关于算法:6009ME-有限元样优化

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Assignment Information

Module Name: Finite Element Analysis and Optimization

Module Code: 6009ME and 6010ME

Assignment Title: Finite Element Analysis and Topology Optimization of a Bicycle Shelter

Assignment Due: 18:00, 30th Nov 2023

Assignment Credit: 10 credits

Word Count (or equivalent): 2500 +/- 10%

Assignment Type: Percentage Grade

Percentage Grade (Applied Core Assessment). You will be provided with an overall grade between 0% and 100%. You have one opportunity to pass the assignment at or above 40%.

Assignment Task

Introduction

The management of Coventry University would like to improve the design of the bicycle shelter beside the engineering and computer building. The intent is to exploit the improved design at several new location on the University’s properties. You have been asked to undertake this task given your expertise in finite element analysis and optimization. You are to design a robust bicycle shelter that can hold the weight of its roof and winds loads that bombard the shelter during the year. However, this must be done with the least amount of material possible to minimize the hazardous impact of the shelter on the environment, thereby promoting sustainable development goals. The supporting features of the shelter are shown in Figure 1 below. Using the itemized information, finite element analysis and topology optimization, attempt the tasks.

Figure 1: Component of a bicycle shelter

Information, Instructions and Tasks

  1. Prepare a detailed plan to model the shelter in Hypermesh. The plan should feature (25 marks)

o A choice of one-, two- or three-dimensional analysis. (5marks)

o Descriptive text and figures on the dimensional measurement of the support beams This can be acquired by taking measurement of the shelter beside the ECB. (7marks)

o Research and select an appropriate material for the support beams, collecting both Young’s Modulus, yield stress and Poisson ratio and justified with appropriate references. (7marks)

o A discussion justifying the choice of boundary condition. (6marks)

  1. Determine the displacement and stress distribution in the top, left and right support subject to the weight of the glass roof, head collision of a bicycle with the support beam connected to the ground and wind loads. Please estimate the weight of the glass by acquiring its density from literature and multiplying this by volume and acceleration due to gravity. The analysis should show: (30marks)

o Modelling and meshing strategy used. (5marks)

o The conversion of the weight of the roof into boundary conditions and the kinds of boundary condition used for the region where the large side support beam connect to the ground. (5marks)

o The stress and displacement results for the support beams (10marks)

o Discussion on the implication of the results (10marks)

  1. Perform a topology optimization on the region occupied by the crossed support beams. Remove these beams and construct a surface to encompass the domain shown in Figure 2. Determine an appropriate thickness using Iterative FEA for the surface that puts the maximum yield stress in the surface well below the yield stress of the materials selected for the work. Then perform topology optimization of the surface. The response to this task must feature (35marks)

o The finite element analysis of the shelter with the surface domain being used to determine the appropriate thickness. (10marks)

o Topology optimization of the surface domain including the effects of pre and post topology optimization parameters on the quality of the solution (25marks)

  1. The structure and organization of the report would also be scored. (10marks)

Figure 2: Topology Optimization Domain

Submission Instructions

You are to submit your response to the assessment on or before the due date. The submission should be in Microsoft Word or pdf format and must be submitted using the assignments tab on Aula, using the Turnitin link titled“CW2: Bicycle Shelter”. If you fail this assessment, you will have an opportunity to make do this course work.

Development of Skills and Attributes

The skills acquired on this task will allow you rigorously elucidate the performance of certain engineering systems. At the core of the report is the development of three main graduate skills, including:

• Communicate Effectively, in written form on engineering design concepts.

• Think creatively, critically assessing an authentic structural problem and exploiting a modern analysis technique to proffer an innovative solution.

• Get things done, by seeing the important of certain engineering and analysis techniques within the context of an authentic situation and exploiting such techniques through logical reasoning, showing initiative, imagination, and pro-activity.

Marking and Feedback

How will my assignment be marked?

Your assignment will be marked by the module.

How will I receive my grades and feedback?

Provisional marks will be released once internally moderated / other (please insert)].

Feedback will be provided by the module team alongside grades release. This would be accessible via Aula in the feedback section.

Your provisional marks and feedback should be available within 3 weeks (15 working days) of submission date.

What will I be marked against?

Details of the marking criteria for this task can be found at the bottom of this assignment brief.

Assessed Module Learning Outcomes

The Learning Outcomes for this module align to the marking criteria which can be found at the end of this brief. Ensure you understand the marking criteria to ensure successful achievement of the assessment task. The following module learning outcomes are assessed in this task:

  1. Apply fundamental knowledge to investigate new and emerging technologies.
  1. Extract, analyse and interpret data pertinent to an unfamiliar problem, and affect its solution using computer-based engineering tools when appropriate.
  1. Analyse and appraise the capabilities of computer-based models for solving problems in engineering, and the ability to assess the limitations of cases.
  1. Review and appraise engineering workshop and laboratory skills.

Assignment Support and Academic Integrity

If you have any questions about this assignment please see the Student Guidance on Coursework for more information.

Spelling, Punctuation, and Grammar:

You are expected to use effective, accurate, and appropriate language within this assessment task.

Academic Integrity:

The work you submit must be your own, or in the case of groupwork, that of your group. All sources of information need to be acknowledged and attributed; therefore, you must provide references for all sources of information and acknowledge any tools used in the production of your work, including Artificial Intelligence (AI). We use detection software and make routine checks for evidence of academic misconduct.

Definitions of academic misconduct, including plagiarism, self-plagiarism, and collusion can be found on the Student Portal. All cases of suspected academic misconduct are referred for investigation, the outcomes of which can have profound consequences to your studies. For more information on academic integrity please visit the Academic and Research Integrity section of the Student Portal.

Support for Students with Disabilities or Additional Needs:

If you have a disability, long-term health condition, specific learning difference, mental health diagnosis or symptoms and have discussed your support needs with health and wellbeing you may be able to access support that will help with your studies.

If you feel you may benefit from additional support, but have not disclosed a disability to the University, or have disclosed but are yet to discuss your support needs it is important to let us know so we can provide the right support for your circumstances. Visit the Student Portal to find out more.

Unable to Submit on Time?

The University wants you to do your best. However, we know that sometimes events happen which mean that you cannot submit your assessment by the deadline or sit a scheduled exam. If you think this might be the case, guidance on understanding what counts as an extenuating circumstance, and how to apply is available on the Student Portal

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