I have attached the file
Microsoft Word - BE101 T1 2018 Group_project_V2 BE101 Engineering Mathematics Page | 1 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Assessment Details and Submission Guidelines Trimester T1 2018 Unit Code BE101 Unit Title Engineering Mathematics Assessment Type Group Assessment Title Investigation of practical applications of complex mathematical concepts using MATLAB Purpose of the assessment (with ULO Mapping) The purpose of this assignment is to investigate practical applications of complex mathematical concepts and gain understanding of how mathematics is used in engineering context. At the completion of this unit students are expected to be able to: a. Develop problem‐solving skills in the context of engineering mathematics; b. Have a practical understanding of mathematics in the engineering context; c. Gain experience using an extended range of practical applications of complex mathematical ideas; d. Apply knowledge of basic science and engineering fundamentals to real‐life situations; e. Communicate effectively, not only with engineers but also with the community at large; f. Undertake problem identification, formulation and solutions; g. Solve a broad range of problems in mathematical areas; Weight 100 Marks Total Marks 25% of total assessment for the unit Word limit 2000 words Due Date Lab class week 12, 7 June 2018 Submission Guidelines All work must be submitted on Moodle by the due date. The assignment must be in MS Word format, 1.5 spacing, 11‐pt Calibri (Body) font and 2.5 cm margins on all four sides of your page with appropriate section headings. Reference sources must be cited in the text of the report, and listed appropriately at the end in a reference list using IEEE referencing style. Extension If an extension of time to submit work is required, a Special Consideration Application must be submitted directly on AMS. You must submit this application three working days prior to the due date of the assignment. Further information is available at: http://www.mit.edu.au/about‐mit/institute‐publications/policies‐procedures‐and‐ guidelines/specialconsiderationdeferment Academic Misconduct Academic Misconduct is a serious offence. Depending on the seriousness of the case, penalties can vary from a written warning or zero marks to exclusion from the course or rescinding the degree. Students should make themselves familiar, with the full policy and procedure available at: http://www.mit.edu.au/about‐mit/institute‐publications/policies‐ procedures‐and‐ guidelines/Plagiarism‐Academic‐Misconduct‐Policy‐ Procedure. For further information, please refer to the Academic Integrity Section in your Unit Description. BE101 Engineering Mathematics Page | 2 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Assignment Description You need to form a team of three to complete the project. Team members are expected to equally participate, and collaboratively work towards the completion of the project. This task requires you to research and try to understand the given topic, methods and how MATLAB is used as a problem solving tool. Modern mathematics requires the use of computational tools in order to solve difficult real world problems. Tools are required because often the problems are either too large or not possible to solve analytically, and building physical models is impractical. Using computational tools is additionally often an open ended exercise, where some formal theory is implemented, possibly with the aid of pre‐existing analysis or models. This assignment gives you a chance to investigate into application of complex mathematical concepts and gain hands on experience in how MATLAB is used as a problem solving tool. The Engineering Mathematics Course unit assists you to become familiar with the mathematical skills required to solve engineering related problems. The mathematical skills acquired in this Engineering Mathematics Course unit will provide necessary background to understand the algorithms and methods used in this document. You need to Show how well you have understood the problem and simulations or calculations in this system and explain how MATLAB is used as a problem solving tool . The projects are open ended. As long as your program can perform the assigned tasks, there will be no correct or wrong approaches. Certainly, there will be more acceptable and attractive solutions in comparison with competing solutions. In the event you cannot complete the task, you should turn in whatever you have completed and grade will be based on completed work. Bottom line will be, if we cannot get your program to execute, it will be graded based on what you have completed. In all cases it will be essential that you submit a complete set of files to test your program. It will also be important to give clear instructions of how to run your program. This could be done in various ways. One good way to document how your program executes is to prepare “readme.txt” file. Each team will interactively present their solutions by demonstrating how the code is executed. All members must participate in the presentation and must have a reasonable familiarity with the project, even if they have not been the lead person on that specific topic. BE101 Engineering Mathematics Page | 3 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Antenna Radiation Pattern Calculation Antenna radiation pattern is a graphical representation of the power radiated by antenna relative to direction. Antennae radiate differently in different directions. Usually the power is measured far away from antenna (in the far field) at a fixed distance. Dipole radiation Dipole antenna is a wire antenna. Oscillating current i(t) flowing through the wire gives rise to the electric field Eθ and magnetic field Hϕ. Figure 1 shows vertically oriented dipole antenna. Fig. 1. Dipole antenna with current i giving rise to the electromagnetic field at point Q. Power per unit area at point Q can be found as , | | (2), where η0=377 . Antenna radiation pattern, as shown in figure 2, is a plot of normalised power Sn in polar coordinate system, where , , (3) Fig. 2. Dipole antenna radiation pattern. BE101 Engineering Mathematics Page | 4 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Part A: Short dipole radiation pattern For very short wire (l<), maximum amplitude of the current on the wire is assumed constant ="" , while the current varies in time. electric field at any point in space far away from antenna ="" (r="">>) can be found using formula: (4) where R is distance to the point, θ is angle of observation, e. g. polar coordinates of a point where the field is required, j is imaginary constant, I0 is the maximum amplitude of the current on the wire, l is the length of the dipole, k is a wavenumber and η0 is impedance of free space. Write a program using MATLAB software to calculate electric field of short dipole and plot its radiation pattern: Use radiation frequency of 950 MHz. o Calculate wavelength of radiation =c/f, where c=3*108 m/s is speed of light. o Calculate k=2*/. o Assign η0=377 o Assign observation point to be R=10* from the antenna. o Assign I0= 5 A. o Use l=/50 for very short dipole antenna. Create an array of angles θ from 1 to 360 degrees. o Hint: “a = [0:2:100]” is a one‐dimensional array from 0 to 100 at intervals of 2. 0 is the starting point, 100 is the end point, and 2 is the step size. Calculate electric field using formula (4). Take real part of the complex result for the field Re(Eθ). Use formula (2) to calculate radiated power S for each angle direction θ, normalize the power by dividing all values by maximum power. Plot normalized power Sn versus angle θ using “polar” plot function. Add title to the plot. Save the plot. o Note: “polar” plot function, as well as “sin” and “cos” functions require angle in radians. o Note: Array arithmetic commands require dot in front, e.g. .*, ./, .^2. BE101 Engineering Mathematics Page | 5 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Part B: Short dipole electric field Write a program to plot electric field lines of short dipole antenna from Part A using MATLAB’s “contour” plot. Assume antenna is located at the center of the plot. Assume x and y values are in rectangular coordinates from – 2* to +2*. In the formula (4) for E convert R and θ to rectangular coordinates x and y. Take real part of the complex result for the field. Use “contour” function to plot electric field lines for the radiating antenna. Add title to the plot. Save the plot. Fig. 3. Example plot of electric field lines of dipole antenna. BE101 Engineering Mathematics Page | 6 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Part C : Long dipole radiation pattern For long dipole current varies along the length of dipole as , as shown in figure 4. Fig. 4. Current distributions on long dipole. Total field at point Q (R, θ) is an integral (or sum) of fields created by short lengths dz along the wire, each having different current amplitude. ,where (5) Write a program using MATLAB software to calculate electric field of long dipole and plot its radiation pattern: Use the same radiation frequency, wavelength of radiation , k, η0, I0 and observation point R. Use a different length l for a long dipole antenna, which will be assigned to each group in the classroom. Modify the code from part A to calculate the field and power for each angle within a cycle for different angles θ from 1 to 360 degrees. o Use “for” cycle for θ in MATLAB o Within the cycle, calculate electric field using formula (5). Assume current as Hint: Using help find out how to define a function using @ sign. Hint: Using MATLAB’s built‐in function INTEGRAL find the contributions of each elements of the dipole length to the current at point (R, θ). Integrate from –l/2 to l/2. Save each result E θ for different angle under different index in the array. Take real part of the complex result for the field. Calculate radiated power for each angle direction. Normalize the power by dividing all values by maximum power. Plot normalized power Sn versus angle θ using “polar” plot function. Add title to the plot. Save the plot. BE101 Engineering Mathematics Page | 7 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Submission guidelines: 1. Each team will submit one project report that must be a PDF or word file. Your MATLAB code can be submitted as a text attachment in your project report or as a separate .m file and should contain everything necessary to run the file. 2. Prepare a report summarizing your findings. Your report should include the following: o The cover page must identify student (name and number), teaching staff, and assignment. o Body of the report should include i. Introduction –In this section, you need to give a brief overview and your understanding of the problem discussed in the document and outline of the report. ii. Methods ‐You need to describe your understanding of methods you used for simulations or calculations in MATLAB. Briefly explain the key files and functions in your code. iii. Results and Discussion– Present quantitative and qualitative results of your approach and discuss the findings. To illustrate the results please pick some images and show your results on them. iv. Conclusion – Summarise the findings. v. References ‐ Sources must be cited in the text of the report, and listed appropriately at the end in a reference list. 3. Prepare a PowerPoint presentation for 5‐10 minute presentation. No more than 7‐8 slides. You must present as a group, every member of your group needs to speak. You must have visual aids to support your presentation and you must acknowledge the source of the information you present. The presentation should focus on the Mathematics/MATLAB. 4. The assignment must be submitted in soft (electronic) copy under Moodle. The MATLAB program file and presentation should also be uploaded. The pages of the assignment must be clear on each page. BE101 Engineering Mathematics Page | 8 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Marking criteria: Description of the section Marks Coding Executable MATLAB code A complete set of files to test your program 20 Presentation Marks for the Presentation will be based on the material provided (5 marks), presentation skills (5 marks), and understanding of the material (5 marks). 15 Report Section to be included in the report Description of the section Introduction Brief overview and your understanding of the problem. 10 Methods Describe your understanding of simulations or calculations. Briefly explain the key files and functions in your code. 10 Results Present your results. Part A (10 marks) Part B (10 marks), Part C (10 marks). 30 Discussion Discuss the results. 5 Conclusion Concluding remarks 5 Reference style 5 Poor writing Inadequate structure, careless presentation, or the report is under the word limit ‐30 Plagiarism Type of plagiarism ‐ Copy from other student ‐ Copy from internet source/textbook ‐ Copy from other sources ‐100 Total 100 BE101 Engineering Mathematics Page | 9 Prepared by: Dr. Iryna Khodasevych Moderated By: Dr. Rajan Kadel May, 2018 Marking Rubrics: Grade Mark HD 80%+ D 70%‐79% CR 60%‐69% P 50%‐59% Fail< 50% excellent very good good satisfactory unsatisfactory introduction logic is clear and easy to follow with strong arguments consistency logical and convincing mostly consistent and convincing adequate cohesion and conviction argument is confused and disjointed effort/difficulties/ challenges the presented solution demonstrated an extreme degree of difficulty that would require an expert to implement. all results were obtained using matlab code. the presented solution demonstrated a high degree of difficulty that would be an advance professional to implement. most results were obtained using matlab code. the presented solution demonstrated an average degree of difficulty that would be an average professional to implement. some of the results were obtained using matlab code. the presented solution demonstrated a low degree of difficulty that would be easy to implement. minimal number of the results were obtained using matlab code. the presented solution demonstrated a poor degree of difficulty that would be too easy to implement. no results were obtained using matlab code. explanation/ justification all elements are present and well integrated. components present with good cohesion components present and mostly well integrated most components present lacks structure. demonstration logic is clear and easy to follow with strong arguments consistency logical and convincing mostly consistent logical and convincing adequate cohesion and conviction argument is confused and disjointed reference style clear styles with excellent source of references. clear referencing/ style generally good referencing/ style unclear referencing/ style lacks consistency with many errors presentation proper writing. professionally presented properly written, with some minor deficiencies mostly good, but some structure or presentation problems acceptable presentation poor structure, careless presentation ="" excellent ="" very good="" good="" satisfactory ="" unsatisfactory="" introduction ="" logic is clear ="" and easy to ="" follow with ="" strong ="" arguments ="" consistency ="" logical and ="" convincing ="" mostly consistent ="" and convincing ="" adequate ="" cohesion and ="" conviction ="" argument is ="" confused and ="" disjointed ="" effort/difficulties/ ="" challenges ="" the presented ="" solution ="" demonstrated ="" an extreme ="" degree of ="" difficulty that ="" would require ="" an expert to ="" implement. ="" all results were ="" obtained using ="" matlab code. ="" the presented ="" solution ="" demonstrated a ="" high degree of ="" difficulty that ="" would be an ="" advance ="" professional to ="" implement. most ="" results were ="" obtained using ="" matlab code. ="" the presented ="" solution ="" demonstrated an ="" average degree of ="" difficulty that would ="" be an average ="" professional to ="" implement. ="" some of the results ="" were obtained ="" using matlab code. ="" the presented ="" solution ="" demonstrated a ="" low degree of ="" difficulty that ="" would be easy ="" to implement. ="" minimal ="" number of the ="" results were ="" obtained using ="" matlab code. ="" the presented ="" solution ="" demonstrated a ="" poor degree of ="" difficulty that ="" would be too ="" easy to ="" implement. ="" no results were ="" obtained using ="" matlab code. ="" explanation/ ="" justification ="" all elements ="" are present and ="" well integrated. ="" components ="" present with good ="" cohesion ="" components ="" present and mostly ="" well integrated ="" most ="" components ="" present ="" lacks structure. ="" demonstration ="" logic is clear ="" and easy to ="" follow with ="" strong ="" arguments ="" consistency ="" logical and ="" convincing ="" mostly consistent ="" logical and ="" convincing ="" adequate ="" cohesion and ="" conviction ="" argument is ="" confused and ="" disjointed ="" reference style ="" clear styles ="" with excellent ="" source of ="" references. ="" clear referencing/ ="" style ="" generally good ="" referencing/ style ="" unclear ="" referencing/ ="" style ="" lacks ="" consistency with ="" many errors ="" presentation ="" proper writing. ="" professionally ="" presented ="" properly written, ="" with some minor ="" deficiencies ="" mostly good, but ="" some structure or ="" presentation ="" problems ="" acceptable ="" presentation ="" poor structure, ="" careless =""> 50% excellent very good good satisfactory unsatisfactory introduction logic is clear and easy to follow with strong arguments consistency logical and convincing mostly consistent and convincing adequate cohesion and conviction argument is confused and disjointed effort/difficulties/ challenges the presented solution demonstrated an extreme degree of difficulty that would require an expert to implement. all results were obtained using matlab code. the presented solution demonstrated a high degree of difficulty that would be an advance professional to implement. most results were obtained using matlab code. the presented solution demonstrated an average degree of difficulty that would be an average professional to implement. some of the results were obtained using matlab code. the presented solution demonstrated a low degree of difficulty that would be easy to implement. minimal number of the results were obtained using matlab code. the presented solution demonstrated a poor degree of difficulty that would be too easy to implement. no results were obtained using matlab code. explanation/ justification all elements are present and well integrated. components present with good cohesion components present and mostly well integrated most components present lacks structure. demonstration logic is clear and easy to follow with strong arguments consistency logical and convincing mostly consistent logical and convincing adequate cohesion and conviction argument is confused and disjointed reference style clear styles with excellent source of references. clear referencing/ style generally good referencing/ style unclear referencing/ style lacks consistency with many errors presentation proper writing. professionally presented properly written, with some minor deficiencies mostly good, but some structure or presentation problems acceptable presentation poor structure, careless presentation>), maximum amplitude of the current on the wire >