Elements and Performance Criteria

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Structural support and machine elements
Typically these are beam, strut and tie elements of machines and machine supports subject to bending, tension, compression and shear stresses, and may include:
shafts, levers, cams and linkages
frames, staunchions and beams
mechanisms for converting linear to rotary motion and rotary to linear motion
mechanisms with up to five linkages
lifting machines
Machine mechanisms
Machine mechanisms refers to a device to produce a constrained motion while producing a required output. A mechanism is an assembly of elements or links which may be called ‘kinematic pairs’, which remain in contact throughout their motions. One link, typically the base element, is fixed.
Kinematic pairs may be described as turning, sliding, rolling or skidding pairs
WHS, regulatory requirements and enterprise procedures

WHS, regulatory requirements and enterprise procedures may include:
WHS Acts and regulations
relevant standards
codes of practice
risk assessments
registration requirements
safe work practices
state and territory regulatory requirements
Standards and codes
Standards and codes refer to all relevant Australian and International standards and codes applicable to a particular frame and mechanism
Load calculations to be done with, or obtained from, a professional engineer
The unit requires the ability to identify calculations that should be obtained from or calculated with the assistance of a professional engineer. These may include:
regulatory or organisational requirement for professional engineer involvement
static and dynamic complex analysis of loads, including resulting stresses and deformations
choice of graphical and mathematical methods and software options
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, such as:
specialist electric motor drives and controllers
specialist materials, plastics, metal alloys and nano materials
special processes, foundry, alloy welding, heat treatment, sealing and fastening
Sustainability
Sustainability is used to mean the entire sustainable performance of the organisation/plant including:
meeting all regulatory requirements
conforming to all industry covenants, protocols and best practice guides
minimising ecological and environmental footprint of process, plant and product
maximising economic benefit of process plant and product to the organisation and the community
minimising the negative WHS impact on employees, community and customer
Appropriate computer-aided solutions and validation techniques

Appropriate computer-aided solutions may include:
software employed for performance analysis/modelling. Underpinning program techniques and algorithms should be understood, such as the use of finite element analysis (FEA) and numerical methods within object oriented modelling techniques
Validation techniques include:
comparison of traditional solutions for simple design problems with software solutions to the same design problems
review of previously implemented design challenges which were completed using the software

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to analyse loads on a variety of frames and mechanisms to confirm performance and safety compliance.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently:
identify and review features, functions and performance requirement of frames, beams and mechanisms
identify complex calculations requiring professional engineering assistance
establish dynamics, design loads, working stresses, allowable deformations and factor of safety element arrangements for calculations to be done
evaluate assembly and fastening methods, analysis techniques, software and software validation techniques
analyse static and dynamic operating conditions and determine design or selection parameters
optimise frame, beam and mechanism elements for strength, deflection, arrangement and fastening
communicate and negotiate with stakeholders, professionals and technicians and make adjustments accordingly
evaluate frames, beams and mechanisms for WHS and regulatory requirements, and risk management compliance
report and document results.
Context of and specific resources for assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, then a simulated working environment must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team.
Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.
Method of assessment
Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.
Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.
Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure correct interpretation and application.
Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.
Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.
Assessment may be in conjunction with assessment of other units of competency where required.
Guidance information for assessment
Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.