...
| Info |
|---|
Think about the follow categories when creating a list of risks: Technical: Requirements, Technology, Interfaces, Performance, Quality External: Customer, Contract, Market, Supplier Organizational: Project Dependencies, Logistics, Resources, Budget Project Management: Planning, Schedule, Estimation, Controlling, Communication |
🟩 added to Analysis and Response
General Failures
🟩 Part delivery is much slower than expected, pushing back testing and therefore project deadlines
Members miss deliverable due to increased work load
Schedule didn’t allow for multiple iterations to occur, now we’re stuck with a less-than-ideal product
🟩 The drone isn’t competitive
The drone crashing during competition
battery level low
Mechanical Airframe Failures
Unanticipated electromagnetic shielding/interference on the frame, requiring electronics to be placed elsewhere
Bolts missing/coming off during flight
Landing gear fails on impact
Barbies are not secured properly in flight
Boards are not secured in flight
Water gets into the avionics compartment
Parts disconnect during flight (wings, tail)
Control surfaces fail
Motor failure
Sensors dislodged
Heat causing deformation of 3D printed parts
Mechanical failures (permanent deformation or breaking) caused by stresses
Elastic deformation of frame due to stresses
Imperfections in machined parts (3D printed brackets included) causing stress concentrations → fracture → propagate to fatal failure
Ground Station Failures
Antenna towers fall over
Wires disconnect in inaccessible regions of the tower
Devices and equipment are damaged in transport, we only find out when we get there
Power failures
Controls loops failure
Antennas damaged by weather (hail, due to stresses from wind, water damage)
Over/undervolting by accident
Electronic Failures
Wires disconnecting
Boards shorting
static electricity (possible ground plane)
Inclement weather during flight (limit flight window)
Antenna Brownout → drone altitude hold, antenna pattern search → fatal failure.
hardfault (failover)
Batteries not charged
batteries discharging past safe levels
Arc short
Overheating & auto-shutoff
Software Failures
Sens failure (glide)
autopilot failure (pilot takeover)
fly by wire failure
lost AHRS // no inertial nav → fatal failure
incorrect command deciphering → pilot disarm / takeover → fatal failure
control surface output inverted. → pilot disarm/takeover → fatal failure.
telemetry lost (follow VFR & divert)
telemetry modem failure
board modem module failure
software manager failure.
controls/PID failure
incorrect PID values
controls runaway (I term runaway?)
flipped motor direction
RC link lost (divert and glide)
Landing Pad not found
search → find?
heading lost
see 3, 6.
RF Interference from other teams/environment
Pilot failures
improper site assessment
flying into obstacles // not being aware of restricted flight areas
improper communication
heat?cold?
dehydration
Risk Analysis (use to understand impact)
...
Risk Event | Related Subteam | Probability % (P) | Severity Rating (S) | Risk Score (P*S) |
|---|---|---|---|---|
XXX | ||||
Competition paperwork isn’t finished on time leading to not being able to compete | all | Possible | Extreme | Extreme 80 |
The competition drone doesn’t fly adequately enough to be competitive | all | Possible | Tolerable | Medium 40 |
Risk Response (use to mitigate risks)
...
Risk Event | Risk Response | Assignee (RSE) | Andy fucks up | Don’t let Andy touch anything | Andy Meng |
|---|---|---|---|---|---|
Competition paperwork isn’t finished on time leading to not being able to compete |
| Hamza Ali to finish the rough draft for the report | |||
The competition drone doesn’t fly adequately enough to be competitive |
| Aaron Dyck (Deactivated) schedule flights and help with organizing flights |
Risk Monitoring (use to document risks)
...
Risk Event | Risk Impact | Future Mitigation |
|---|---|---|
Deadline for competition drone timeline went over |
|
|