Aerial Lift Platform Design for Engine Testing Service
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Aerial Lift Platform Design for Engine Testing Service MECH 4860 Ȃ Engineering Design A01 Team #13 Ȃ The ALPS Faculty Advisor Ȃ Kathryn Atamanchuk Submitted: December 2, 2013 Jessica Biggs _______________________________ Genadi Borisov _______________________________ Jared Halpin _______________________________ Cameron Verwey _______________________________ [Company Address] Clent Approval i Genadi Borisov Team 13 ± The ALPS Winnipeg, Manitoba Canada December 2, 2013 Dr. Paul E. Labossiere Mechanical and Manufacturing Engineering Department Room E1-546, EITC Building University of Manitoba Winnipeg, Manitoba Canada R3T 5V6 Dear Dr. Labossiere, Please find enclosed a copy of the final design report from team 13 ± The ALPS. The team consists of Jessica Biggs, Genadi Borisov, Jared Halpin, and Cameron Verwey. The project is a design of an aerial lift platform for engine service for the GLACIER facility in Thompson, Manitoba. In this project we designed, modeled, and made engineering drawings of an aerial lift platform as SHUWKHFOLHQW¶VQHHGV7KLVILQDOUHSRUWGRFXPHQWVWKHFRQVLGHUDWLRQVWDNHQLQWR the design such as the stress analysis that was conducted, and part selection and sizing. Our work in this project fulfills the objectives of this course. Our design meets the major requirements set by our client. We have managed to meet all of the deadlines for our deliverables. We got the opportunity to use our mechanical engineering knowledge to design a product for a real life problem. We developed our engineering design skills as well as our communication skills as a result of this course. Feel free to contact me anytime for any questions you may have on this project. My email address is Sincerely, Genadi Borisov Team Manager Team 13 ± The ALPS ii Contents List of Figures ...................................................................................................................... vi List of Tables ...................................................................................................................... viii Executive Summary..............................................................................................................ix 1 Introduction ................................................................................................................. 1 1.1 Project Stakeholders ......................................................................................................................................... 1 1.2 Problem Statement ............................................................................................................................................ 2 1.3 Project Needs and Specifications ................................................................................................................ 3 1.4 Project Objectives ............................................................................................................................................... 8 1.5 Design Concepts................................................................................................................................................... 8 2 Design Methodology .................................................................................................. 10 2.1 System of Units .................................................................................................................................................. 10 2.2 Material Selection ............................................................................................................................................ 10 2.3 Procurement of Materials ............................................................................................................................ 12 2.4 Tolerances, Fits and Welds ......................................................................................................................... 12 2.5 Stress Analysis ................................................................................................................................................... 12 2.6 Design Drawings............................................................................................................................................... 13 3 Details of the Design .................................................................................................. 14 3.1 Platform ................................................................................................................................................................ 15 3.1.1 Platform Frame ................................................................................................................................................. 16 3.1.1.1 Hollow Structural Sections.....................................................................................................................16 3.1.1.2 Angle Iron Perimeter................................................................................................................................17 3.1.1.3 Stress Considerations ..............................................................................................................................18 3.1.2 Platform Surface ............................................................................................................................................... 19 3.1.2.1 Grating Geometry ......................................................................................................................................20 3.1.2.2 Stress Considerations ..............................................................................................................................20 3.1.2.3 Fabrication and Installation...................................................................................................................21 3.1.3 Guardrails, Gates and Harness Anchors ............................................................................................... 22 3.1.3.1 Drop Down Gates.......................................................................................................................................23 3.1.3.2 Permanent Side Rails and Corner Posts ............................................................................................27 3.1.3.3 Horizontal Lifelines ..................................................................................................................................29 iii 3.1.3.4 Stress Considerations ..............................................................................................................................31 3.1.4 Summary of Lifting Platform...................................................................................................................... 33 3.2 Lifting Scissors .................................................................................................................................................. 34 3.2.1 Scissor Members .............................................................................................................................................. 36 3.2.2 Pivots and Slides ............................................................................................................................................... 39 3.2.3 Stress Considerations .................................................................................................................................... 44 3.2.4 Hydraulics ............................................................................................................................................................ 48 3.2.4.1 Hydraulic Pump and Electric Motor....................................................................................................49 3.2.5 Summary of Lifting Scissors ....................................................................................................................... 50 3.3 Base Frame .......................................................................................................................................................... 50 3.3.1 Structural Frame Components .................................................................................................................. 51 3.3.1.1 Central Frame .............................................................................................................................................52 3.3.1.2 Intermediate Access Platforms .............................................................................................................56 3.3.1.3 Hitch...............................................................................................................................................................57 3.3.2 Steering Components ..................................................................................................................................... 59 3.3.2.1 Wheel Brackets and Spindle Assembly ..............................................................................................59 3.3.2.2 Braking System ..........................................................................................................................................65 3.3.3 Stress Considerations .................................................................................................................................... 65 3.3.4 Base Frame Summary .................................................................................................................................... 67 3.4 Tires and Wheels .............................................................................................................................................