Please note - Swinburne University of Technology

~ ~ 3 6 Ergonomics
0
No. of hours per week: three hours
Subject aims and description
This subject is a continuation of MM260 and expands on the
material introduced in the second year subject.
Ergonomics systems concepts: ergonomic systems modelling,
approaches to problem analysis and design synthesis. Human
body: functional anatomy: human skeletal and muscular
system of hand-arm-shoulder and spinal structures; structure
of eye, vision characteristics and limitations; structure of ear,
hear~ng characteristics and limitations, influence of noise.
Biomechanics of work tasks: application to lifting, pulling,
pushing tasks. Engineering and psychology: quantification of
human informat~on processing to perception, cognition and
motor tasks. Vigilance and attention: signal detection theory,
reaction time, decision making; strategies, concepts of utility,
subjective probability and expected values. Physical
environmental factors. Thermal stress: measurement indices,
alleviation and control techniques. Illumination: principles
related to human operators, physical relationships, definitions,
spectral characteristics and measurement of variables,
introduction to standards and codes. Noise: physical quantities
and definitions, spectral characteristics and measurements,
effect on human operators threshold limits, introduction to
9 -. standards regulations and codes of ~ractice. Vibration: ~hvsical
5: sources and effects on human body structures, measurement
techniques, introduction to standards and codes of practice.
q Human - environment - workplace interface: displays and
m control compatibility, design of operator interface. Workspace
W. and systems evaluation, assessment methods for working
3
n
m environment and task demands. Workspace design, modelling
and synthesis techniques. Work orqanisation: application of
, a ,
3 skills and task analy& to job design, worker stress, motivation
'Q.
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theories, effects of job type on worker performance, shiftwork.
5. References
Chaffin, D. and Andersson. Occupational Biomechanics. New York,
a, Wiley, 1984
Kantowitz and Sorkin. Human Factors: Understanding People -
0 System Relationships. New York, Wiley, 1983
. Sanders, M.S. and McCormack, E.J. Human Factors in Engineering and
Design. 7th edn, New York, McGraw-Hill, 1993
Wickens, C.D. Engineering Psychology and Human Performance.
Columbus, Merrill, 1984
MM370
Manufacturing Technology
No. of hours per week: five hours
Assessment: assignments and tests
Subject aims and description
Sheetmetal work: presses; classification, drive systems and
mechanisms, evaluation of different types, operation,
applications, selection. Press feed mechanisms; types,
advantages and disadvantages, applications. Die cushions.
Bending of sheetmetal; analysis of die types, forces, recoil,
springback, blank development. Deep drawing; planning, force
requirements, variables, effects of clearance, cutting with
shear, stripping force. Materials selection for press forming;
general requirements, mechanical tests, tensile test, analysis of
stress-strain curves and parameters, r and n values, tests to
simulate processes, stretch forming tests, deep drawing tests,
bending tests, forming-limit diagrams, applications. Function
and terminology for die components; blanking dies,
commercially available die sets, punches and accessories.
Numerical control; introduction to NC machine tools,
comparison with conventional, hardware configurations,
software implementation, control systems, machine control
unit, feedback, sensitivity. NC system components;
comparison of actuation systems, electric, hydraulic,
pneumatic. Design considerations for NC machine tools;
design differences between conventional and NC machines,
mechanical design considerations, control system design
considerations. System inpuWoutput; types of input media,
symbolic codes, tape input format, communication with MCU.
NC programming; programming methods, computer assisted
NC programming [processors, post; processors], part
programming languages - APT. Computer Numerical Control
(CNC), Direct Numerical Control (DNC); comparison,
management implications.
Plastics and rubbers; overview of processes. Melt forming,
rheology, mathematical analysis of pseudoplastic, dilatent,
newtonian flow, time dependant flow, thixotropy, viscosity,
tractional viscosity. Extrusion defects; causes and prevention.
Extrusion die design. Single and multiple screw extrusion;
hardware and product characteristics. Injection moulding;
mould design, basics of the moldflow philosophy, cooling
systems. Thermoforming die design. Elastomers; C black, other
additives, compounding. Compression and injection moulding.
Textbooks
Crawford, R.J. Plastics Engineering. 2nd edn, Oxford, Pergamon Press,
1987
Groover, M.P. Automation, Production Systems and Computer
Integrated Manufacturing. 2nd edn, Englewood Cliffs, N.J., Prentice
Hall, 1987
References
Harris, J.N. Mechanical Working of Metals. Oxford, Pergamon, 1983
Kalpakjian, S. Manufacturing Processes for Engineering Materials. 2nd
edn, Reading, Mass., Addison-Wesley, 1991
~ ~ 3 8Productivity 0 Improvement
No. of hours per week: two hours
Assessment: final examination and assignments
Subject aims and description
Productivity: definition, social and economic implications,
waste reduction attitudes. Productivity measurement systems
and benchmarkina.
Work study: metGod study, time measurement, (stopwatch,
predetermined methods, work samplinq). . -
Value analysis and engineering.
Ergonomics: basic ideas related to method study.
Laboratory exercises will be conducted on relevant issues.
References
Doty, Leonard, A. Work Methods and Measurement. Delman, 1989
/LO Introduction to Work Studx 3rd rev. edn, I.L.O., 1986
Kobayashi, I. Twenty keys to Workplace Improvement, Productivity
Press, 1990
Kato, K. Productivity Through Motion Study Productivity Press, 1991
Kaydos, W. Productivit~ Improvement, Management and
Measurement. Productivity Press, 1991
Shiudata, I. Productivity Through Process Analysis. Productivity Press,
1991