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MEM23109A

MEM23109A: Apply engineering mechanics principles

Nominal Hours: 54 | Diploma/Adv Dip: Elective (Group 3) | Competency Based
Assessment Plan A: (One Semester: 18 weeks)
Updated Feb 2015

DYNAMICS (18 weeks)

 Task Topic Description and Link to Notes Quiz # Practice iTester Assess Moodle Lesson schedule Assess schedule Work Load% Must Pass Book Chap Suggest MEM30005A Forces* 10201 10202 - - - - - Pre req MEM23004A Apply technical maths** - - - Y - 3 10501 1 5 10 Y 13 4 10502 2 5 10 Y 13,19 5 10503 3 6 10 Y 14 6 10504 5 7 10 Y 10,11 7 10505 7 9 10 Y 15 8 10506 9 11 15 Y 16 9 10507 11 13 15 Y 17,18,20 10 10508 14 16 10 Y 21 11 Simple Machines 10509 15 17 10 Y 22 12 Written Test: Dynamics - project / written / unseen question test Exam - - - 17* - Y - TOTAL - - - - - 100 -

Quiz = Computer Based Testing: Typically consists of practice mode (iTester) and assessment mode (Moodle).
Exam = Written test submitted on paper, all working shown neatly.
* Suggested co-requisite - esp for early tests such as 10201 FBD and 10202 Adding Forces.

** Official pre-requisite rather amiss. All of the mathematics in this unit is covered in compulsory Maths MEM300012A.

Required Texts

 Text book Subjects Picture Ivanoff, Val Engineering mechanics: An introduction to statics, dynamics and strength of materials  McGraw-Hill.  1996 ISBN 0074702394 RRP \$80.95 (June 2009) Forces (Statics) Dynamics Stresses

ASSESSMENT

(*CAUTION: This subject contains two unofficial pre-requisites: MEM30005A Forces and MEM30006A Stresses. MEM30005A must be done prior (pre-requisite), but MEM30006A can be done concurrently (co-requisite) Assessment is a combination of multiple choice tests, written tests, and submitted reports (print/email).

• Lab Reports: Specification for lab reports. (Including error analysis where required)
• Project Reports: Specification for project reports.
• TESTER tasks: Computer based learning and assessment using the TESTER program.
Procedures and rules. For most computer-based assessments, homework must be presented before Tester (exam mode) can be attempted.  In some cases, certain programs (e.g. Excel) are excluded from running with Tester during an exam.

This unit applies basic scientific principles and techniques in mechanical and manufacturing engineering situations, covering three branches of mechanics - Dynamics, Fluids and Thermodynamics.

Formula Sheet

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MEM23109A UNIT INFORMATION

Elements of Competency and Performance Criteria

 1. Identify scope of required analysis Identify device, machine or system and component parts for analysis Assess engineering mechanics principles, skills and techniques required by tasks Review functions and features of devices, machines and systems Assess software techniques required for basic analysis and graphics required by the task Identify stakeholders to be consulted on analysis tasks Confirm work health and safety (WHS) and regulatory requirements, risk management and organisational procedures Review sustainability implications of tasks Determine available sources for any required technical and professional assistance 2. Apply engineering mechanics principles and techniques to tasks Identify appropriate engineering mechanics principles and analytical, graphical and software-assisted techniques applicable to task Validate software results using analytical and graphical methods Ensure clear and logical process of analysis and compatibility of units in calculations Apply resultant loads and reactions on machines, support frames and beams due to parallel and oblique, concentrated and distributed loads and moments Apply the torque and power required to drive translation screws and winding drums against inclined and vertically suspended loads subject to gravitation, acceleration and friction resistance loads Select a range of standard hardware to meet specifications Analyse bending and shear stresses in beams subject to static point and distributed loads 3. Report results Record results of investigation, evaluation and application Provide documentation, such as calculations, diagrams, programs and files

Glossary (Range Statement)

 Engineering mechanics tasks Engineering mechanics tasks covered by this unit include, but are not limited to: • application of resultant loads and reactions on machines, support frames and beams • application of the torque and power required to drive translation screws and winding drums against inclined and vertically suspended loads subject to gravitation, acceleration and friction resistance loads • selecting a range of standard hardware, such as shafts, bolts and hooks, subject to plane axial or shear stresses and deformation limits • analysing bending and shear stresses in beams subject to static point and distributed loads Motions Motions described in this unit may be of constant velocity, constant acceleration or sinusoidal accelerations (e.g. sprung bodies). Other non-uniformly accelerated motions may be described for contrast only. This unit confines itself to 2-D plane motion Appropriate licensed technical and professional assistance Appropriate licensed technical and professional assistance may include: technical support and advice relating to elements which have intrinsic dangers, such as: high pressure energised fluid vessels high temperatures and heat energy capacity wiring with high current control voltages above extra low voltage professional support for technologies may include: specialist electric motor drives and controllers specialist materials, plastics, metal alloys and nano materials special processes, foundry, alloy welding, heat treatment, sealing and fastening WHS, regulatory requirements and enterprise procedures WHS, regulatory requirements and enterprise procedures may include: WHS Acts and regulations relevant standards codes of practice from Australian and overseas engineering and technical associations and societies risk assessments registration requirements safe work practices state and territory regulatory requirements Analysis Analysis may include: static and dynamic analysis of loads the stresses and deformations resulting the transmitted power, torque and speed graphical and mathematical methods and software options

Knowledge and Skills

 Skills identifying parameters and context of tasks, chain of responsibility, WHS and regulatory requirements, risk management and organisational procedures confirming personal functions and responsibilities, team and support functional group interdependencies and communications, appropriate qualifications and delegations, and appropriate support reviewing sustainability implications, functions and features of devices, machines and systems assessing and applying mechanics principles, software basic analysis and graphics skills and techniques to mechanical devices and systems employing techniques to ensure clear and logical process of analysis and compatibility of units in calculations reporting and documenting results of investigation, evaluation and application, calculations, diagrams, programs and files Knowledge mathematical techniques, including arithmetic, algebra, trigonometry, geometry and differential calculus definition of typical applications of mechanics, statics, dynamics, kinematics, kinetics and strength of materials analytical, graphical, semi-graphical and software-assisted techniques for all tasks physical quantities and dimensions, including international system of units (SI) and fundamental dimensions and units (MEM30005A) basic principles of statics applicable to mechanical devices and systems (MEM30005A) application of force systems applied to bodies, frames and beams friction laws and applications in mechanical devices and systems (MEM30006A) stress and strain: (MEM30006A) axial stress (MEM30006A) shear stress (MEM30006A) bolted and welded joints (MEM30006A) torsional stress (MEM30006A) bending of beams dynamics applicable to mechanical devices and systems, including: kinematics of rectilinear motion: displacement, velocity and acceleration equations of rectilinear motion equations of simple harmonic motion uniform acceleration and sinusoidal acceleration kinetics of rectilinear motion: force, mass and acceleration freely falling bodies acceleration against resistance (accelerating force = unbalanced force) acceleration against gravity and terminal velocity acceleration against dry sliding friction and air resistance forces diagrams curvilinear motion: normal acceleration in curvilinear motion centrifugal force circular motion as a particular case of curvilinear motion kinematics of rotation: rotational motion angular displacement angular velocity angular acceleration conversions of units of angular motion equations of rotation with uniform acceleration relation between linear and angular motion kinetics of rotation: moment of inertia, second moment of mass, concept and units torque due to inertia compared with torque due to winding drum rope force the law of a machine work, energy and power (MEM30009A) specifications for engineering hardware applicable to mechanical devices and systems