PhD Studentship - Numerical Health Assessment of Surface Wear in Mechanical Contacts

Cranfield University

The research in this doctoral opportunity will numerical assess single/multiple point wear in mechanical contacts and its relation with airborne friction noise.

Friction noise and wear phenomena are inevitable in machine components even working in normal operational conditions. Surface degradation, at the mechanical contacts due to wear, has an impact on the noise emitted because of the rapid release of energy from localized sources within a material. Severity of surface degradation can change the noise spectrum, and hence an analysis of emitted noise can lead to the possible health diagnosis of machine components.

Researchers have shown the empirical trend modelling between noise signals and the wear in terms of accumulated signal energy and changes in spectrum amplitude. However, due to complexities in wear tribo-mechanics, it is still a challenge to numerically generate friction noise even for a single mechanical contact which is under degradation due to wear phenomenon.

In this research, numerical modelling will be performed for assessing the relationship between the friction noise and wear in mechanical contacts. Asperities of contacts will be tangentially loaded in such a manner that one of the contact asperity will be assumed as static and the other will create sliding effect for the wear. The materials selection will also allow to assume that one of the material asperity will be worn out while other will be responsible for the generation of the compression wave in the air medium. Later, this compression wave will be used to generate the friction noise, which will further be used to investigate the wear in contact.

  • Application deadline: Ongoing
  • Award type(s):PhD
  • Duration of award 3 years
  • Eligibility: UK, EU, Rest of World

Supervisors: Dr Muhammad Khan and Professor Andrew Starr

Entry requirements

  • A minimum of a 2:1 first degree in a relevant discipline/subject area (e.g. aerospace, automotive, mechanical, and  manufacturing) with a minimum 60% mark in the Project element or equivalent with a minimum 60% overall module average.
  • The potential to engage in innovative research and to complete the PhD within a three-year period of study.
  • A minimum of English language proficiency (IELTS overall minimum score of 6.5).

Funding: Self-funded

Doctoral Training Centre
Research students at Cranfield benefit from being part of a dynamic, focused and professional study environment and all become valued members of the Cranfield Doctoral Network. This Network brings together both research students and staff, providing a platform for our researchers to share ideas, identify opportunities for collaboration and create smaller communities of practice.  It aims to encourage an effective and vibrant research culture, founded upon the diversity of activities and knowledge. A tailored programme of seminars and events alongside our Doctoral Researchers Core Development programme (transferable skills training), provide those studying a research degree with a wealth of social and networking opportunities.

How to apply
Before completing the application documentation please contact Dr Muhammad Khan

If you are eligible to apply for this research studentship, please complete the online application form.

For further information contact us today:
T: 44 (0)1234 758008

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