Page 41 - 07

38 D. ÖZTÜRK and H. AKYILDIZ

Figure 6. Fault Diagram of rotor swing stabilizer system.

Experienced values of Rotor Swing Stabilizer is (a) and (r) values related the each other. On the
other hand, (c) value could be changed according to operation area. By comparing the
experienced values obtained from previous test or computational analysis to values measured
during operation time, fault could be found.
FMEA is carried out as a fault analysis, risky parts of stabilizer system are found and solutions
are offered. Design FMEA is applied according to rotor swing stabilizer’s requirements,
functions and components.
5. FMEA Methodology
Introduction of a new product or a process in today’s competitive market prompt producers to
reduce the failure risks to minimum. To maximize the chance for achievement, design in quality
and reliability of the system should be at the early stage of the development cycle. Life cycle
costs can be reduced by a successful practice of FMEA. Also, preventing the foreseen problems
is less expensive than fixing them. Failure Modes and Effect Analysis is a method for
examining possible problems early in the development cycle so it is possible to take action
before fault occurs and enhance the reliability. Potential failure modes and effects on process
can be identified by FMEA. The most important step is the foreseeing what can be wrong on the
process itself. It is not possible to predict all of the faults for certain; however, an elaborate list
should be ready. An FMEA should be the guide to the development of a complete set of actions
that will reduce risk associated with the system, subsystem, and component or
manufacturing/assembly process to an acceptable level [7]. Moreover, FMEA is an engineering
examination completed by a cross functional team of subject matter experts that thoroughly

GiDB|DERGi Sayı 7, 2016