The document discusses solving complex engineering problems creatively. It talks about understanding failures by using a model that examines intention, behavior, and events. It then provides an example of analyzing the failure of a bearing, looking at the inner race crack, rollers, and bush using a dynamic representation over space and time. It concludes by discussing potential plans and improvements that could be made, such as changing the oil type and adding a breather or electrostatic cleaner.

1. Smart Work…
Solving Complex Engineering
Problems Creatively
Dibyendu De

2. Begin by Understanding Failures

3. What model does the Dog use?

4. RGB waves…. (Intention, Behaviour, Events)

5. S^2 = B => E
• B wave  G wave  R wave
• Stimuli x Structure = Emergent Behaviour  Events (failures, success)
• Stimuli = {F, R, E, T, H, L, S} (both external & internal)
• Structure = {m, k, c, f, p, s}
• Behaviour = {S.E, K.E, A.P, Turbulence, Resonance, Surface, Noise, Entropy}
• Creative Response to Plan/Improve = {+, -, /, x, dy/dx,∫, 0, 1/x, >, <, =>, …}

6. Bearing…

7. Inner Race crack…

8. Rollers….

9. Bush..

10. Dynamic Representation of the failure mechanism :
Space
Align
Crack
Friction Surface Spalling Low cycle fatigue
Stress (HZ) High cycle fatigue
L2
Looseness of sleeve brg.
Coupled 1.Resonant frequencies (warning)
2. Increase in damping factor (Warning)
3. Pink noise (Alarm & stop)
 Displacement & velocity signatures
 Wear debris analysis (Gear contact pattern & spalling
particles)
 Acoustic emission
Time

11. Planning & Improvement
• Change oil from SP 320 to Servomesh 320
• Use silica gel breather
• Electrostatic cleaner
• Al-bronze bush
• Drill a hole in the end cover of the lower bearing
• …..