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102AAE Aerospace Professional Skills Dr. Shaheer Zubairi. Contents. Quiz Introduction to the module Learning outcomes Module team Coursework Icebreaker activity Design process. Quiz. Socrative Quiz. Please go to: https://b.socrative.com/login/student/ Room: SHAHEER. Introduction.
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102AAE Aerospace Professional Skills Dr.Shaheer Zubairi
Contents • Quiz • Introduction to the module • Learning outcomes • Module team • Coursework • Icebreaker activity • Design process
Socrative Quiz Please go to: https://b.socrative.com/login/student/ Room: SHAHEER
Introduction to Professional Skills • Links several modules • Complements Personal Tutor sessions • Professional and Employability skills • Competencies • Computer Aided Design
Learning Outcomes On completion of this module, a student should be able to: • Describe the nature of their chosen profession, the technical specialisms and career opportunities within it. • Undertake basic academic research and writing including referencing. Use internet technology for information retrieval and web publishing. • Work effectively as a group and demonstrate an understanding of the importance of good employability skills. • Apply basic design skills to an engineering problem using 3D Computer Aided Design software. • Produce and interpret sketches and formal engineering drawings. • Process a CAD model into a physical product.
Module Team Dr. Shaheer Zubairi Lecturer Aerospace Engineering PhD Aerospace Engineering (QUB) MEng Aerospace Engineering (QUB) Dr. Jonathan Nixon Senior Lecturer Aerospace Engineering PhD (Aston University) Mr. Arpad Kulik Assistant Lecture Aerospace Engineering Bend Aerospace Technology (CU)
Module Organisation • Lectures (1hr x 11) Fridays 1-2pm • Tutorials* (2hr x 11) Thursdays 3-5am Fridays 9-11 am • Self guided (67 hours) Coursework (40 hours) • Total hours = 100 *Please attend YOUR OWN tutorial session. DO NOT swap with someone else.
Coursework • Individual report (2000 words) Links to your online portfolio • % of module mark: 100% • Part 1 Job search CV and cover letter Online learning tools • Part 2 Design an air powered vehicle 3D printing your design Assembly the vehicle Test how far it can travel using an air balloon as a ‘fuel tank’.
Lego Assembly • Each team needs: 1 x Team leader – ONLY person that can see the product 3 x Engineers – ONLY persons allowed to build 2 x Suppliers – ONLY persons allowed to collect parts • Rules: • Team leader instructs suppliers what blocks are needed. • Team leader instructs engineers how to put the object together. • Engineers only allowed to talk to the team leader and each other. • Suppliers only allowed to talk to the team leader and each other. • Engineers and suppliers cannot talk to each other! • Team leader cannot assemble the Lego. • Only 1 part per trip can be collected by the suppliers.
Invention vs. Innovation Invention A device or process originated after study and experiment Innovation A new improvement to an existing device or process Image taken from: http://www.novuslight.com/led-market-phasing-in_N239.html Invention Invention Innovations Innovations Image taken from: http://lexpower.wordpress.com/2010/07/21/chronological-order-show-me-the-timeline/1000px-bicycle_evolution-en-svg/
Design • A good product is a result of a good design. • What is design? Design is about creating – form and function Achieving objectives within given constraints • What is a design process? • A design process is a systematic problem-solving strategy, with criteria and constraints, used to develop many possible solutions to solve or satisfy human needs or wants and to narrow down the possible solutions to one final choice.
Defining problem and goal • Identify and describe the issue and the ultimate objective • Consider: • What do you want to accomplish? • What are the requirements? • Are there any limitations? • Who is the customer?
Engineering Design Process • What is engineering design process? + +
Engineering Design Process • Formulation of a plan or scheme • Decision making process (often iterative) • Optimally using resources to meet objective • Elements of design process: • Establish objectives and criteria • Synthesis • Analysis • Construction • Testing and evaluation
Engineering Design Process • Identifying problems and opportunities • Framing a design brief • Investigation and research • Generating alternative solutions • Choosing a solution • Developmental work • Modelling and prototyping • Testing and evaluating • Redesigning and improving
Engineering Design Process • Identify the need • Define the criteria • Explore/research/investigate • Generate alternate solutions • Choose a solution • Develop the solution • Model/prototype • Test and evaluate • Redesign and improve
Engineering Design Process • Problem Definition (Analysis) • Conceptual Design (Synthesis) • Preliminary Design (Evaluation) • Documentation is crucial! • Design Decision (Decision ) • Detailed Design (Action) Production & Test (Build & Verify)
Managing Engineering Design Process • Documenting design • Formalizes the design process • create using design process • notebook has fewer requirements and alternatives to consider • start on day 1 as a tool to manage design process • Reinforces process learning • crucial record of the process • enhances communication between groups • essential to bring new people up to speed • Helps maintain design idea objectively • use to continually verify compliance • establish test plan against requirements early in process
Problem definition • Clarify design objectives • desired attributes and behaviour • expressed as “being” statements (not “doing”) • Identify constraints • restrictions or limitations on a behaviour, a value, or some other aspect of performance • stated as clearly defined limits • often result of standards & guideline • Establish functions • actions the design must perform • expressed as “doing” statements • typically involve output based on input • Establish requirements • non-negotiable objectives and/or functions Documentation Attributes List: Objectives, Constraints, Functions, and Requirements list
Objectives, Constraints, Req., Function • Some items are absolute – others negotiable • Functionality (inputs, outputs, operating modes) • Physical (size, weight, temperature) • Reliability, durability, security • Power (voltage levels, battery life) • Performance (speed, resolution) • Ease of use • Conformance to applicable standards • Compatibility with existing product(s) • Cost
Preliminary Design • Flesh out leading conceptual designs • scale models – cardboard, straws, paper clips, paper, pencils, white glue, etc. • computer models (CAD) • mathematical models • Model, analyse, test and evaluate conceptual designs • proof-of-concept • simulation results • qualitative and/or quantitative • Documentation • CAD Drawings • Model photos • Simulation and Proof-of-concept information
Design Decision • The “optimal” design solution may or may not be obvious • Select the optimal design based on the findings from the previous stage • evaluate design alternatives against specifications • a “better” technical solution may not make the cut due to differences between design objectives and constraints • Documentation • Trade off criteria • Trade off results • Optimal design decision tool and data
Cost of Design Changes • Design change increases cost and time of production and redesign substantially • Costs increase exponentially as the project lifetime increases • Design changes can be classified into pre production and post production design changes.
Detailed Design • Refine and optimize choices made in preliminary design • document compliance to objectives, constraints, functions, requirements • Fabricate prototype and move toward production • material available to build more than 1 robot • consider test approaches • Articulate specific parts and dimensions • define sub assembly parts and interfaces • Time to go from idea to reality • Documentation • Design choice details • Parts list with dimensions • Prototype photos
Production and Testing • Build sub-assemblies • ensure safety training is available and safety practices are followed • reuse prototype parts • Integrate completed sub-assemblies • may require quick plan development to recover from problems • Test, practice, improve … repeat • ensure test approach verifies specifications compliance • may be wise to have part of the game field • Documentation • Build Directions • Safety training and practices • Test plan and results, and parts of Game field
EDP is iterative, not linear • Problem Definition (Analysis) • Conceptual Design (Synthesis) • Preliminary Design (Evaluation) • Documentation is crucial! • Design Decision (Decision ) • Detailed Design (Action) Production, & Test (Build & Verify)
Conclusion • Module contents • Assessment • Design process • Engineering design process is an iterative cycle • Documentation is an important step in design process • Conceptual design • Preliminary design • Detailed design • Implementation/production • Design lessons/improvements • End-of-life/recycle Video
CATIA Tutorials • 104AAE Moodle page • Lectures and Tutorials • CATIA Tutorial Map • running start - tutorials map rev7.pdf • Absolute Beginners 1 and 2.