Assignment/Project Title: Assignment

PROC5235 Assignment 1345AT2 V2.docx Updated: 24/9/13 Printed: 24/09/2013 of 25

Created by: Sergei Eljaste Reviewed by: Mark Burns & Leon Mattatia

School of Engineering (TAFE)

Program: 6069 Assignment Cover Sheet

Student Name(s):

Student ID No(s): Group

Assessment due date: 24/10/2013 Assessment Ref: 2 of 3 tasks Assessment Weighting: 40% (Marks 100)

Course (Competency) Title: Design Mechanical machines

RMIT Course Code: PROC5235 National Unit Code: VBP278

Assignment/Project Title: Assignment

Teacher & Assessor: Serge Eljaste

General instructions to Students:

1. Late submission approval must comply with RMIT policy: Application for extension of

submittable work (7 calendar days or less) form. NB: Must be submitted 24 hours before

due time. Refer: http://www.rmit.edu.au/students/assessment/extension

2. Special consideration for assessment Application for special consideration form. Refer:

http://www.rmit.edu.au/students/specialconsideration

3. Students must attach a signed copy of the ‘Assignment Coversheet’ to the front page of

all submissions for assessment. Cover sheet is available from SOET Reception, Building

57, Level 5.

4. For area(s) where a student/team is deemed NYC: agreed deadline will be recorded and

advised for the student(s) to demonstrate competency. The date must be within the

enrolment dates for this competency, otherwise an overall result of NYC will be recorded.

5. Plagiarism: This assignment must be all your own work and all information sources

used must be properly acknowledged.

http://mams.rmit.edu.au/seca86tti4g4z.pdf

http://mams.rmit.edu.au/seca86tti4g4z.pdf

http://www.rmit.edu.au/students/assessment/extension

http://mams.rmit.edu.au/8a5dgcaqvaes1.pdf

http://www.rmit.edu.au/students/specialconsideration



Course: PROC5235 Design mechanical machines

This assignment addresses the following:

No. Element title PC Performance Criteria

1

Interpret

design

requirements

for a rotating

machine.

1.1 OH&S and environmental requirements for a given work area are obtained and

understood and impact on design are identified.

1.2 The machine design task is determined through requests, work orders or equivalent

and clarified with the appropriate personnel

1.3 Mechanical variables which will affect the design are analysed.

1.4 Where appropriate, expert advice is sought with respect to the design task and

according to enterprise procedures.

2

Select

mechanical

machine

components

2.1 OH&S requirements for carrying out the work are followed.

2.2 Machine components are selected from applicable reference documents to meet the

design specification, calculations and to satisfy cost reliability and life requirements.

2.3 Component sizes and tolerances are calculated using standard formulas and standard

(tabulated) component data.

2.4 Mechanical measurements and calculations are performed and interpreted correctly.

3

Design

mechanical

machine


3.2 Resources and equipment for the task are obtained in accordance with enterprise

procedures and checked for correct operation and safety.

3.3 Principles of mechanical drive systems and standard machine design are applied to the

design task.

3.4 Feasibility of proposed design is determined based on calculations and relevant

diagrams/drawings.

3.5 Machine design is prepared using relevant calculations.

3.6 Machine design is optimised within design parameters, using relevant calculations.

3.7 Decisions for dealing with unexpected situations are made from discussions with

appropriate personnel, job specifications and enterprise procedures.

4

Document

machine

design.


4.2 Design documentation and reports are prepared with all relevant design information.

4.3 Final design specifications are established and agreed on with appropriate personnel.

4.4 Alternative design solutions are provided, where required.



Student feedback (PC = Performance Criteria)

Course: PROC5235 Design mechanical machines

Question No.

PC Ref CA/NYC (Circle)

Marks available

Marks gained

Feedback/Gap Resolution/ Action Plan

1. 1.1, 1.4 CA/NYC 15

2.

1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5

CA/NYC 10

3. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

4. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

5. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

6. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

7. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

8. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

9. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

10. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

11. 1.2, 1.3, 2.1

– 2.4, 3.1 –

3.7, 4.1 – 4.5 CA/NYC 10

Overall result CA/NYC 115 [ /40%]

Overall result for this assignment:

NB: Only if your overall course result is Competent (i.e. CA), will the marks gained be applied to a graded result.

NB: If you received an NYC result above, then you have until ___/__/__ OR 2 weeks to demonstrate competency or the NYC result will become final.

Assessor Name (PRINT): ____________ Signature________________Date: ___/____/____

Copy to:

Student Name (PRINT): _____________ Signature: _______________Date: ___/____/____



Assignment specific instructions 1. Neatly and clearly fill the gaps in questions with your answers. Use black or blue pen.

2. The referencing system to be used is as per question.

3. Marks: as shown for each question.

4. Include a suitable cover page on your assignment: [i.e. Course (Army), Teacher,

assignment and due date]

Design of the countershaft

Procedure (Logical Design steps)

I. a) Explain OH&S and environmental requirements.

b) How would they affect the design of the countershaft?

c) How would you seek the relevant information and advice with respect to the

design task?

Write at least a paragraph as an answer to each of the questions. (5+5+5=15

marks)

II. Select a suitable chain drive (10 marks)

III. Determine resultant forces acting on shaft and in which planes (10 marks)

IV. Draw Free Body diagram and determine reaction forces by calculation (10 marks)

V. Draw Shear Force and Bending Moment diagrams for forces acting in each plane

(10 marks)

VI. Calculate maximum Equivalent torque Te acting on the shaft. Calculate the

diameter of the shaft (10 marks)

VII. Check stress concentrations (10 marks)

VIII. Check shaft diameter at the points of loading (10 marks)

IX. Check deflection of the shaft (10 marks)

X. Check shear and bending stresses on keys (10 marks)

XI. Select suitable bearings for 20,000 hours of life (10 marks)

Assignment/Project Title: Assignment

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