the capabilities and limitations of computer-based modelling. |
| Issue Date | 13/01/2022 |
| Submission Date | 15/02/2022 |
| IV Name | Zeenat Pir |
| Date | 14/11/2021 |
| Submission Format: |
| The submission is in the form of an MS Word document, where you provide the responses to the problems provided. It is essential that any texts, diagrams, pictures, information copied from books, journals, publications, Internet, etc., is referenced properly using the Harvard Referencing System. The work should go through Turnitin before submission. |
| Unit Learning Outcomes: |
| LO 1: Explore the capabilities and limitations of computer-based models in meeting design fundamentals and their use in solving problems in engineering. LO 2: Analyse finite element product and system models in order to find and solve potential structural or performance issues. |
| Scenario |
| You are working as a member of a virtual engineering department in XYZ Engineering Corporation. The XYZ is working in multiple disciplines and engineering sectors (e.g. mechanical, design in oil and gas, aerospace, and civil engineering) to maximise the performance of products whether the prototype with high-tech or a day to day product. It is crucial you meet the clients’ requirements via applying computer-based models, computational fluid dynamics, and stress-strain analysis of the prototypes prior a mass production. It is your duties to prepare a technical report to optimise initial designs with appropriate recommendations to solve engineering problems and ensure they are working within the performance criteria using finite element method, virtual engineering, and computational simulation. |
| Assignment Brief and Guidance: |
| Task 1 You are required to undertake a preliminary assessment of a shallow water wellhead (Fig. 1) called Jacket structure) using practical knowledge and computer-based model to design the various models of the given product. You should be able to critically evaluate and provide supported recommendations for the application of computer-based models to an industrial environment that would improve efficiency and Problem-solving. To complete this task, it is required to accomplish following activities Simplify the given wellhead using any commercial software package. List all your assumptions which applied to simplify the model including selected materials, types of mates were applied to assemble the parts, coordinates system, and method of creating custom beam profile etc. Consider design specification to create your final model.Discuss the benefits and drawbacks (pitfalls) of your final computer base modelsEvaluate the capabilities and limitations of computer-based models Evaluate the processes and applications used in solving problems in engineering Table 1. Design specification Total mass ≤ 25 (ton) Total mass includes baseline, baseplate and upper wellhead equipment Mass of upper wellhead equipment 2.5 (ton) Footprint of the base of the frame in seabed is a square. 11 x 11 (m) Baseplate Size ≥ 8 x 8 x 0.045 (m) Baseline (height of tower) H= Last digit of ID No x (3/2) (m). Result must round up to the nearest whole number. If you have any common number, add the pervious digit of ID number to your final result. Three equal sections from seabed to baseplate Profile of vertical beam Cross section R=0.4 x t=0.0254 (m) Profile of horizontal beam Cross section R=0.3 x t=0.0254 (m) It is necessary to study elastic-plastic deformation of the baseplate of shallow wellhead against the mass of upper equipment. The Main Upper Wellhead Machinery (MUWH) locates centrally on baseplate with a mass of 2.5 tons. To complete the task, considering different applications of the computer-based model and determine the maximum deformation of baseplate in X, Y and Z axis where the Z-axis is parallel the vertical beam and Y-axis is alongside of the horizontal beam. If the MUHW distributed over a circular area of radius, RWH = 3.5 (m) uniformly. If the MUHW applied as a point load at the centre of the baseplate. Furthermore, apply the appropriate computer-based model processes to decrease the Z-axis deformation (i.e. deflection) of baseplate less than 15% of the original design while the total mass of wellhead is not increased more than (10%). Select the best configuration of the application and process and critically evaluates how the application of computer-based models to an industrial environment that would improve efficiency and Problem-solving by reducing the deflection and optimising the cost efficiency of shallow wellhead. Provide the adequate information, evidence, and calculation to support your recommendations. Task 2 For a range of practical examples demonstrated in figure 2 (a) and (b), provide supported and justified recommendations for recognising and solving potential structural or performance-based issues, using finite element product and systems models. Preliminary, it is required to analyse the role of finite element analysis in modelling products and systems (For the loading and boundary conditions see appendix A and B). To complete the task, it is required to critically analyse the finite element product and systems models (see figure 2 (a) and (b)) that help to find and solve potential performance or structural issues for a range of practical examples. In addition, review a range of practical examples to solve potential structural or performance-based issues using finite element product and systems models (For the loading and boundary conditions see appendix A and B). Appendix A – System 1 and its products Considering the jacket offshore system (system 1) from the previous task and applying the following boundary conditions to analyse the role of finite element (FEA) to determine the von-Mises stress, bending moment stress and deflection of the vertical & horizontal beams and baseline as the parts of the jacket system. The fixation of the vertical beam (as pillars) to the seabed without translations and rotations in 3D.The baseplate is subjected under 2.5 tonnes in a radius of 3.5 (m) uniformly because of the upper wellhead equipment.The baseline is under depth of water up to 50% of the height with the wave loading (as uniform distribution load) for two vertical beams and horizontal beam with magnitude of 30 (KN/M) as shown in figure 2.Define material properties according to the following table Table1: Material properties applied for the jacket structure and piston Density Young’s Modulus Yield Stress Poisson’s ratio 7800 (Kg/M3) 200×103 (MPa) 275 (MPa) 0.3 Appendix B – System 2 and its products For the piston system, the maximum explosive pressure is 6.00 MPa, and it acts uniformly on the piston head. The three freedom degrees of the piston pin is restrained to let the piston in a static condition. • Defined boundary condition according to the static equilibrium or motion analysis (Using journal papers and research specification to prove the reliability of the applied data) • Applying the FEA software package to determine the maximum principal stress, Von misses the stress to critically analyse the given piston system and its products. • Determine the potential structural issues in product with respect to analyse the displacement and von-Mises stress. • Critically analyse the obtained results and propose the appropriate solutions to eliminate or reduce the structural issues. • Provide adequate supports for your proposition and recommendations in the previous task and justify how your recommendation addressed the structural issues. • Using the same material for all parts and components of the system according to defined properties in table 1. • Apply the mesh characteristics according to the given parameters in table 2. Table 2: Mesh parameters Jacobian points 16 points Element size 0.00231493 m Tolerance 0.000115746 m Mesh quality High Total nodes >75000 Total elements > 48000 |
| Learning Outcomes and Assessment Criteria | |||
| Learning Outcome | Pass | Merit | Distinction |
| LO1 Explore the capabilities and limitations of computer based models in meeting design fundamentals and their use in solving problems in engineering | P1 Discuss the benefits and pitfalls of computer based models used within an industrial environment to solve problems in engineering | M1 Evaluate the capabilities and limitations of computer-based models. M2 Evaluate the processes and applications used in solving problems in engineering | D1 Critically evaluate and provide supported recommendations for the application of computer-based models to an industrial environment that would improve efficiency and Problem-solving. |
| M2 Evaluate the processes and applications used in solving problems in engineering. | |||
| LO2 Analyse finite element product and system models in order to find and solve potential structural or performance issues. | P2 Analyse the role of finite element analysis in modelling products and systems P3 Review a range of practical examples to solve potential structural or performance-based issues using finite element product and systems models | M3 Critically analyse the finite element product and systems models that help to find and solve potential performance or structural issues for a range of practical examples. | D2 For a range of practical examples, provide supported and justified recommendations for recognising and solving potential structural or performance-based issues, using finite element product and systems models. |
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Student Assessment Submission and Declaration
When submitting evidence for assessment, each student must sign a declaration confirming that the work is their own.
| Student name: | Assessor name: M.Marashi | ||
| Issue date: | Submission date: | Submitted on: | |
| Programme: BTEC (RQF) Pearson BTEC Level 5 Higher National Diploma in Engineering (Mechanical Engineering) | |||
| Unit 37– Virtual Engineering | |||
| Assignment number and title: 1/2- FEA and FEM: Apply Finite Element Analysis (FEA) for engineering products and explore the capabilities and limitations of computer-based modelling. | |||
Plagiarism
Plagiarism is a particular form of cheating. Plagiarism must be avoided at all costs and students who break the rules, however innocently, may be penalised. It is your responsibility to ensure that you understand correct referencing practices. As a university level student, you are expected to use appropriate references throughout and keep carefully detailed notes of all your sources of materials for material you have used in your work, including any material downloaded from the Internet. Please consult the relevant unit lecturer or your course tutor if you need any further advice.
Student Declaration
| Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice. Student signature: Date: |
Student Assessment Resubmission and Declaration
| Student name: | Assessor name: M.Marashi |
| Resubmission date: | Resubmitted on: |
| Programme: BTEC (RQF) Pearson BTEC Level 5 Higher National Diploma in Engineering (Mechanical Engineering) | |
| Unit 37– Virtual Engineering | |
| Assignment number and title: 1/2- FEA and FEM: Apply Finite Element Analysis (FEA) for engineering products and explore the capabilities and limitations of computer-based modelling. |
Plagiarism
Plagiarism is a particular form of cheating. Plagiarism must be avoided at all costs and students who break the rules, however innocently, may be penalised. It is your responsibility to ensure that you understand correct referencing practices. As a university level student, you are expected to use appropriate references throughout and keep carefully detailed notes of all your sources of materials for material you have used in your work, including any material downloaded from the Internet. Please consult the relevant unit lecturer or your course tutor if you need any further advice.
Student Declaration
| Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice. Student signature: Date: |
Higher Nationals – Formative Assignment Feedback Form
| Student Name/ID | ||||
| Unit Title | Unit 37– Virtual Engineering | |||
| Assignment Number | 1/2 | Assessor | Mahdi H.Marashi | |
| Assessor Feedback: | ||||
| Assessor Signature: | Date: | |||
| Students Comments: | ||||
| Students Signature: | Date: | |||
Higher Nationals – Summative Assignment Feedback Form
| Pearson Education 2016 Higher Education Qualifications Internal Verification of Assignment Brief |
| Student Name/ID | |||
| Unit Title | Unit 37– Virtual Engineering | ||
| Assignment Number | 1/2 | Assessor | Mahdi |
| Submission Date | Date Received 1st submission | ||
| Assessor Feedback: | |||
| Grade: | Assessor Signature: | Date: | |
| Resubmission Feedback: | |||
| Grade: | Assessor Signature: | Date: | |
| Internal Verifier’s Comments: | |||
| Signature & Date: |
* Please, note that grade decisions are provisional. They are only confirmed once internal and external moderation has taken place and grades decisions have been agreed at the assessment board.
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