226-Lect 1 - Objectives Analyse rigid bodies in plane...

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1 Week 1 Dr Weihua LI School of MMM, UOW Office: 8.110 Phone: 4221 3490 E-mail: weihuali@uow.edu.au Week 1 Objectives Analyse rigid bodies in plane motion Classify plane mechanisms , determine mobility and carry out basic mechanism synthesis Understand the kinematics of plane mechanisms Analyse the forces acting on plane mechanisms Solve a kinematic or kinetic problem using analytical , graphical or software tools Week 1 Topics Mechanism synthesis Kinematics (motion) & Kinetics (force) of simple mechanisms in Plane Motion graphical and analytical velocity and acceleration analysis •S u p e r p o s i t i o n •V i r t u a l w o r k Energy method CAD mechanism design & analysis Balancing rotating masses Week 1 Text/Reference Books Text book R L Norton - Design of Machinery, 4th Edition References: Hibbler - Engineering Mechanics - Dynamics (or similar) Mabie & Reinholtz – Mechanisms and Dynamics of Machinery, 4 th edition (call no 621.8/51)
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2 Week 1 Lecture/Tutorial Times Lecture Time Tuesday 16.30 – 18.30 35.G20 Tutorial Time Group 1: Wednesday 14.30 – 16.30 8.G25 Group 2: Thursday 08.30 – 10.30 8.G25 Group 3: Friday 09.30 – 11.30 8.G25 You can register and check your tutorial group via eLearning Week 1 Labs Lab 1 (41.263) week 3 (group of 4) Lab 2 (Coniston workshop, block A2) week 7 (group of 3, bus transportation provided) Lab 3 (Coniston workshop, block A2) week 9 or 11 (group of 3, bus transportation provided) You will be asked to register your lab group via SMP Week 1 Proposed Subject Program Week/ Lecturer Date Topic Tut/Labs 1, WL 27 Jul Introduction, Inertia (calculation, experimental determination) mechanism types, basic 4-bar mechanism synthesis, mobility, branches, Gruebler’s Equation 2, WL 3 Aug Cam Profiles – Analysis & generation, fol ower length, cusping Tut 1 hand-in 3, WL 10 Aug Velocity analysis, graphical & instantaneous centres Lab 1 (41.263) 4, WL 17 Aug Velocity analysis, analytical method (rotating axes, vectors) Tut 2 hand-in 5, WL 24 Aug Acceleration analysis, analytical method 6, WL 31 Aug Acceleration analysis, graphical method Tut 3 hand-in 7, WL 7 Sep Force analysis, superposition - graphical method Lab 2 (Coniston lab) 8, WL 14 Sep Mid-session quiz No tutorial 9, PAC 21 Sep Force analysis, superposition - analytical method Tut 4 hand-in Lab 3 (Coniston lab) RECESS (28/9/2009 – 5/10/2009) 10, PAC 5 Oct Virtual work method Tut 5 hand-in 11, PAC 12 Oct Energy distribution method Lab 3 (Coniston lab) 12, PAC 19 Oct Balance of rotors and mechanisms Tut 6 hand-in 13, WL/PAC 26 Oct Review Week 1 Assessment • Final exam 45% - at least 40% in the final exam for an overall pass • Mid-session Quiz 16% • 6 tutorial hand-ins 6% • Three labs 33%
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3 Week 1 Week 1 Introduction, Kinematics Fundamentals Week 1 Overall Purpose To develop our ability to design variable mechanism solutions to real, unstructured engineering problems by using a design process • Synthesis of mechanisms to accomplish desired motions or tasks • Analysis of mechanisms to determine their rigid-body dynamic behavior • The above relates to kinematics and
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226-Lect 1 - Objectives Analyse rigid bodies in plane...

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