As a graduate from a PhD program and current KM leader, i may recommend the following:
- Focus on industrial/ engineering research question.
- Open up the research scope to management sciences.
- Complement your proposal with a human-centric approach.
- Discuss how KM has helped to better adopt your solution.
Any KM topic can be revitalised with new perspectives, at the end this is what the scientific community expects from a researcher.
Hope that has helped.