Availability Centered

Maintenance

For

Anti-Fragility

By

Dibyendu De

@predictswan

Level 1 course

1. Problem & Case Studies

2. Strategies

3. Principles - Flow, Oscillation, Wear

4. Sensing system behavior & intentions

5. Techniques for improvement

6. Dynamic Plan -- Workshop

Definition of ACM

Responses aimed at modulating system

behavior of engineered systems for anti-fragility

to make time &resources available for

productive use.

Goal: Life style management

Why ACM?

More than 68% failures in a manufacturing

system are random in nature.

On average 26 days are used in recovering

overheads. Only 4 days to make profits.

In a manufacturing system as high as 40% of

the total production cost goes in maintenance

of systems of which more than 60% is not

needed.

Case studies

1. Consolidated Fibres -- Zero failure - anti-

fragile

2. Vikram Cement -- Zero failure - anti-fragile

3. Tata Metaliks -- Zero failure - anti-fragile

4. Tata Metaliks Kubota Pipes -- Zero failure -

anti-fragile

5. Gujarat Cement Works -- Zero failure - anti-

fragile

Maintenance Strategies

1. Breakdown -- react to surface events -

fragile

2. Preventive -- effort to bring order & control -

fragility

3. Condition Based -- monitor & respond --

fragility reduced but not eliminated

Availability Centered Maintenance

Combine all 4 strategies for anti-fragility to

optimize cost & energy to improve productivity

through increased availability of time &

resources

What can be achieved?

Failures come down by 99%

Principles of ACM

1. Oscillations

2. Wear

3. Flow

The underlying principle is entropy

Sensing System Behavior

1. History.

2. Interdependent Interactions - evidence

based

3. Understanding Relationships, Patterns, No-

patterns, Causes

4. Modifying Interactions

ACM

Techniques/Methods/Processes

(Summary)

1. Observations

2. NEME - Notice, Engage, Mull, Exchange

3. Why- Why?? -- systemic application

4. Creativity

ACM - Dynamic Plan for Anti-fragility

Workshop

Thank You

Wish You Failure Free Anti-fragility!!

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