Reference no: EM132590546 , Length: word count:2000

Assignment - Personal Case Study

Design and reliability of Machine Elements

Learning outcome 1: Describe the scientific features of different lubrication regimes and explain their significance in the context of the tribological performance of machine components

Learning outcome 2: Apply scientific and mechanical principles to analyse components to evaluate wear rates and friction coefficients using simple models for friction and wear

Learning outcome 3: Employ data, including extracting data pertinent to an unfamiliar problem, to synthesize innovative designs and/or critically evaluate the performance of journal bearings, tilted sliding pads and Hertzian contacts using calculator based and computer software based methods

Learning outcome 4: Apply mathematical models to critically review the reliability / failure of groups of machine elements and assess the limitations of a system

Learning outcome 5: Evaluate the impact of approaches to tribological elements of design and operational practice on the sustainability of products and/or engineering systems

The task

For this assignment you are asked to conduct an individual short "Personal Case Study" in which you analyse, in detail, the tribological performance (ie., lubrication, friction or wear) of a mechanism or moving contact of your own choice using a mathematical model. (Typically this will be implemented in an Excel spreadsheet.)

A brief draft (1 - 2 page) written plan describing this study, outlining the subject, specific aim (study question to be addressed) and plan (including the list of equations to be used in your analysis placed in order), should be discussed and agreed with the Module Leader by 25th November 2019 at the latest. (Email a copy of your plan to the Module Leader. This is a formative element, no marks are associated with this submission, it is done to ensure that you are working towards your marked assessment in an appropriate way.)

For assessment, you are asked to present the results of this study in written form in a short "technical paper" as well as making a "Three Minute Presentation (3MT) Powerpoint presentation about the work. Both of these elements will be assessed and marks will contribute to the module mark.

The technical paper and presentation must include:

• A brief literature survey
• A detailed description of the mathematical model for the mechanism of lubrication, friction or wear you adopt.
• A quantitative example, that is a numerical analysis, of the effect of changes in design or operation of the device on the lubrication/friction/wear mechanism in application you have chosen
• A description and quantitative assessment of the ways to optimise a design approach to this phenomenon, (e.g., improve the lubrication conditions or reduce friction or wear).

This study is intended to allow you to investigate the tribological phenomena you study in class in more detail and to place it into the context of an engineering application. This work expects you to seek out and review research papers, technical data and reports on relevant topics. The task also extends an opportunity for you to develop key skills in conveying technical information and knowledge.

Attachment:- Advanced Tribology.rar