document.xls Printed 04:28:26,04/22/2023 Page 1 of 3

Failure modes and effects analysis (FMEA)

Project: QUAD TORC Date: 23/05/2015

FMEA Team: 20150191 - THE CENTAURS Prepared by: VISHNU ROY

SEV = How severe is effect on the customer?

OCC = How frequent is the cause likely to occur?

DET = How probable is detection of cause?

RPN = Risk priority number in order to rank concerns; calculated as SEV x OCC x DET

Process step Potential failure mode Potential failure effects Potential causes Current process controls Actions taken

10 10 10 1000 10 10 10 1000

Chassis Driver at risk 10 6 2 120 3 2 2 12

A-arms Mechanical failure Serious injury 10 3 2 60 Proper maintainance 2 2 2 8

Steering column Mechanical failure Inability to steer 9 3 Final inspection 2 54 Proper maintainance Maintainance done 2 2 2 8

Engine Mechanical failure 10 Dirty air and fuel 3 N/A 2 60 Proper maintainance Maintainance done 2 2 2 8

SEV

OCC

DET

RPN

Actions recommended

Responsibility (target date)

New SEV

New OCC

New DET

New RPN

What is the step?

In what ways can the step go wrong?

What is the impact on the customer if the failure mode is not prevented or corrected?

What causes the step to go wrong? (i.e., How could the failure mode occur?)

What are the existing controls that either prevent the failure mode from occurring or detect it should it occur?

What are the actions for reducing the occurrence of the cause or for improving its detection? You should provide actions on all high RPNs and on severity ratings of 9 or 10.

Who is responsible for the recommended action? What date should it be completed by?

What were the actions implemented? Include completion month/year (then recalculate resulting RPN).

Structural failure - Frame bends

High load or shock / Poor material design

Simulation and Analysis using software / Final inspection

Proper maintainance / Careful designing

Jayasurya M and Vishnu Roy, will be completed by 15/06/2015

Frame analysis and simulation done / Maintainance done

High load/shock / Poor material design

Lotus Suspension Analysis software / Final inspection

Jayasurya M, will be completed by 12/05/2015

Suspension analysis and simulation done

External foreign material / damage in steering linkages

Abijith Menon, will be completed by 16/06/2015

Serious injury caused by explosion

Kiran Hareendran, will be completed by 10/06/2015

document.xls Printed 04:28:26,04/22/2023 Page 2 of 3

Failure modes and effects analysis (FMEA)

Project: QUAD TORC Date: 23/05/2015

FMEA Team: 20150191 - THE CENTAURS Prepared by: VISHNU ROY

SEV = How severe is effect on the customer?

OCC = How frequent is the cause likely to occur?

DET = How probable is detection of cause?

RPN = Risk priority number in order to rank concerns; calculated as SEV x OCC x DET

Process step Potential failure mode Potential failure effects Potential causes Current process controls Actions takenSEV

OCC

DET

RPN

Actions recommended

Responsibility (target date)

New SEV

New OCC

New DET

New RPN

Fuel tank Explosion in tank / Leakage 10 1 Final inspection 2 20 Maintainance done 1 1 1 1

Tires and wheels 10 2 Final inspection 3 60 3 2 2 12

Brakes 10 3 Final inspection 2 60 Proper maintainance Maintainance done 2 2 2 8

Transmission Mechanical failure Driver at risk 9 Loose chains / Gear slip 3 Final inspection 2 54 Proper maintainance 1 1 1 1

Seats Driver at risk 5 1 Final inspection 6 30 1 1 1 1

Serious injury caused by explosion

Sparks / Overpressure / Faulty canister

Replacement / Maintainance

Jaydat Goswami, will be completed by 12/06/2015

Insufficient grip on track due to tire tread wear

Vehicle skids when the brake is applied resulting in accident

Improper inflation pressure / Misalignment

Replacement / Maintainance

Hafeez K G, will be completed by 09/06/2015

Replaced / Maintainance done

Insufficient friction provided by the brake pads and wheels

Vehicle does not slow down when the brake is applied resulting in accident

External foreign material reduces friction / Damage in brake cables

Anand Sivasankar, will be completed by 14/06/2015

Vishnu Santhosh, will be completed by 10/06/2015

Replaced / Maintainance done

Loose seats causing vibrations and discomfort

Seat mounting bolts/nuts not fully tightened

Replacement / Maintainance

Godvin Abi Mathew, will be completed by 10/06/2015

Replaced / Maintainance done