Category | Assignment | Subject | Engineering |
---|---|---|---|
University | University of Derby | Module Title | 7ME500 Advanced Mechanical Design and Manufacturing Engineering |
Assessment Type | Individual Report |
Word Count | 3,000 words |
Submission Date | Noon UK time, 08/05/2025 |
Provisional Feedback Release Date | 09:00 UK time, 29/05/2025 |
An integrated design, material selection, and manufacturing approach provides one of the key enabling capabilities needed to effectively evaluate specific areas of initial concept development and perform detailed engineering design and analysis throughout a product development cycle. This assessment will examine the integrated engineering approach, which incorporates infrastructure, design, and analysis formats and tools that can be exercised concurrently and provide benefits from the standpoint of producing a better design, optimised results, lower costs, and reduced risk.
This assessment has been designed to enable students to apply fundamental knowledge of mechanical design, analysis, simulation, optimisation, and manufacturing technologies learned from classes to a case study practice at a postgraduate level. This assignment has also provided students with a good example to solve any engineering problems in an industry-based context.
The connecting rod in an internal combustion engine has the primary role of turning the reciprocating motion of the piston into rotational motion that the crankshaft can then output as work. The connecting rod is made of: the small end, which connects to the piston head via a pin, the big end, which connects to the crankshaft via a rod cap and slip bearing, and the shank or I-section that connects the two ends respectively, as shown in Figure 1.
Figure 1: Diagram of a Connecting Rod
The connecting rod is a critical component of an internal combustion engine that undergoes a variety of repeated tensile/compressive loads along with inertial forces created by its rotating motion.
In this coursework, a Yamaha motorcycle engine will be investigated as an example (see the attached Yamaha Engine Manual). The primary task is to critically analyse the workloads, justify suitable material and optimise the design structure of the connecting rod. Table 1 below is the specifications of engine parameters and workload conditions of a Yamaha motorcycle engine.
Based on the above Description of the Assessment and additional supporting materials provided (in the Assignment Support Materials folder on Blackboard), you are required to carry out the following work:
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Parameter Name |
Symbol |
Value |
Units |
Single cylinder volume |
V |
249.5 |
cc |
Engine power |
P |
148.8 @10,000 rpm |
HP |
Output torque |
T |
108 @7,750 rpm |
Nm |
Engine speed |
RPM |
8,000 to 11,000 |
rpm |
Maximum combustion pressure |
MCP |
18,500 |
kPa |
Stroke |
S |
0.058 |
m |
Connecting rod length |
l |
0.1131 |
m |
Cylinder bore |
d |
0.074 |
m |
Crank radius |
r |
0.029 |
m |
Average connecting rod area |
Ac |
1.205 × 10-4 |
m2 |
Mass of piston head |
mpiston |
0.199 |
kg |
Mass of gudgeon pin |
mg-pin |
0.049 |
kg |
The assignment must be delivered in the form of a report using the standard Harvard citing and referencing style (3,000 words plus ± 10% tolerance, excluding the Cover Page, Table of Contents, Figures, Tables/Graphics, References/Bibliography and/or Appendices, etc.). Your report must be submitted in an electronic form through an online Turnitin submission point on Blackboard.
You are also requested to upload your original CAD modelling, static FEA simulation files to the assignment folder “CAD modelling, FEA simulation and PPT presentation files” in this Module Teams Space under individual channels by the submission deadline. Your PPT files are uploaded to the same folder after your presentation assessment.
Marking Criteria |
Mark Allocation |
Structure and Presentation: Layout, language, references and formatting |
10% |
Evidence of Research: Depth of understanding of theory, including evidence of wider reading and relevance of sources |
20% |
Development and Implementation: Use of appropriate techniques and methodology to validate the final work |
30% |
Analysis, Evaluation and Interpretation: Result appraisal, resolution, comparison, justification and elaboration |
30% |
Summary and Conclusions: Synthesis of achievements and/or findings and identification of improvements and/or future work |
10% |
The assessment rubric on the next 2 pages shows the complete criteria of the CW and how you will be assessed.
Level |
Very Poor (Fail) |
Unsatisfactory (Marginal Fail) |
Good/Satisfactory (Pass) |
Very Good (Merit) |
Excellent (Distinction) |
Below 3G% |
40-4G% |
50-5G% |
60-6G% |
70-100% |
|
Structure and Presentation:
Layout, language, references and formatting (10 %). |
Inadequate structure with no sense of logical argument. Many errors in spelling, grammar and punctuation. No visual aids (e.g. images, figures or diagrams) are used. Discussion of concepts used and supporting arguments are very difficult to follow. |
One or more of the following applies. Weak or indistinct structure to communicate and formulate argument. Many errors in spelling, grammar and punctuation. No visual aids (e.g. images, figures or diagrams) are used to support discussions. Difficult to read through and comprehend. |
Appropriate structure, fair synthesis but a mechanical presentation. Few minor errors in spelling, grammar and punctuation. Visual aids (e.g. images, figures or diagrams) are used to support discussions. Easy to read through and comprehend. |
Coherent structure, enough synthesis of sources to enable interpretation. Very few notable errors in spelling, grammar and punctuation. Visual aids (images, figures or diagrams) are effectively used to support discussions. Very easy to read through and comprehend. |
Highly coherent structure with excellent synthesis of sources. No notable errors in spelling, grammar and punctuation. Visual aids (e.g. images, figures or diagrams) are very effectively used to support discussions well. Very easy to read through and comprehend. |
Evidence of Research:
Depth of understanding of theory including evidence of wider reading and relevance of sources (20 %). |
Inadequate research both in detail and coverage of issues. Poor level of knowledge including inaccurate or erroneous information. Poor evidence of wider reading with no references. |
Poor quality of research with more depth required. Not all aspects of the task have been researched and an adequate level of understanding has not been demonstrated. Very limited evidence of wider reading and incomplete referencing. |
Some good research has been conducted to demonstrate a clear understanding of key theories and principles. Appropriate sources for information have been referenced but there are areas which need to be approached with more rigor. |
On the whole, some comprehensive research has been conducted. But in some areas more detail is needed to fully support the findings. The report demonstrates a very good understanding of the related theories and provides referenced evidence of wider reading around the subject. |
Excellent, detailed and comprehensive research has been undertaken. The report demonstrates a thorough understanding of complex issues and there are numerous references to information which support the rationale. |
Development and Implementation: Use of appropriate theories, techniques and methodology to validate the final work (30 %). |
Does not demonstrate understanding of the issues and information/data used may be irrelevant. Theories, principles and tools have not been applied correctly. There is a lack of any |
There is limited evidence of consideration of the appropriate methods. Limited basic theories and techniques has been followed but there needs to be much greater depth to this in |
Use of the theories, principles and core processes has enabled some sensible application of the accepted methodology but more understanding of limitations and |
An appropriate approach to the task has been used. An accepted methodology is followed along with an understanding of how the specifics for this case impact on the output. Some areas could be |
An almost faultless application of the theories, principles and methodology. Very clear awareness of the specifics of this case and how the model must be adapted to suit each scenario. |
|
methodical approach and little structure to the output. |
order to generate a reliable output. |
assumptions would improve your output. |
improved by more careful understanding of the methodology. |
|
Analysis, Evaluation and Interpretation: Result appraisal, resolution, comparison, justification and elaboration (30 %). |
There is little or no attempt at analysis and evaluation. Little in the way of an analysis and evaluation of the results has been presented. |
The report is largely descriptive. Limited separate analysis and evaluation of the results have been presented. |
Generally, the analysis and evaluation of the project is satisfactory. Attempts have been made to show how issues are related but more work could be done to provide clearer links. |
A very well justified analysis and evaluation based on sound knowledge and analysis. Complex issues have been interpreted. Some very minor flaws or incorrect judgments have been made |
A well-balanced and in-depth analysis and evaluation of the findings is presented and fully justified. |
Summary and Conclusions:
Synthesis of achievements and identification of improvements and/or future work (10 %). |
No conclusions have been drawn or are very weak and uncorroborated. Recommendations for future work are either irrelevant or unsubstantiated. |
Conclusions drawn from the work are very limited and show no added value from the work carried out. Some conclusions may be incorrect or flawed. No effort has been made to relate issues and present a cohesive set of recommendations |
Some useful conclusions have been drawn which are sensible and supported by the information presented and the analysis is of reasonable depth. |
Very good conclusions have been drawn which are located in and logically drawn from the information presented. Clear reasoning on why recommendations have been made. |
Conclusions are drawn from excellent and incisive analysis. The recommendations made are clear and appropriate. |
Anonymous marking policy applies to this CW submission. You must submit your work using your student number to identify yourself, not your name.
The University’s regulations, policies and procedures for students define the framework within which teaching and assessment are conducted. Please make sure you are familiar with these regulations, policies and procedures.
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