MSD Project Risk Assessment Template

Transcription

1 MSD Project Risk Assessment Template ID Risk Item Effect Cause Describe the risk briefly What is the effect on any What are the possible or all of the project cause(s) of this risk? deliverables if the cause actually happens? Fail to meet lifting requirements Fail to get hand to open/close with multiple muscles movement of thumb with multiple muscles rotation/movement of shoulder/elbow/wrist Fail to control minimum gripping strength System does not work at depth 7 Valves corrode 8 9 System leaks or controls get wet or flooded Too much friction in elbows or joints to allow smooth motion Limits performance of hand Lack of dexterity Cant pick up fragile objects Impacts performance, Mckibben muscles not strong enough Likelihood Severity Synchronization, space, tendon stretch Difficult to incorporate Importance L*S Action to Minimize Risk What action(s) will you take (and by when) to prevent, reduce the impact of, or transfer the risk of this occurring? More attention to controller interface design, spring back- up design Extended design time for thumb, research/ benchmarking Mckibben muscles restrict movement Hybrid design Valve design, lack of sensors/feedback, movement not delicate enough Not waterproof, Design focus on waterproofing, muscle problems, testing mckibben muscles pressure problems underwater Research materials before buying, spare parts increases maintenance Material selection Not waterproof/sealed, Controls fail to function sealing fails Restricted motion, lack of control, lack of weight capacity Improper design Design focus on waterproofing, test before submerging Material selection and assembly design Owner Who is responsible for following through on mitigation?

2 10 Controls too coarse for fine adjustments 11 Pump fails Material in frame fails or bends at capacity Pump fails to supply proper pressure or flow rate Restricted motion, lack of control System does not operate System collapse Poor performance 14 Muscles fails Motion restricted 15 Tendon fails Motion restricted 16 Tendon stretches Motion restricted Not enough room in arm to house all 17 components/muscles Reduce functionality Limited performance, reduced feasibility of Fluid in muscles does not mckibben muscles 18 offer right characteristics underwater applications 19 Underwater filter clogging Can t meet budget 20 constraints Lifetime shortening, reduced performance overtime Unable to complete prototype Valve response delay, slow feedback to user Unreliable motor, power surge, overheating, misuse stress miscalculation, fatigued design Improper pump selection Poor packaging, large muscles Check pump specs before buying, surge protector, lifetime testing Proper material selection, consult faculty with FEA analysis Confirm pump requirements before buying Accurate CAD design, muscle selection before detailed prototype design Pressure, muscle selection Analyze past mckibben projects Dirty water, poor filter selection, improper Proper maintenance, proper filter maintenance selection design complexity Simplistic alternate designs {may not meet all requirements}

3 21 Corrosion of frame 22 Dry rotting from rubber Impacts performance, increases maintenance, reduces lifetime, reduces structural integrity Material selection Water leakage, electrical failure cycling rubber in and out of water Research materials before buying, spare parts Proper material selection, maintenance 23 Power surge Electronics failure Power supply fails Surge protection built in 24 Finger won t return to neutral state Loss of functionality Fatigue, friction, improper control, improper design Testing, benchmarking design 25 Commercial mckibben muscles have a long wait time/ cant purchase them cant build prototype Poor planning Plan ahead for prototype assembly, contact suppliers before selection Detailed design isn t complete on time Cant build prototype, boeing unsatisfied, cant attend Imagine risk management Plan ahead Wrist doesn t pitch due to load on finger muscles Limited functionality Spacing design Proper design No time to design intuitive controller Pressure doesn t release when controller disconnected 30 Electrical Wire/cable failure 31 Failure to meet customer specs Difficult to use (need computer with labview) Time management Safety concerns, storage Limited functionality, partial/complete control failure Boeing dissatisfied Plan ahead, be prepared to use labview, training Improper fail safe design Testing, fail safe design Not waterproof, pinch points, corrosion, wiring Waterproof design, proper wiring design design Proper planning, proper design, proper project management, design, poor project consistently meet with customer to management review progress

4 Likelihood scale Severity scale 1 - This cause is unlikely to happen 1 - The impact on the project is very minor. We will still meet deliverables on time and within budget, but it will cause extra work 2 - This cause could conceivably happen 2 - The impact on the project is noticeable. We will deliver reduced functionality, go over budget, or fail to meet some of our Engineering Specifications. 3 - This cause is very likely to happen 3 - The impact on the project is severe. We will not be able to deliver, or what we deliver will not meet the customer's needs. Importance Score (Likelihood x Severity) use this to guide your preference for a risk management strategy Prevent Action will be taken to prevent the cause(s) from occurring in the first place. Reduce Action will be taken to reduce the likelihood of the cause and/or the severity of the effect on the project, should the cause occur Transfer Action will be taken to transfer the risk to something else. Insurance is an example of this. You purchase an insurance policy that contractually binds an insurance company to pay for your loss in the event of accident. This transfers the financial consequences of the accident to someone else. Your car is still a wreck, of course. Accept Low importance risks may not justify any action at all. If they happen, you simply accept the consequences.

5 ID Risk Item Effect Cause movement of thumb with Difficult to 1 multiple muscles Lack of dexterity incorporate rotation/movement of shoulder/elbow/wrist System does not work at depth Likelihood Severity Importance Action to Minimize Risk Extended design time for thumb, research/ benchmarking Mckibben muscles restrict movement Hybrid design Not waterproof, Design focus on waterproofing, muscle problems, testing mckibben muscles pressure problems underwater 3 Not System leaks or controls waterproof/sealed, 4 get wet or flooded Controls fail to function sealing fails Too much friction in elbows Restricted motion, lack or joints to allow smooth of control, lack of weight 5 motion capacity Improper design Muscles fails Motion restricted 7 Tendon fails Motion restricted 8 Tendon stretches Motion restricted Fluid in muscles does not offer right characteristics Finger won t return to neutral state Detailed design isn t complete on time Limited performance, reduced feasibility of mckibben muscles underwater applications Loss of functionality Cant build prototype, boeing unsatisfied, cant Design focus on waterproofing, test before submerging Material selection and assembly design Pressure, muscle selection Analyze past mckibben projects Fatigue, friction, improper control, improper design Testing, benchmarking design risk management Plan ahead Owner

6 attend Imagine No time to design intuitive controller Failure to meet customer specs Can t meet budget constraints Difficult to use (need computer with labview) Time management Boeing dissatisfied Unable to complete prototype design, poor project management design complexity Plan ahead, be prepared to use labview, training Proper planning, proper design, proper project management, consistently meet with customer to review progress Simplistic alternate designs {may not meet all requirements}