1. Novel Topologies for Active Vibration Management in Flexible Rotors Supervisors Patrick KEOGH Necip SAHINKAYA UKACC PhD Presentation Showcase Researcher Chris LUSTY University of Bath

2. UKACC PhD Presentation Showcase Slide 2 Introduction  Vibration is a major consideration in the design of rotating machinery  This is especially the case where high speed rotation is involved  Improving the ability to handle vibrations opens up new possibilities in machine design

3. UKACC PhD Presentation Showcase Slide 3 The Problem  Excessive vibration at certain “critical speeds” can lead to machine damage / failure  Critical speeds are a function of rotor properties  Look to alter rotor properties in such a way as to shift critical speeds

4. UKACC PhD Presentation Showcase Slide 4 The Problem  A preferable vibration response is shown here:

5. UKACC PhD Presentation Showcase Slide 5 The Proposed Solution  The solution is conceptually inspired by tuned mass damping

6. UKACC PhD Presentation Showcase Slide 6 The Proposed Solution  A practical rig has been designed to test the merit of the idea

7. UKACC PhD Presentation Showcase Slide 7 The Proposed Solution  A practical rig has been designed to test the merit of the idea

8. UKACC PhD Presentation Showcase Slide 8 Conclusion or summary or future work  A novel topology has been proposed to reduced vibration amplitudes in flexible rotors  It has been shown to be promising by FE analysis  A rig has been designed to practically test the idea  The rig is designed to be progressive, enabling increasingly complex testing to explore the scope of the idea