smart work

Smart Work… Solving Complex Engineering

Problems CreativelyDibyendu De

Begin by Understanding Failures

What model does the Dog use?

RGB waves…. (Intention, Behaviour, Events)

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, >, <, =>, …}

Bearing…

Inner Race crack…

Rollers….

Bush..

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

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• …..