Capstone Design ME 4182
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This 0 page Class Notes was uploaded by Chloe Reilly on Monday November 2, 2015. The Class Notes belongs to ME 4182 at Georgia Institute of Technology - Main Campus taught by Staff in Fall. Since its upload, it has received 8 views. For similar materials see /class/234252/me-4182-georgia-institute-of-technology-main-campus in Mechanical Engineering at Georgia Institute of Technology - Main Campus.
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Date Created: 11/02/15
Week Nine Report Team LiftMyRide NNNNNNNNNNNNNNNNNNNNNNNNNNN Engineering Analysis Update amp Part Drawings NNNNNNNNNNNNNNNNNNNNNNNNNNN Team Members Parag Gaj arawala Maria Jenkins James Holland Chris Madsen Matt Hunt Matt Madsen Overview 0 Pre Prototype Design 9 Engineering Analysis Update 0 Part Drawings 9 Website a Current Plan of Action lgn m a Q a 91 gtgt H O H O s 9r a a 94 H J 0 Modi cation UShaped Plate horizontal and vertical sides will be welded onto top base of scissor jack with primary bolt drilled in 3 Bending Moment at one vert1cal s1de of plate Pad Weld Line y 39 l l quot r p a quotL quot l t H 39 r 3 39 a x 1 V l AK 1 ll l l H x 1 39 I 4 Shear Force on Pad Weld Line 39 5 a7 I 739 I x 39 V 7 V l 3 quot I u v L l r v V l r l g 1 V gt E w I r w 4 t g A j A l H l h 9 a I x k f 39 J l 39L t l x gt R v I 1 u 9 quot r39 ul 3 a A V 39 7 39 quot gt5 l n V H 2 Bending Moment on Primary Bolt E in A Bending Moment on Rotating Arm l rlLuigi ee ing Update Yie1d Strenth 52500 psi Dimensiens Diameter Factor 01 Lead 1bs 11121 N Lead Canditien endin Aetna1endin Stress 763953 si Faii Mediiieatien Chane 01t Diameter t 125 endin 39114 psi Lgi ea in Update Yt lld Strength 572500 Wilde by L011 0f Safety LQad 12501 5561 N LOad C Qndiitijgn endm Actual antitiinw Stress 60000 Fail Madificattgn De Siln Arm Width 0f Part Drawings Base and Shaft Part Drawings Base and Shaft Side View Part Drawings Base and Shaft Top View Part Drawings Arm Part Drawings Arm Front View Part Drawings Arm Side View Part Drawings Locking Collar Part Drawings Collar Top View Part Drawings Collar Front View Layout Drawings Bolt Part Drawings Bolt Side View Team LiftMyRide s Website httpwwwprismgatechedugtg591h1ifth0mehtml Lift My Ride The Scooper Team LiftMyRide s Current Plan of Action Prototype Construction 0 Headed by James Holland Prototype Review 0 Completed by Parag Gajarawala Continue Website Maintenance 0 Headed by Marie Jenkins Media PicturesVideo of Progress 0 Headed by Parag Gajarawala Final Report and Presentation 0 Headed by Chris Madsen Posterboard Display 0 Headed by Marie Jenkins Engineering Analysis Mr Tee Dave Fernandes Chet Gutwein Greg Mallegol Brett Perryman Kevin Scarborough Chris Weir Agenda Engineering Analysis Weight of system Free body diagram Force Analysis Up position Down position Ball Rocker Component Selection Future Work Weights of Rods and Bars Rod Length of Bar 48 Diameter of Rod 05 Volume of Both Bars 215O148 144 in3 236 X 10394 m3 Volume of 5 Rods 52539TD24 230 x 105 m3 D ensity of 2024 Aluminum 2770 kgm3 Weight of Both Bars 00002362770981 6491 N 1459 lb Weight of 5 Rods 000002302770981 0599 N 0134 lb Weights of Ball and Tee Inner Diameter of Tee Do 145 Outer Diameter of Tee D 175 Height of Tee h 2 Volume of Tee 0000054 m3 Density of HDPE 956 kgm3 Weight of Tee 0000054956981 0508 N 114 lb Weight of Ball 0451 N 101 lb from reference Weight of Plunger Diameter of Plunger 175 Height of Plunger 415 Volume of Plunger 56 x10395 m3 Density of HDPE 956 kgm3 Weight of Plunger 1534 N 0345 lb Free Body Diagram 48 Ball and Tee Block Force from Spring 1 FM Force from Spring 2 Fk2 Foroe at pivot in ydireotion FY Force at Pivot in xdirection FX nput Force FIN Weight of Bali and Tee Block 0451 0508 0959 N WBT Weight of rods with support bars 6413 0599 7012 N WRB Weight of Plunger 15341 N WP Force Balance in UpPosition FIN Fk2o IY lt 0454 m lt 0605 m 121 m 7 Equations i Sum of Force in Xdirection 0 FX T Sum of Force in Ydirection o FK1 WP wRB wBT FY 0 Sum of Moments 0 FK10303 WP0454 WRB0605 WBT121 Solution for Force Balance in UpPosition 2 Equations and 2 unknowns FK1 amp FY O IK1WPWRBWBT FY FK1 15341 7012 0959 FY FK1 95051 FY 0 0 FK10303 WP0454 WRB0605 WBT121 FK10303 153410454 7012O605 0959121 FK10303 609913 0 609913 0303 FK1 201291 N FY 10624 N Summary FK1 201291 N 452 lb FY 10624 N 239 lb Force Balance in Lowest Position 0454n1 0605rn L21rn 1 Equa ons Sum of Force in Xdirection O FX 0 Sum of Moments 0 FK1O303 WPO454 WRBO605 WBT121 FK2121 FN454 Solution for Force Balance in Lowest Position 2 Equations and 2 unknowns FIN amp FY O IK1 FK2WPWRBWBT FIN FY 792484 00254 45 1534 7012 0959 FIN FY FIN7551FY0 O FK1O303 WPO454 WRBO605 WBT121 FK2121 FIN454 8052O303 15341O454 7012O605 O959121 45121 FN454 FN0454 2374 0 2374 0454 FIN 5223 N FY 2328 N Summary FIN 5223 N 1169 lb FY 2328 N 523 lb Damper and Spring Location a 1 8 F Ball and Tee Block all F Pivot Point 12 Spring Distance 15 12 Tee Distance 6 12 Damper Distance 1 Clearance between bottom of tee and Damper 5 Main Spring overall travel 3 with initial pretension of 5 to keep rod assembly in top position Rocker Spring over designed to allow play Finding Spring Constant in Spring 1 Force of 20129 N 4525 lb in the spring and the spring is tensioned to 05 0127 m F K X 201291 K 0127 K 158497 Nm 905 lbin The minimum K value This might be too high and maybe multiple springs should be used Initial Component Selection Main Spring Type Extension Springs Material ZincPlated quot Steel Music Wire Ends Crossover Loop Ends Overall Length 4 Outside Diameter 38 Wire Diameter 048 Load 1382 lbs Deflection at Load 4 I Rate297lbsinch quot lnitial Tension 163 lbs Ball Dispenser Spring Constant Tubing Angle 3 Mass of One Golf Ball 00459 kg Number of Golf Balls 150 Total Mass of Golf Balls 6885 kg Spring Travel 05quot Force on Spring FK2 44 N 101 lb k FX k88 Nm o o o o o o o o o o o Initial Component Selection Rocker Spring Type Compression Springs Material Type 302 Stainless S teel 33 hi um Outside Diameter 38 Meowm 39 Wire Size 035 L 1 quot4 Overall Length 114 5 E Ends Closed Wire Type Round Wire Load 177 lbs Deflection at Load 39 Rate 454 lbsinch Compressed Length 86quot Initial Component Selection Damper Damper units in mm Length of movement Base 5 Speed desired 4 insec tee 1 insec damper Force approximately of input force 5223 N W 53 FOR REFERENCE ONLY PLEASE CONTACT TVl DELFRO FDR LATEST PRINT i METRIC N dampermax Calculation of Equivalent Damping Max Damping Force occurs at beginning of return stroke FN52N damper Beq Vdamper Vtee 4 insec V damper 23 insec Beq 3070 Nsm The ATeam Rohan Bansal Henry Bradford Michael Ragins David Ward Shawn Wick Ryan Willingham Top Tier Ideas Wire Wrapper Neatly wraps different types of wires around a spool Portable Air Gun Loosen bolts on a car wheel for changing tires using pressurized air Children s ShoeLace Ratchet Increases the overall snug fit of the shoe after the knot has been tied Bid 1 CollapseAChair Problem Efficient chair storage shipping inventory inactive placement Folding legs with ratchet style for customized length and swiveled collapsible back support stored as a small rectangular prism Maintains cleanliness of seating surfaces through the folded back support Mechanical component folding mechanisms on back support bars ratchets for legs with additional folding mechanisms Bid 2 Sporting Tarp Problem Excessive manual force and time required to cover sports field surfaces during bad weather Pulley system to cover sports field in time and work efficient manner Ropes wrapped around one of the pulleys attached to the tarps on the opposite side of the field Mechanical Component pulley system Bid 3 Flour Dispenser Problem Dough sticking to die in pastry cutting machinery Device that sifts flour onto the dough before it reaches the die Laborreduc on Mechanical component motor and gearbox or pulleys or springs Bid 4 Sink Redesign Problem Clutter inconvenience and bacterial contamination associated with kitchen sink utensils Combine components such as soap dispenser water controls and sponge hanger Operate controls using foot pump to maximize sanitation and multitasking Sleek modern design marketed for upscale kHchens Mechanical component pump Bid 5 Lake Water Hand Pump Problem Lack of sufficient way to clean hands and body before entering the lake house from playing on the lake Use pump and hose system to supply lake water for cleaning purposes Specific application to Matt s grandmother s lake house Mechanical Component pump lever proper amount of water in effective direction Mechanical component continuous pump cu desi gned to deliver Effi ing occurs ent pump very to grind nefficient and splash deli er IS Problem Water ned Glass Water Delivery Stai Bid 6 Bid 7 Tire Collector Problem Dangerous tire scrapsdebris on roadways Device that attaches onto police or highway department vehicle When undeployed device is either unnoticeable or appears to be part of a protective device for the vehicle such as a brush guard or skid plate When deployed device can either push debris by simply having limited clearance above the highway or can pinch the debris and carry it off the highway Mechanical components levers pulleys Bid 8 Pool Floor Mat Problem Excessive time needed for sun to heat pool Black mat on a track system that can be deployed into pool when not in use to increase absorption of solar radiation then retracted Mechanical component thermal advantage ratchet pulleys Bid 9 Car Collector Problem When towing or repossessing vehicles front andor rear wheels are often locked Device with wheels that can straddle the outside of a vehicle Can be placed under a vehicle and attached to frame Jacks on device redistribute weight from cars wheels to devices wheels Mechanical Component lever similar to Segway Team Ramrod Design Ideas Revisited Tight Space for Removing Bolt Problem There is a bolt that needs removal or installation Even though a wrench will physically fit on the bolt there is barely enough room to swing the bolt around the socket axis Solution 1 UJoint Twist Handle Cont How it works The handle is locked to prevent handle from rotating about its axis while wrench is swung conventionally to break bolt connec on Once friction is broken the handle is unlocked and twisting handle around its axis translates to rotation of the socket head UJoint Handle Cont Pros Rotational reaction moment from bolt when breaking connection is not translated into handle Bolt is rotated with a 11 ratio when twisting the handle Strong UJoint connection UJoint Handle Cont Cons Twisting the handle to remove or tighten the bolt can only be done in one respective direction 11 turning ratio provides no torque multiplication Solution 2 Ratcheting Box End Elbow Box End Wrench Elbow How it works Often there is room for lateral movement in a location near but not in line with a bolt The Box End Wrench Elbow design allows for the bolt to be turned using a previously inaccessible angle to the bolt for example around an exhaust header on an engine Box End Wrench Elbow Cont Pros Bolt can be tightened or loosened from a location not in the line of sight of the bolt Bolts can be accessed from a much more convenient angle Cons The handle of the wrench and the head of the bolt must be in the same plane Solution 3 Squeeze Grip Handle Squeeze Grip Handle How it works The squeeze grip handle wrench allows for a socket to be placed on a bolt using the same alignment as a conventional wrench but it is a squeezing motion rather than a swinging motion that tightens or loosens the bolt Squeeze Handle Wrench Pros The socket can be placed on the bolt in the same orientation of a normal socket wrench The squeezeaction wrench allows for rotation of the bolt without swinging the wrench Cons High level of repetition The bolt torque load must be mild to moderate High possibility of pinching fingers or hands Dear Hunting Trailer Problem You go out hunting in your 4 wheeler You do not want a cart bouncing around in the back of the 4wheeler as you go in to the woods and you don t want the same problem leaving if you don t get anything However if you do get a deer you want a convenient way to carry it with your 4wheeler Deer Hunting Trailer Week 4 Deliverables W Conceptual Design Aaron Lunt Adam Kan Justin Chastang Richard Burge Michelle Siverd Tyler Warnock Georgia mg w re Techm Hj 7 DOlly Tools 020106 Simple Pliers Advantages very durable requires little technical skill inexpensive Disadvantages Buky Can require large amounts of force The Simple Pliers design consists of a punch that attaches either side of the pliers The oil filter is punctured by squeezing the pliers manually and the oil drains out by means of a hose under the influence of gravity Georgia ms ttw ce ttTechm Dgj 7 DOlly Tools Dig 0201 06 Band Wrench Advantages Fits most filters effective inexpensive Disadvantages Hard to fit in tight places two hands required The idea is to use a band type oil filter wrench to clamp on and punch a hole in an oil filter A hose would be connected to the punch to drain the oil out then the wrench could be turned to loosen the filter Georgia trus ttt e thechm U 7 DOlly Tools 020106 Ill Screw Punch Filter Clamp Advantages Lower force requirement Punch depth adjustable by user Adaptable to different sizes punch Disadvantages hose Prone to fouling Poor directionality Operation is slow a creV Fairly complex manufacturing e rea 3 requirements turn This design uses a band type oil filter wrench to hold the filter while a screwing Mechanism is used to insert the punch into the filter Georgia mss ittwttce TechErthcDUCogy DOlly Tools 020106 Cable Ratchet Advantages mechanical punch system adjustable gripper for different orientations of filters Disadvantages more complex and expensive mutipe moving parts The hole is punctured in the oil filter by means of tightening a cable with a ratchet system The cable pulls on an arm that punches through the filter Georgia ms ftt e thechm H 7 DOlly Tools 020106 lig Ratchet Step 43quot cm Advantages mechanical punch system requires less force than pliers Disadvantages bulky hard to fit in small places ratchet mechanism could break orrust poor directionality The c amp is tightened by squeezing the handle The clamp tightens in small steps Once the clamp is tight enough the punch punctures the filter and the oil drains out Georgia mss ttt ee tiTechtm H gjy DOlly Tools 020106 Punch Comparison Cost Complexity Compatibility Directionality E63320 Durability Sum PIierPunch Baseline Baseline Baseline Baseline Baseline Baseline Band Punch 39 39 39 39 N 39 395 Screw 3 Punch Cable N Ratchet Ratchet N Step Georgia ms ttw te thechm H 7 DOlly Tools 020106 lig Drainage Systems mechanical pump Gravity drained hose drill driVen Advant39933 Advantages Chea0 fast drain time easy to use I I Disadvantages Dlsadvantages I need extra tool to operate need large hose to draIn added expense sow drain Georgia me w e Techm U gjy DOily Tools 020106 Iii Drainage Systems air pump venturi Hand Pump Advantages fast drain time Disadvantages need extra tool to operate Advantages fast drain time Disadvantages added cost Georgia me w e Tecthcdgjy 0201 06 Drain Comparison Cost Complexity drain speed Durability hose Baseline Baseline Baseline Baseline mechanical pump air pump venturi Hand operated Sum Georgia ms iiwie fTechmcolmjy lig DOily Tools 0201 06 Week 3 Deliverables Problem StatementPartition Aaron Lunt Adam Kan Justin Chastang Richard Burge Michelle Siverd Tyler Warnock Georgia mg e re fTechm H 7 Team Greyshlrt 012506 Problem Statement When the Oil filter is removed from the engine the remaining Oil spills 0 This Oll drips on to the engine causing it to either smell of burnt Oil or drip 0n the garage oor This may cause a customer to suspect poor serVice Currently there is no system in place to eliminate this problem Georgia me u re fTechm U 7 Team Greyshlrt 012506 Problem Solution The goal is to design a tool to drain the oil filter before removal to reduceeliminate the excess oil spillage 0 This product would be beneficial to commercial oil change facilities 0 The design would accommodate a wide variety of oil filter sizes and orientations Ggorgia me m re fTecthoojy Team Greyshlrt 012506 Design Partition 0 Punch hole in oil filter Design method to puncture side of oil filter in order to drain the oil 0 Drain oil from filter Attach drain system to punch to collect the oil 0 Remove filter from engine Incorporate wrench in with the punch to remove the filter from the engine Ggorgia me t re fTecthoojy Team Greyshlrt 012506 Project Plan 0 Adam Kan Patent Research Prototype Development VideoPhoto Documentation Justin Chastang Design Patent Research Prototype Development 0 Ricky Burge Design CAD Prototype development and testing Georgia me t re fTecthoojy Team Greyshlrt 012506 Project Plan 0 Tyler Warnock Design FEA electronics prototype development 0 Michelle Siyerd Notebook webpage prototype development report 0 Aaron Lunt Engineering calcs CAD website FEA Video Georgia me u re fTecthoojy Team Greyshlrt 012506
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