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Risks

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Shared by: xiuliliaofz
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posted:
10/25/2011
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6
ID Risk Item Effect Cause Likelihood Severity Importance

Inability to control system Unpredictable system Unfamiliarity with control

1 9 9 81

(electronics) behavior systems



Air cannot be routed to the Inlets blocked by other

2 Cannot actuate system 3 9 27

system customer components



Inability to control system Unpredictable system Unfamiliarity with pneumatic

3 3 9 27

(pneumatics) behavior control



Schedule cannot be

4 Parts ordered too late Part lead time too long 3 9 27

maintained



5 System failure Car unable to finish race Pneumatic failure 3 9 27



Solenoid cannot accurately Unpredictable system Actuator volume cannot be

6 3 9 27

control air pulse behavior regulated by solenoid



Manual controls do not Desired clutch position is Manual controls not mapped

7 3 9 27

accurately control clutch not met to clutch location properly



Electronics exposed to high Electronics malfunction / Electronics mounted in close

8 3 9 27

temperatures fail proximity to engine



Exhaust port of solenoids System cannot exhaust Debris enters exhaust port of

9 3 9 27

clogs pressure solenoid



Failing to fully disengage Cannot fully disengage

10 Actuator stroke too short 1 9 9

clutch clutch



Slows system response by

11 Solenoids are too large Solenoids too large 1 9 9

increasing air volume



Mechanical override will System fails completely if Stiction in sheath too high /

12 3 3 9

not disengage clutch electronics also fail Routed improperly

Driver cannot actuate clutch Mechanical override too hard

13 System fails completely 1 9 9

during system failure to actuate



Electronics fail to work due System cannot Housing fails to seal out water

14 1 9 9

to environment automatically actuate / environment



Unable to purchase

15 Budget overrun Inaccurate budgeting 1 9 9

necessary parts



16 System failure Car unable to finish race Electronics failure 1 9 9





17 Customer delays Unable to attach to car Car not constructed 3 3 9



Unable to achieve full Cannot use system to fully Actuator cannot be tightly

18 3 3 9

closed loop control control slip ratio controlled



Unable to achieve infinite Pneumatic system not fine

19 Cannot optimize slip ratio 3 3 9

variation enough



Changing customer

20 Development delays Car design changes 3 3 9

requirements



Changing Senior Design Changing timeline, missed

21 Deliverables delayed 3 3 9

Timeline deliverable instructions



Actuator mount fails Automatic clutch control

22 Insufficient strength 1 9 9

mechanically fails



Electronics fail to work due Electronics malfunction / Electronics not isolated from

23 1 9 9

to environment fail vibration



Car downtime prevents System replacement

24 Maintenance time 1 3 3

competition unavailable



Driver cannot actuate Not able to control system Paddle too far from driver /

25 1 3 3

manual controls manually too small

Failing to meet weight Prevent customer from

26 System too heavy 1 1 1

constraints reaching car weight goal

Action to Minimize Risk Owner

Review coursework, consult with

Joe Corea

professors



Review design with customer, Tim

accurate CAD modeling Monahan



Review coursework and customer's Tim

previous work Monahan



Prompt vendor communication Japh Learn





Back-up system Japh Learn



Tim

Perform component level testing

Monahan



Test potentiometer, determine

Joe Corea

baseline setup



Avoid mounting components in Bryan

enclosed areas near heat sources Reinheimer



Use filter / port cap to prevent FOD Tim

from entering solenoid Monahan



Accurate CAD modeling, Tim

component selection Monahan



Accurate CAD modeling, Tim

component selection Monahan



Lube sheath during installation,

Japh Learn

maximize bend radii of sheath

Design focus on ergonomics and

Ed Gliss

integration



Proper seal design, bench testing Joe Corea





Prompt vendor communication Ed Gliss





Back-up system Japh Learn



Work with customer to ensure

Ed Gliss

timeline is followed



Use table of values instead Joe Corea



Tim

Use discrete locations

Monahan



Continuous customer involvement Ed Gliss



Continuous surveillance of

All

MyCourses



Proper FEA, modeling and Bryan

implementation Reinheimer



Use rubber isolators to minimize Bryan

impact of vibrations Reinheimer



Use OTS components, build 2 full Bryan

systems Reinheimer



Prototype steering wheel, take

Ed Gliss

measurements of users

Bryan

Correct component selection

Reinheimer



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