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42 D.ÖZTÜRK and H.AKYILDIZ
Appendix:
Appendix A: Applied FMEA procedure on requirements of rotor swing stabilizer
Failure mode Effect S Cause O RPN
System does not be opened/closed manually
Rotors do not rotate
Rotation direction of rotors is not correct
Rotation direction of rotors is same
İnclination angles do not be sensed
Flow direction and velocity does not be sensed
Sensors do not inform the master control unit about
System cannot The users will give up to use inclination angle 3 24
1 damp the roll the system 8 Master control unit does not inform the battery to work
motion User interface does not inform the master control unit to
work
Battery does not transfer the power to power unit
Drive motor does not be activated
Swivel motor does not be activated
Rotors do not be opened
Drive mode does not be activated
Wire damages
It takes too much time to open/close the system manually
System cannot Power transfer is interrupted from battery to master control
damp the roll The users might complain it unit 4 24
2 motion all the and try to fix it 6 Power transfer is interrupted from battery to power unit
time while its Drive motor does not be activated
working Drive mode does not be activated
Park mode does not be activated
System cannot Speed is not enough
3 produce The users might accept it 6 Speed is excessive 4 24
İnclination angles cannot sensed correctively
sufficient lifting and tolerate it
force Rotors do not rotate enough to produce efficient lifting
System does not be opened/closed manually
İnclination angles do not be sensed
Rotors do not rotate
Flow direction and velocity does not be sensed
Sensors do not inform the master control unit about
inclination angle
Master control unit does not inform the battery to work
System cannot The users will give up to use User interface does not inform the master control unit to 2 16
4 produce any the system 8 work
lifting force Battery does not transfer the power to power unit
Drive motor does not be activated
Swivel motor does not be activated
Rotors do not be opened
Drive mode does not be activated
Wire damages
Rotation direction of rotors is not correct
Rotation direction of rotors is same
5 Fully electrically The users will give up to use 8 Wire damages 6 48
driven system the system
cannot work
Fully electrically
6 driven system The users might complain it 7 Wire damages 6 42
only works at and try to fix it
some sequences
İnclination angles cannot sensed correctively
Fully electrically Flow direction and velocity does not be sensed
7 driven system The users might complain it 7 correctively 3 21
send the wrong and try to fix it Sensors do not inform correctly the master control unit
commands about inclination angle
Depth and port distance do not be sensed correctively
Appendix A (continue): Applied FMEA procedure on requirements of rotor swing stabilizer
GiDB|DERGi Sayı 7, 2016
